HomeMy WebLinkAboutItem 06.j Date: October 19, 2020 Item No.
RESOLUTION APPROVING FEASIBILITY REPORT AND
CALLING A PUBLIC HEARING FOR HIGHVIEW AVENUE IMPROVEMENTS
Proposed Action
Staff recommends adoption of the following motion: Move to approve a resolution approving the
engineering feasibility report and calling a public hearing for Highview Avenue Improvements,
City Project 21-03.
Overview
The City Council authorized City staff to prepare a feasibility report for the Highview Avenue
Improvements project on September 8, 2020. The feasibility report has been completed.
Based on information in the Feasibility Report, the estimated cost for the Highview Avenue
Improvements project is $2,213,649. Recommended funding sources are Water Operating Fund,
Sanitary Sewer Operating Fund, City issuance of debt which is repaid with property tax levies and
assessments to benefitting property owners (consistent with the City’s Special Assessment Policy
for Roadway Rehabilitation).
Primary Issues to Consider
• Citizen Comments
• Project Financing
Supporting Information
• Project Location Map
• Feasibility Report dated October 19, 2020
Financial Impact: $2,213,649 Budgeted: Y☒ N☐ Source: Multiple Sources
Related Documents: Lakeville 5-year Capital Improvement Plan (2021-2025)
Envision Lakeville Community Values: Design that Connects the Community
Report Completed by: Christina Orlowsky, Project Engineer
Primary Issues to Consider
• Citizen Comments
A virtual Open House was made available on October 8, 2020; there was no significant
opposition to the project. Multiple questions and comments were shared with City staff.
The primary topics were related to: overall project scope, speed awareness/traffic calming
measures, individual construction impacts, and requests to construct a) trail on the west
side of Highview Avenue (from 172nd to 160th Street), b) bury overhead power lines, and c)
construct turn lanes and pedestrian enhancements at the 168th Street/Interlachen Blvd
intersection.
• Project Financing
The City’s cost-share for roadway and storm sewer improvements, including storm
sewer repair/replacement, will be financed from the issuance of G.O. Improvement
Bonds. The City’s share of debt will be financed with taxes, which are repaid with
property tax levies.
Public watermain improvements, including minor system maintenance and the
installation of corrosion protection best management practices, will be financed from
the Water Operating Fund.
Public sanitary sewer improvements, including infrastructure repair/replacement and
inflow and infiltration best management practices, will be financed from the Sanitary
Sewer Operating Fund.
A summary of project funding sources is included in the table below.
Anticipated Funding Source Feasibility
Report
City of Lakeville (property taxes)2,080,978$
Special Assessments 62,271
Water Operating Fund 60,614
Sanitary Sewer Operating Fund 9,786
Total 2,213,649$
CITY OF LAKEVILLE
RESOLUTION NO. 20-__
RESOLUTION APPROVING FEASIBILITY REPORT AND CALLING PUBLIC HEARING
FOR HIGHVIEW AVENUE IMPROVEMENTS
175TH STREET TO COUNTY STATE AID HIGHWAY (CSAH) 46 (160TH STREET)
WHEREAS, on October 19, 2020, the City Council received the feasibility report for the proposed
Highview Avenue Improvements between 175th Street and County State Aid Highway (CSAH) 46
(160th Street), City Project 21-03.
NOW, THEREFORE, BE IT RESOLVED, by the City Council of the City of Lakeville:
1. The Feasibility Report for Project 21-03 is hereby approved.
2. A public hearing is hereby called for November 16, 2020 at 6:30 p.m. at the Council
Chambers of the City Hall and the Clerk shall give mailed and published notice of such
hearing and improvement as required by law. Members of the public can participate in
person at Lakeville City Hall, 20195 Holyoke Avenue, or via telephone at 1-267-866-0999;
Meeting PIN: 9213 62 2092. The mayor will allow for public comments and questions at
the appropriate time.
ADOPTED by the Lakeville City Council this 19th day of October 2020.
______________________________
Douglas P. Anderson, Mayor
_________________________________
Charlene Friedges, City Clerk
Feasibility Report For
2021 Highview Avenue Improvements
City of Lakeville, MN
City Project No. 21-03
October 19, 2020
Submitted by:
Bolton & Menk, Inc.
12223 Nicollet Avenue
Burnsville, MN 55337
P: 952-890-0509
F: 952-890-8065
Prepared by: Bolton & Menk, Inc. Certification Page
2021 Highview Avenue Improvements ǀ T18.122617
Certification
Feasibility Report
For
2021 Highview Avenue Improvements
City of Lakeville
Lakeville, MN
City Project No. 21-03
Bolton & Menk Project No. T18.122617
October 19, 2020
I hereby certify that this plan, specification or report was
prepared by me or under my direct supervision, and that I
am a duly Licensed Professional Engineer under the laws of
the State of Minnesota.
By:
Eric Seaburg, P.E.
License No. 53712
Date: October 19, 2020
Prepared by: Bolton & Menk, Inc. Table of Contents
2021 Highview Avenue Improvements ǀ T18.122617
Table of Contents
I. EXECUTIVE SUMMARY .......................................................................................................................... 1
II. INTRODUCTION ..................................................................................................................................... 2
III. EXISTING CONDITIONS .......................................................................................................................... 3
Streets ........................................................................................................................................... 3
Sanitary Sewer .............................................................................................................................. 4
Watermain .................................................................................................................................... 4
Storm Sewer ................................................................................................................................. 5
Wetlands & Floodplain ................................................................................................................. 5
North Creek Culvert Erosion ......................................................................................................... 5
IV. PROPOSED IMPROVEMENTS ............................................................................................................. 7
Street ............................................................................................................................................ 7
Sanitary Sewer .............................................................................................................................. 7
Water Main ................................................................................................................................... 7
Storm Sewer ................................................................................................................................. 7
Wetlands & Floodplain ................................................................................................................. 7
North Creek Culvert Erosion ......................................................................................................... 8
V. PERMITS ................................................................................................................................................ 9
VI. EASEMENTS ..................................................................................................................................... 10
VII. ESTIMATED COSTS .......................................................................................................................... 11
VIII. COST ALLOCATION .......................................................................................................................... 12
Assessable Frontage ................................................................................................................... 12
Assessment Calculations ............................................................................................................. 13
Assessment Roll .......................................................................................................................... 14
IX. ASSESSMENT AND FINANCING SUMMARY ......................................................................................... 15
X. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2 ............................................................ 16
Existing Conditions...................................................................................................................... 16
Proposed Improvements ............................................................................................................ 17
Wetlands & Floodplain ............................................................................................................... 19
Permits ........................................................................................................................................ 19
Easements ................................................................................................................................... 19
Estimated Additional Costs ......................................................................................................... 19
Cost Allocation ............................................................................................................................ 20
Assessment Roll .......................................................................................................................... 21
Assessment and Financing Summary ......................................................................................... 22
XI. PUBLIC HEARING ................................................................................................................................. 23
Prepared by: Bolton & Menk, Inc. Table of Contents
2021 Highview Avenue Improvements ǀ T18.122617
Improvement Hearing ................................................................................................................ 23
Assessment Hearing ................................................................................................................... 23
XII. PROJECT SCHEDULE ........................................................................................................................ 24
XIII. FEASIBILITY AND RECOMMENDATION ............................................................................................ 25
Tables
Table 1 – Existing Street Segments ............................................................................................................... 3
Table 2 – Existing Street Segment As-Built Sections ..................................................................................... 3
Table 3 – Existing Sanitary Sewer Data ......................................................................................................... 4
Table 4 – Existing Water Main Data .............................................................................................................. 4
Table 5 – Existing Storm Sewer Data ............................................................................................................ 5
Table 6 – Estimated Project Costs ............................................................................................................... 11
Table 7 –Assessable Unit Summary ............................................................................................................ 12
Table 8 – Street Assessment Calculation .................................................................................................... 13
Table 9 – Storm Sewer Assessment Calculation ......................................................................................... 13
Table 10 – Assessment Roll ......................................................................................................................... 14
Table 11 – Assessment and Financing Summary ........................................................................................ 15
Table 12 – Summary of Current and Proposed Peak Discharge Rates ....................................................... 18
Table 13 – Estimated Additional Costs for Rural to Urban Conversion ...................................................... 19
Table 14 –Assessable Units – Rural to Urban Conversion .......................................................................... 20
Table 15 – Additional Street Assessment Calculation ................................................................................ 20
Table 16 – New Curb and Gutter Assessment Calculation ......................................................................... 21
Table 17 – Additional Storm Sewer Assessment Calculation ...................................................................... 21
Table 18 – Assessment Roll for Additional Project Costs – Rural to Urban Conversion ............................. 21
Table 19 – Assessment and Financing Summary – Rural to Urban Conversion.......................................... 22
Appendix
Appendix A: Figures
Appendix B: Preliminary Cost Estimates
Appendix C: Special Assessment Policy
Appendix D: Geotechnical Evaluation Report
Prepared by: Bolton & Menk, Inc. EXECUTIVE SUMMARY
2021 Highview Avenue Improvements ǀ T18.122617 Page 1
I. EXECUTIVE SUMMARY
Highview Avenue, from 175th Street to 160th Street (CSAH 46), is a major collector roadway that
predominantly provides access to residential developments. It does also provide direct access to two
churches and one single-family property. Vital public utilities including sanitary sewer, watermain,
and storm sewer are located within Highview Avenue and provide utility service to residents and
developments.
The roadway and utility systems have been upgraded in sections with development. To date, most
of the developable property fronting the roadway has been developed.
Highview Avenue is programmed in the City’s 2021-2025 Capital Improvement Plan as a 2021
construction project. The City Council ordered the preparation of this Report on September 8, 2020
to examine the infrastructure improvements necessary to serve the area into the future, including
associated costs and financing.
This Report analyses the rehabilitation of the existing roadway through the use of pavement
reclamation and paving. This Report also analyses the potential expansion of Highview Avenue to a
36’ wide roadway with an urban section that includes storm sewer and concrete curb and gutter
from 173rd Street to 165th Street. Widening would be accomplished with a combination of full-
depth-reclamation and partial street reconstruction. Other significant infrastructure improvements
detailed in this Report include:
· Pavement Rehabilitation
· Spot Utility Improvements
· Pedestrian Ramp Upgrades
The estimated project costs for the improvements outlined in this Report are $2,213,649. The
estimated additional project costs for the potential rural to urban conversion in Area 2 is $824,707.
Financing for this project would come from multiple funding sources that include: property tax
levy, special assessments, and the City water and sewer operating funds. This Report has been
prepared in accordance with the rules outlined in Minnesota Statutes Chapter 429 allowing for the
use of special assessments as a funding source.
Special assessment amounts for this project have been calculated in accordance with the City of
Lakeville’s special assessment policy. As shown in the Assessment Roll, proposed special
assessments include a per residential equivalent unit rate of $5,661. The additional residential
equivalent unit assessment for the potential rural to urban conversion in Area 2 is $5,992.
Upon receipt of this Report and in accordance with Minnesota State Statutes 429, the City Council
will need to call for and hold a public hearing to consider the improvements, order the
improvements, declare costs, and call for and hold an assessment hearing. Construction is
anticipated to take place in 2021.
Prepared by: Bolton & Menk, Inc. INTRODUCTION
2021 Highview Avenue Improvements ǀ T18.122617 Page 2
II. INTRODUCTION
The City of Lakeville’s 2021-2025 Capital Improvement Plan (CIP) programs Highview Avenue,
from 175th Street to 160th Street/CSAH 46 as a 2021 construction project. The City Council
authorized the preparation of this Feasibility Report at its September 8, 2020 meeting. This segment
of Highview Avenue is approximately 1.6 miles or 8,500 feet in length. Generally, the project scope
includes pavement reclamation, spot curb and gutter repair, and spot public utility improvements.
However, the section from 173rd Avenue to 165th Avenue will be analyzed for potential widening
and installation of curb and gutter and storm sewer. A depiction of the project extents is shown on
Figure 1 in Appendix A.
Highview Avenue has received various street and utility improvements over time as development
occurred adjacent to the corridor. The extent and type of improvements to Highview Avenue have
varied over time.
The City routinely inspects and rates its roadway infrastructure to best understand the condition of
the system and to plan for necessary rehabilitation. The improvements outlined in this report are
proposed as part of the City’s pavement management program.
A virtual open house was made available on October 8, 2020. High level project scope was shared
through the virtual open house. Interested individuals had an opportunity to comment on the project
and provide feedback. The following comments have been submitted at the time of this feasibility
report:
· Request made for burying the overhead power lines
· Requests made for the addition of a trail on the west side of Highview Avenue
· Requests made for turn lanes and stop signs along Highview Avenue at the intersection of
168th/Interlachen Blvd
· Requests made for turn lanes (in general, not location specific)
Additional neighborhood meetings will be held throughout the project to allow for further
communication with property owners.
Prepared by: Bolton & Menk, Inc. EXISTING CONDITIONS
2021 Highview Avenue Improvements ǀ T18.122617 Page 3
III. EXISTING CONDITIONS
Streets
Highview Avenue is a major collector road in the north central portion of the City. The
roadway is four-lane undivided from 175th Street to 173rd Street, two-lane undivided from
173rd Street to 165th Street, and two-lane divided from 165th Street to 160th Street. The
roadway is classified as a Municipal State-Aid Street (MSAS) and is eligible to receive
MSAS funds. The roadway varies in width, age, and typical section. Street improvements
have occurred at various times and in various capacities over the last 20 years.
· The area from 175th Street to 173rd Street was constructed and expanded to an urban
section as part of the Homestead Creek East development in 1992.
· The area from 173rd Street to 160th Street was constructed to a rural section as part of
City Project MSAP 188-105-00 in 1974.
· The area from 165th Street to 160th Street was constructed to an urban section as part
of the Vermillion Springs development in 2004.
The existing typical sections at various points along Highview Avenue are included in Figure
2A in Appendix A.
Table 1 and Table 2 below summarize the three distinct street areas based on their existing
conditions and as-built data.
Table 1 – Existing Street Segments
Limits Section Width OCI
175th Street to 173rd Street Urban 52’ 38
173rd Street to 165th Street Rural 34’ – 38’ 35
165th Street to 160th Street Urban 44’ 16
Table 2 – Existing Street Segment As-Built Sections
Limits
Wear
Course
Non-wear
Course
Aggregate
Base Subbase
175th Street to 173rd Street 2” 3” 8” 1’ Sand
173rd Street to 165th Street 5.5” – 7” 4” – 7” 1’ Improved Subcut
165th Street to 160th Street 1.5” 2” 6” 2’ Sand
The pavement between 175th Street and 173rd Street is approximately 25-30 years old and
shows signs of aging consistent with pavements of that age. Normal pavement distresses
present include transverse racking, longitudinal cracking, pavement oxidation, minor rutting,
block cracking, and alligator cracking. Crack sealing and patching are present on the surface.
The pavement between 173rd Street and 165th Street is approximately 45 years old and shows
signs of aging consistent with pavements of that age. Pavement distresses include transverse
cracking, longitudinal cracking, block cracking, pavement oxidation, and minor rutting.
Crack sealing and patching are present on the surface.
The pavement between 165th Street and 160th Street is approximately 15-20 years old and
shows signs of aging consistent with pavements of that age. Normal pavement distresses
include transverse cracking, longitudinal cracking, and pavement oxidation. Due to the
pavement quality, this section of pavement qualifies as a weak candidate for mill and overlay
and a standard candidate for pavement reclamation. It is a weak candidate for mill and
overlay due to its current pavement condition and likelihood for extensive reflective cracking.
Prepared by: Bolton & Menk, Inc. EXISTING CONDITIONS
2021 Highview Avenue Improvements ǀ T18.122617 Page 4
A geotechnical report was performed in October 2020 by Braun Intertec, Inc. The
geotechnical investigation included several soil borings, pavement cores, and manual probes
along Highview Avenue, with at least one occurring in each street segment. Generally, the
pavement characteristics are consistent with the as-built data. Refer to the geotechnical report
in Appendix D for additional results, discussion, and recommendations. Due to the existing
street sections and subsoils, Braun Intertec recommends pavement reclamation as the most
appropriate improvement practice for Highview Avenue.
A bituminous trail exists on both sides of Highview Avenue. The trail extends in segments
on the west side, but on the east side, it follows the full extent of the road. Bituminous trails
and concrete sidewalks exist at various intersecting side streets. Generally, the existing trails
and sidewalks are in good condition and do not require rehabilitation or replacement.
However, many pedestrian ramps are not compliant with current ADA requirements and
should be upgraded.
Sanitary Sewer
The existing sanitary sewer along Highview Avenue was constructed in segments similar to
the street improvements discussed above. Sanitary sewer is located in various segments along
the roadway. Table 3 below summarizes the age and type of sanitary sewer present.
Table 3 – Existing Sanitary Sewer Data
Limits Pipe Diameter Pipe Material Year Built
175th Street to 173rd Street 8-Inch VCP 1974
173rd Street to 165th Street None Existing
165th Street to 160th Street 8-inch PVC 2004
Based on field inspections performed by City Public Works staff, the sanitary sewer is in very
good condition. There are no known deficiencies with the system. However, existing sanitary
sewer manholes do not have inflow and infiltration barriers which is a current City practice
and is recommended to be included in the improvements.
Watermain
The existing water main along Highview Avenue was constructed in segments similar to the
street and sanitary sewer segments discussed above. Table 4 below summarizes the age and
type of water main present.
Table 4 – Existing Water Main Data
Limits Pipe Diameter Pipe Material Year Built
175th Street to 173rd Street 8-inch / 12-inch DIP 1990
173rd Street to 165th Street 8-inch / 12-inch DIP 1997/Unknown
165th Street to 160th Street 8-inch / 12-inch DIP 2004
Based on field inspections performed by City Public Works staff, the water main system is in
good condition. There are no known deficiencies with the system. However, as a preventative
measure, Public Works staff recommends adding anode bags and replacing gate valve and
hydrant bolts to prolong the useful life of the system.
Prepared by: Bolton & Menk, Inc. EXISTING CONDITIONS
2021 Highview Avenue Improvements ǀ T18.122617 Page 5
Storm Sewer
The existing storm sewer along Highview Avenue was constructed in segments similar to the
street, sanitary sewer, and watermain segments discussed above. Table 5 below summarizes
the age and type of watermain present.
Table 5 – Existing Storm Sewer Data
Limits Pipe Diameter Pipe Material Year Built
175th Street to 173rd Street 12-inch to 18-inch RCP 1990
173rd Street to 165th Street Rural Section – No Storm Sewer
165th Street to 160th Street 12-inch to 24-inch RCP 2004
Based on field inspections performed by City Public Works staff, the storm sewer system is
in good condition. There are only minor deficiencies to manholes, rings, and castings.
Wetlands & Floodplain
A wetland delineation was performed by Bolton & Menk in September 2020 to investigate
and delineate the existing wetlands. The results of the wetland delineation are depicted in
Figure 3 in Appendix A. Additional discussion regarding wetland type, species, and quantity
is outlined in a Wetland Delineation Application that was submitted to the City of Lakeville
and Minnesota Army Corps of Engineers.
Existing floodway and floodplains exist near North Creek. The floodway and floodplains are
depicted in Figure 3 in Appendix A.
North Creek Culvert Erosion
North Creek discharges under Highview Avenue and the easterly trail through a set of dual
corrugated metal pipe (CMP) culverts. The area near the stream crossing is currently eroding
and transporting sediment downstream. The channel was previously armored with grouted
riprap, which is currently being undermined leaving the grouted rock suspended above the
channel (Exhibit 1). Based on a field review, it appears the City has attempted to restore
some riprap in the area to encourage channel armoring and energy dissipation. The flow
through the culverts is high enough that the placed rock is moving (Exhibit 2). Furthermore,
the channel downstream of the recently placed riprap is incising and the banks are collapsing.
City staff is currently working with the Vermillion River Watershed on grant opportunities to
address the erosion in North Creek downstream of this project.
Prepared by: Bolton & Menk, Inc. EXISTING CONDITIONS
2021 Highview Avenue Improvements ǀ T18.122617 Page 6
Exhibit 1: Grouted riprap undermining and suspended above creek banks.
Exhibit 2: Riprap shifting downstream and channel banks eroding.
Prepared by: Bolton & Menk, Inc. PROPOSED IMPROVEMENTS
2021 Highview Avenue Improvements ǀ T18.122617 Page 7
IV. PROPOSED IMPROVEMENTS
Street
Due to the pavement conditions outlined in section III of this Report, full depth reclamation
(FDR) with spot curb and gutter repair is proposed for Highview Avenue for the entire length
of roadway. FDR would grind, pulverize, and mix the existing aggregate base with the
existing bituminous pavement. This mixture will be directly re-used as aggregate base. The
excess reclaim that must be removed to make room for the new bituminous can be salvaged
for reuse on site as needed for construction. Refer to the proposed typical sections in Figure
2B in Appendix A.
Highview Avenue is currently striped as a four-lane undivided road from 175th Street to 172nd
Street. This section of roadway will be reconfigured as a three-lane undivided road with turn
lanes to be provided at intersections. The reconfiguration of lanes will improve traffic
operations by removing turning vehicles from the thru lanes.
A summary of the roadway improvements is shown in Figure 4A and Figure 4B in Appendix
A.
Although the existing trails and sidewalks are in good condition, many of the pedestrian
ramps are not compliant with current ADA standards. Therefore, all noncompliant pedestrian
ramps along Highview Avenue should be replaced.
Sanitary Sewer
Generally, all existing manholes will be adjusted to fit the profile of the new roadway.
Adjustments will include the replacement of adjusting rings and the installation of I/I barriers
as necessary consistent with City construction specifications. Structure adjustments may
include the addition of barrel sections to achieve the desired rim elevation, as necessary.
A summary of all preliminary utility improvements is shown in Figure 5A and Figure 5B in
Appendix A.
Water Main
Generally, all gate valves within the pavement area will be adjusted to fit the profile of the
new roadway. Additionally, several gate valves, butterfly valves, and hydrants will also
receive new bolts. New bolts will help preserve key components of the water system. Anode
bags will also be installed at each dig location for corrosion prevention.
A summary of all preliminary utility improvements is shown in Figure 5A and Figure 5B in
Appendix A.
Storm Sewer
The existing storm sewer structures will be adjusted to fit the profile of the new roadway.
Adjustments will include the replacement of adjusting rings as necessary. Damaged castings
will be replaced as necessary. Also, failing grout on adjusting rings or around doghouses and
inverts will be repaired with fresh grout.
A summary of all preliminary utility improvements is shown in Figure 5A and Figure 5B in
Appendix A.
Wetlands & Floodplain
Pavement and spot utility work described in this Report are unlikely to cause wetland or
floodplain impacts. Pavement reclamation and paving will require little to no grading on the
roadway embankments. However, if grading work is incorporated during final design, a
review of existing wetlands should again be performed to ensure any impacts are permitted.
Prepared by: Bolton & Menk, Inc. PROPOSED IMPROVEMENTS
2021 Highview Avenue Improvements ǀ T18.122617 Page 8
North Creek Culvert Erosion
It is recommended that all the grouted rip rap be removed and replaced. The MnDOT
standard plate for rip rap at CMP outlet indicates a 16 to 20-foot plunge pool on the
downstream side of the culvert. It is also suggested that the vertical channel slopes be
flattened with some minor grading and armored with riprap to help control the stream
incision.
It is estimated that 350 to 400 cubic yards of MnDOT Class V riprap may be required to
properly protect the area between the road and trail and about 20 feet downstream of the
trail. The City could also explore a bioengineered solution for the stream bank restoration
that includes soil wrapping or live staking.
Prepared by: Bolton & Menk, Inc. PERMITS
2021 Highview Avenue Improvements ǀ T18.122617 Page 9
V. PERMITS
In order to construct the proposed improvements described in this Report it will be necessary to
obtain the following permits prior to the start of construction:
· Minnesota Pollution Control Agency (MPCA) for stormwater
o NPDES/SDS Construction Permit would be needed since disturbing over 1 acre
· Dakota County
o Permit for work within 160th Street right-of-way (County Road 46)
Prepared by: Bolton & Menk, Inc. EASEMENTS
2021 Highview Avenue Improvements ǀ T18.122617 Page 10
VI. EASEMENTS
All proposed street and utility improvements to Highview Avenue would be located within existing
public right-of-way or City-owned property. No permanent or temporary easements are anticipated
to be needed for the proposed roadway or utility construction.
For various work items, minor encroachment onto private property may be beneficial in order to
achieve a better overall quality of work. It is assumed that project staff will discuss these with
property owners and obtain right-of-entries on a case-by-case basis. These items may include:
· Hydrant and/or watermain valve repair
· Driveway connections
· Storm sewer installation
· Drainage swale grading and reestablishment
Prepared by: Bolton & Menk, Inc. ESTIMATED COSTS
2021 Highview Avenue Improvements ǀ T18.122617 Page 11
VII. ESTIMATED COSTS
Detailed estimates of probable construction costs have been prepared for the improvements
described in this Report and are included in Appendix B. All costs are based on anticipated unit
prices for the 2021 construction season. Table 6 below is an overall summary of the estimated
project costs and includes a 10% contingency and 28% allowance for engineering, legal,
administrative, and finance costs.
Table 6 – Estimated Project Costs
Proposed Improvements Rehab Area 1 Rehab Area 2 Total Project
Costs
Street $953,462 $1,050,494 $2,003,956
New Curb and Gutter $0 $0 $0
Pedestrian Ramps $30,007 $10,152 $40,159
Storm Sewer $65,300 $33,834 $99,134
Water Main & Sanitary Sewer $20,275 $50,125 $70,400
Total Project Costs $1,069,045 $1,144,604 $2,213,649
Prepared by: Bolton & Menk, Inc. COST ALLOCATION
2021 Highview Avenue Improvements ǀ T18.122617 Page 12
VIII. COST ALLOCATION
It is proposed that the project costs be assessed to the benefitted properties utilizing the City’s
current assessment policy, which requires 40% of street and storm sewer costs be assessed.
The City would be responsible for the remaining project costs consistent with City policy.
Many of the parcels and developments along Highview Avenue have previously paid escrows for
future improvements to Highview Avenue as part of their development(s). As such, parcels eligible
to be assessed as part of this project include the parcels shown in Table 7 below. A depiction of the
assessable parcels with their associated parcel number is shown in Figure 6 in Appendix A.
Per the City’s Assessment Policy, each of the assessable properties are zoned Single-Family and
therefore should be assessed on a residential equivalent per parcel (unit) basis. One residential
equivalent unit for the RS-2, Single Family Residential District is equal to 100 linear of front
footage for interior lots and 120 linear feet of front footage on corner lots.
Table 7 –Assessable Unit Summary
Parcel # Parcel ID Owner Front Footage Residential
Equivalent Unit
1 220090027010 Marlow R & Helen C Illg 410 LF 4
2 228175008080 Minnesota Valley Free Lutheran
Church 103 LF 1
3 224840001010 Messiah Lutheran Church 660 LF 6
Totals:
1,173 LF 11
Assessable Frontage
Only the fraction of front footage along the assessable parcels will be assessed. The total
front footage along the project corridor is needed to determine the ratio of costs to be
assessed and is calculated below.
Rehab Area 1: 175th Street to 173rd Street and 165th Street to 160th Street
· Gross Assessable Front Footage = 8,066 LF
Rehab Area 2: 173rd Street to 165th Street
· Gross Assessable Front Footage = 7,781 LF
Total Front Footage = 15,847 LF
Prepared by: Bolton & Menk, Inc. COST ALLOCATION
2021 Highview Avenue Improvements ǀ T18.122617 Page 13
Assessment Calculations
Assessments are calculated by identifying the total assessable project costs, identifying the
fraction of project costs attributable to the assessable parcels (ratio of assessable front footage
versus total project front footage), and multiplying by the assessment ratio per the City
assessment policy. This calculation has been performed in Tables 8-9 below.
Table 8 – Street Assessment Calculation
Assessable Costs
Total Street Assessable Costs $2,003,956
Fraction of Total Project Front Footage Assessed 7.40%
Fraction of Assessable Street Costs Assessed $148,333
Assessment Ratio Per Policy 40%
Assessed Street Costs $59,333
Assessable Units 11
Street Assessment Per Unit $5,394
Table 9 – Storm Sewer Assessment Calculation
Assessable Costs
Total Storm Sewer Assessable Costs $99,134
Fraction of Total Project Front Footage Assessed 7.40%
Fraction of Assessable Storm Sewer Costs Assessed $7,338
Assessment Ratio Per Policy 40%
Assessed Storm Sewer Costs $2,935
Assessable Units 11
Storm Sewer Assessment Per Unit $267
Prepared by: Bolton & Menk, Inc. COST ALLOCATION
2021 Highview Avenue Improvements ǀ T18.122617 Page 14
Assessment Roll
Each of the individual per unit assessment rates (Street, Storm Sewer) from the previous
sections are multiplied by the assessable units for each parcel and summed for a Total
Assessment amount. The Assessment Roll shown in Table 10 is a summary of the proposed
assessments for this project.
Table 10 – Assessment Roll
Parcel Owner Units
Street
Assessment
Storm Sewer
Assessment
Total
Assessment
1 Marlow R &
Helen C Illg 4 $21,576 $1,068 $22,644
2
Minnesota Valley
Free Lutheran
Church
1 $5,394 $267 $5,661
3 Messiah Lutheran
Church 6 $32,364 $1,602 $33,966
Totals: 11 $59,334 $2,937 $62,271
Prepared by: Bolton & Menk, Inc. ASSESSMENT AND FINANCING SUMMARY
2021 Highview Avenue Improvements ǀ T18.122617 Page 15
IX. ASSESSMENT AND FINANCING SUMMARY
Based on the cost allocation previously described, a summary of the assessable costs versus city
costs are outlined in Table 11 below with their associated funding source.
Table 11 – Assessment and Financing Summary
Proposed
Improvements Assessed Costs City Costs Total Costs Funding Source(s)
Street $59,334 $1,944,622 $2,003,956 Property Tax Levy, Special
Assessments
New Curb and
Gutter $0 $0 $0 (line item shown for
comparison later in Report)
Pedestrian
Ramps $0 $40,159 $40,159 Property Tax Levy, Special
Assessments
Storm Sewer $2,937 $96,197 $99,134 Property Tax Levy & Special
Assessments
Water Main &
Sanitary Sewer $0 $70,400 $70,400 Water & Sewer Operating
Totals: $62,271 $2,151,378 $2,213,649
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 16
X. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
This section of the Report discusses the scope, cost, and additional assessment for widening and
urbanizing the section of Highview Avenue from 173rd Street to 165th Street, referred to previously
in this Report as Rehab Area 2.
Existing Conditions
1. Street
The existing road is bituminous pavement without curb and gutter. The pavement width
is generally 34’. However, the width varies with the development of turn lanes near
intersections. Street drainage is conveyed to roadside ditches which convey stormwater
to North Creek or a storm sewer system near 160th Street.
2. Hydraulics – Potential Rural to Urban Conversion
The Highview Avenue project corridor drains north and south into North Creek. The
creek drains from west to east through dual corrugated metal pipe (CMP) culverts
under Highview Avenue and the trail east of the road. The road breaks to the north at
the high point approximately 170’ north of Hearthside Way. Stormwater runoff drains
north to 165th Street SW where it is captured by in place catch basins and storm sewer.
The current roadway is a rural section that is drained by open, vegetated ditch sections
on the east and west sides of the road. On the west side, the ditch is relatively wide and
has some intermittent low areas that capture and hold water. On the east side, a narrow
and shallow ditch in between the road and trail drain stormwater to intersection areas.
The intersections along Highview Avenue are not currently served by catch basins or
culverts, rather stormwater runoff overtops the intersection and continues to travel
downstream. Numerous stormwater management basins (wet sedimentation practices)
capture runoff from the adjacent residential areas.
The soils in the North Creek drainage area are primarily hydraulic soils group A and B
with moderate to high infiltration capacity. The soils north of the high point 170’ north
of Hearthside Way are primarily hydraulic soils group B and C, with low to moderate
infiltration capacity. Trapped water can be seen in the ditch areas in the northern North
Creek area to the 165th Street intersection.
North Creek has a FEMA defined Zone AE floodway. Any fill in the FEMA
floodplain would require additional assessment and permitting to show no rise in the
base flood elevation.
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 17
Proposed Improvements
1. Street
New B618 concrete curb and gutter would be installed as part of a rural to urban
conversion. The bituminous pavement would be reclaimed and paved in the same
manner previously discussed in this Report. With the addition of curb and gutter, the
excess reclaim can be salvaged and used as aggregate road base and subgrade
replacement for the widened area below the new curb. Refer to the proposed typical
sections in Figure 2C in Appendix A.
2. Storm Sewer
In order to capture the runoff created from the widened/urbanized roadway, new storm
sewer would be installed in all areas where storm sewer does not currently exist.
Generally, storm sewer would run from 173rd Street to North Creek, Hearthside Way to
North Creek, and Hearthside Way to 165th Street. Boulevard inlets would be required to
take drainage from sub watersheds outside of the roadway.
3. Hydraulics – Rural to Urban Conversion
Conversion of the roadway from rural to urban section would impact the drainage
conditions in the following ways.
· Ditch sections adjacent to the roadway provide natural retention of flow.
Capturing the roadway runoff in curb and gutter and catch basins changes the
drainage area’s ability to store water. Therefore, discharge rates increase
because the conveyance system is far more efficient.
· Stormwater volume tends to increase because the drainage areas natural ability
to infiltrate water has been removed.
· When new storm sewer is connected to in place storm sewer, the connection
point could be hydraulically taxed. That is, the current condition sees water
travel gradually through ditch sections and enter low points or intersections at
the surface where in place catch basins capture and move water to the pipe. The
inlet would have a capacity of about 2 to 3 cubic feet per second (cfs) regardless
of the inflow rate. When a new pipe is connected to the in place pipe, the water
is now being conveyed underground at the discharge capacity of the connecting
pipe, typically much greater than 2 to 3 cfs. Therefore, the existing 12” in place
pipe may be dramatically undersized to serve the roadway and pipe upsizing
may be required well downstream.
4. State Aid Catch Basin Spacing:
Based on projected average daily traffic (ADT) of 5400 cars per day, a design speed of
45 miles per hour (mph), and assumed roadway typical section, a maximum allowable
gutter spread would be limited to the shoulder and 1/3 of the driving lane for a 10-year
rainfall event. The proposed storm sewer layout with approximately 300’ catch basin
spacing was modeled to confirm the results stay below maximum allowable spread.
Exhibit 3 below summarizes MnDOT’s maximum spread requirements.
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 18
Exhibit 3: Summary of maximum spread requirements, MnDOT Drainage Manual (2000).
5. Rate Control:
Conversion of the roadway from a rural to urban section would result in an increase in
discharge rate. Table 12 summarizes the current and proposed discharge rates from the
area discharging to 165th Street and the area discharging to North Creek.
Table 12 – Summary of Current and Proposed Peak Discharge Rates
Rainfall
Event
Rainfall
Depth
Current –
Drainage Area
to 165th Street
Current –
Drainage Area
to North Creek
Proposed –
Drainage Area
to 165th Street
Proposed –
Drainage Area
to North Creek
(in) (cfs) (cfs) (cfs) (cfs)
2-Year 2.81 2.7 6.8 3.2 8.5
10-Year 4.17 4.1 10.1 4.9 13.1
50-Year 6.29 6.2 15.3 7.7 20.2
100-Year 7.41 7.3 18.1 9.1 23.2
If widening is recommended to be included in the improvements, the City should
consider constructing new rate stormwater best management practices (BMP) or
expanding in place BMPs to retain stormwater. The features could also be enhanced to
promote water quality and help the City meet its MS4 goals. The following describe
some potential locations for BMPs.
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 19
a) Work with Oak Hill Elementary School to construct a basin in the southwest
quadrant of 165th Street SW. The basin could outlet into the in-place storm sewer in
the intersection.
b) Expand ditch storage along the west side of Highview between Messiah Lutheran
Church and Interlachen Blvd.
c) Expand the in place stormwater pond located on Outlot A, Vermillion Springs.
Wetlands & Floodplain
Preliminary roadway modeling from 173rd Street to 165th Street indicates that impacts to
existing wetlands may be avoided during the installation of new curb and gutter and
associated grading. However, final determination of wetland impacts and mitigation must be
made during final design as final disturbance limits would depend highly on final roadway
design.
Although minor, floodway and floodplain impacts are expected with the rural to urban
conversion between 173rd Street and 165th Street. Preliminary roadway modeling in this
section indicate that fill would likely be placed in the floodway. Qualitatively, the amount of
fill would likely not negatively impact flood elevation. However, filling in the floodway
would require a Letter of Map Revision (LMOR) and/or No-Rise Certification to be
coordinated with FEMA and Minnesota Department of Natural Resources.
Permits
In order to construct the proposed improvements described in this section of the Report it
would be necessary to obtain the following permits prior to the start of construction:
1. Minnesota Department of Natural Resources (DNR)
· No-Rise Certification for work in flood plain or Letter of Map Revision
(LMOR) from FEMA
Easements
The potential rural to urban conversion could be achieved within existing public right-of-way
or City-owned property. No permanent or temporary easements are anticipated to be needed
for the potential roadway widening.
Estimated Additional Costs
A detailed estimate of probable construction cost has been prepared for the potential rural to
urban conversion and is included in Appendix B. All costs are based on anticipated unit
prices for the 2021 construction season. Table 13 below is an overall summary of the
estimated improvement costs and relative difference between the original estimate for
pavement reclamation and paving versus the potential rural to urban conversion.
Table 13 – Estimated Additional Costs for Rural to Urban Conversion
Proposed Improvements
Original Area 2
Estimate
Area 2 – Urbanized
Estimate Additional Cost
Street $1,050,494 $1,232,227 $181,734
New Curb and Gutter $0 $156,415 $156,415
Pedestrian Ramps $10,152 $10,152 $0
Storm Sewer $33,834 $520,393 $486,558
Water Main & Sanitary Sewer $50,125 $50,125 $0
Total Project Costs $1,144,604 $1,969,311 $824,707
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 20
Cost Allocation
It is proposed that the potential rural to urban conversion costs be assessed to the benefitted
properties utilizing the City’s current assessment policy, which requires 40% of street, 100%
of new curb and gutter, and 40% of storm sewer costs be assessed.
The City would be responsible for the remaining project costs consistent with City policy.
Parcel 3 from Table 7 is the only assessable parcel within Rehab Area 2 where the potential
rural to urban conversion is being considered. This parcel is detailed again in Table 14 below.
Table 14 –Assessable Units – Rural to Urban Conversion
Parcel # Parcel ID Owner Front Footage Residential
Equivalent Unit
3 224840001010 Messiah Lutheran Church 660 LF 6
Totals:
660 LF 6
1. Assessable Frontage
Only the fraction of front footage along the assessable parcels will be assessed. The
total front footage along the potential rural to urban conversion is needed to determine
the ratio of costs to be assessed and is calculated below.
Rehab Area 2: 173rd Street to 165th Street
· Gross Assessable Front Footage = 7,781 LF
2. Assessment Calculations
Assessments are calculated by identifying the total additional assessable project costs,
identifying the fraction of additional project costs attributable to the assessable parcels
(ratio of assessable front footage versus total area front footage), and multiplying by the
assessment ratio per the City assessment policy. This calculation has been performed in
Tables 15-17 below.
Table 15 – Additional Street Assessment Calculation
Assessable Costs
Additional Street Assessable Costs $181,734
Fraction of Total Project Front Footage Assessed 8.48%
Fraction of Assessable Street Costs Assessed $15,415
Assessment Ratio Per Policy 40%
Assessed Street Costs $6,166
Assessable Units 6
Additional Street Assessment Per Unit $1,028
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 21
Table 16 – New Curb and Gutter Assessment Calculation
Assessable Costs
New Curb and Gutter Assessable Costs $156,415
Fraction of Total Project Front Footage Assessed 8.48%
Fraction of Assessable New Curb and Gutter Costs Assessed $13,267
Assessment Ratio Per Policy 100%
Assessed New Curb and Gutter Costs $13,267
Assessable Units 6
New Curb and Gutter Assessment Per Unit $2,212
Table 17 – Additional Storm Sewer Assessment Calculation
Assessable Costs
Additional Storm Sewer Assessable Costs $486,558
Fraction of Total Project Front Footage Assessed 8.48%
Fraction of Assessable Storm Sewer Costs Assessed $41,271
Assessment Ratio Per Policy 40%
Assessed Storm Sewer Costs $16,508
Assessable Units 6
Additional Storm Sewer Assessment Per Unit $2,752
Assessment Roll
Each of the individual per unit assessment rates (Street, New Curb and Gutter, and Storm
Sewer) from the previous section are multiplied by the assessable units for the assessed parcel
and summed for a Total Assessment amount. The Assessment Roll shown in Table 18 below
is a summary of the additional assessment amounts if the section from 173rd Steet to 165th
Street is urbanized.
Table 18 – Assessment Roll for Additional Project Costs – Rural to Urban Conversion
Parcel Owner Units
Additional
Street
Assessment
[Per Unit]
New Curb and
Gutter
Assessment
[Per Unit]
Additional
Storm Sewer
Assessment
[Per Unit]
Total
Additional
Assessment
3
Messiah
Lutheran
Church
6 $1,028 $2,212 $2,752 $35,952
Prepared by: Bolton & Menk, Inc. POTENTIAL RURAL TO URBAN CONVERSION: REHAB AREA 2
2021 Highview Avenue Improvements ǀ T18.122617 Page 22
Assessment and Financing Summary
Based on the cost allocation previously described, a summary of the assessable costs versus
city costs are outlined in Table 19 below with their associated funding source.
Table 19 – Assessment and Financing Summary – Rural to Urban Conversion
Proposed
Improvements Additional
Assessed Costs
Additional
City Costs
Additional
Project
Costs Funding Source(s)
Street $6,168 $175,566 $181,734 Property Tax Levy, Special
Assessments, Escrows
Curb and Gutter $13,272 $143,143 $156,415 Property Tax Levy, Special
Assessments, Escrows
Pedestrian
Ramps $0 $0 $0 Property Tax Levy, Special
Assessments
Storm Sewer $16,512 $470,046 $486,558 Storm Sewer Infrastructure
Fund & Special Assessments
Water Main &
Sanitary Sewer $0 $0 $0 Water & Sewer Operating
Totals: $35,952 $788,755 $824,707
Prepared by: Bolton & Menk, Inc. PUBLIC HEARING
2021 Highview Avenue Improvements ǀ T18.122617 Page 23
XI. PUBLIC HEARING
In order to consider the use of assessments for financing a portion of the 2021 Highview Avenue
Improvements Project, Minnesota Statutes, Chapter 429 requires two public hearings be held
regarding the project.
A summary description of the two required hearings is provided below. Additional information
regarding the hearings is contained in the City of Lakeville’s Special Assessment Policy.
Improvement Hearing
The first public hearing is referred to as the “Improvement Hearing” and is called when the
Feasibility Report has been completed and is ready to be presented to the City Council.
Notice of the hearing is required to be made to the general public, as well as specifically to
those parcels proposed for assessment.
The information in the Feasibility Report is presented at the improvements hearing, including
the estimated project costs and the estimated assessments. After the hearing is closed, if the
City wishes to proceed with the project, the City Council then takes action to officially order
the improvements.
Assessment Hearing
The second public hearing is referred to as the “Assessment Hearing”. The purpose of the
assessment hearing is to present the actual assessment roll to the properties proposed to be
assessed. Specific notice of the hearing is required to be directly sent to those properties
proposed for assessment; notice must also be made to the general public.
To prepare for the assessment hearing, the City must have the final assessment roll prepared
with the actual assessment proposed to be levied against the properties. This differs from the
improvement hearing, where only the estimated assessments were presented. Preparation of
the final assessment roll must be based on actual costs from construction bids received.
Minnesota Statute allows the assessment hearing to be held either before the award of the
contract and start of construction, or after construction has been completed.
Prepared by: Bolton & Menk, Inc. PROJECT SCHEDULE
2021 Highview Avenue Improvements ǀ T18.122617 Page 24
XII. PROJECT SCHEDULE
The proposed project schedule is shown below:
Resolution Ordering Preparation of Feasibility Report (Completed)* ................... September 8, 2020
Neighborhood Informational Meeting (Completed) ................................................... October 8, 2020
Receive Feasibility Report* ...................................................................................... October 19, 2020
Set Public Hearing for Improvements* ..................................................................... October 19, 2020
Public Hearing (Improvements)* .......................................................................... November 16, 2020
Order Improvements, Authorize Preparation of Plans and Specifications* .......... November 16, 2020
Bid Opening ............................................................................................................. February 26, 2021
Declare Costs and Set Assessment Hearing* ............................................................... March 15, 2021
Neighborhood Meeting – Present Project and Assessment Amounts .......................... March 22, 2021
Assessment Hearing (Assessments), Award Contract* ................................................... April 5, 2021
Begin Construction ............................................................................................. Spring/Summer 2021
Substantial Completion .......................................................................................................... Fall 2021
* Denotes City Council Meeting Item
Prepared by: Bolton & Menk, Inc. FEASIBILITY AND RECOMMENDATION
2021 Highview Avenue Improvements ǀ T18.122617 Page 25
XIII. FEASIBILITY AND RECOMMENDATION
This Report has been prepared to investigate the potential for making improvements to the existing
Highview Avenue corridor, possible rural to urban conversion from 173rd Street to 165th Street, and
improvements to the City’s watermain and sanitary sewer systems.
This Report has identified the recommended improvements to the infrastructure, provided estimated
costs of the recommended improvements, and identified a method of cost allocation consistent with
the City of Lakeville’s adopted Special Assessment Policy to finance the improvements.
From an engineering standpoint, the base project is feasible, cost effective, and necessary due to the
condition of the existing infrastructure and need for rehabilitation. It is also feasible from a
construction standpoint, with a detailed schedule presented for completion of the work in 2021. The
City should recommend improvements based on the current CIP budget and infrastructure
maintenance needs.
Appendix A: Figures
175th Street172nd
S
t
r
e
e
t
173
rd
S
t
r
ee
t
Highview AvenueHolybrook TrailDodd B
lvd
(CR
9)168th
S
t
ree
tInterl
ac
h
e
n
Bl
v
d
Hearthside Way165th StreetGriffon TrailHillsboro CtHawthorn Path
Ho
m
i
n
y
C
tHominy Path160th Street (CR 46)Nor
th
C
r
e
e
k
Highview Avenue
(CITY OF APPLE VALLEY)H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Location Map.dwg 10/13/2020 5:41:14 PMR
Highview Avenue
City of Lakeville
Figure 1- Location Map
October 2020
LEGEND
PAVEMENT REHABILITATION - REHAB AREA 1
PAVEMENT REHABILITATION - REHAB AREA 2
(POTENTIAL RURAL TO URBAN CONVERSION)
NORTH CREEK
FEETSCALE
0 300 600
HORZ.R
14'
26'
CLROW ROW
50'50'
2.0%VARIES
12'14'12'
2.0%
23.33'
1:4
MAX
A TYPICAL SECTION - 175TH ST TO 173RD ST
45 MPH
2" - 2341 BIT. WEAR COURSE
BITUMINOUS TACK COAT
3" - 2331 BIT. BASE COURSE
8" - CLASS 5 AGGREGATE BASE (100% CRUSHED)
12" - SELECT GRANULAR BORROW
INSET A - BITUMINOUS STREET
INSET B - BITUMINOUS STREET
5 1/2 " - 7" BITUMINOUS PAVEMENT
4" - 7" - AGGREGATE BASE
EXISTING SUBGRADE
INSET A
17'17'
CLROW ROW
50'50'
2.0%
12'
THRU LANE 5'12'
THRU LANE5'
2.0%
33'
B TYPICAL SECTION - 173RD ST TO 165TH ST
45 MPH
INSET B
22.67'22.67'
CLROW ROW
60'
2.0%
4.0%
2.0%
37.33'
C TYPICAL SECTION - 165TH ST TO 160TH ST
45 MPH
EXISTING B618 CONCRETE
CURB AND GUTTER
2.0%
14.33'8'
BITUMINOUS TRAIL
SHOULDER
26'
BOULEVARD WIDTH VARIES 8'
BITUMINOUS TRAIL
1:4
MAX
1:4
MAX
1:4
MAX1:4
MAX
1.5" - TYPE 41 WEAR COURSE
BITUMINOUS TACK COAT
2" - TYPE 31 BASE COURSE
6" - CLASS 5 AGGREGATE BASE (100% CRUSHED)
24" - SELECT GRANULAR BORROW
INSET C - BITUMINOUS STREET
60'
28' BOULEVARD
4.0%
2.0%
8'
BITUMINOUS TRAIL
EXISTING B618
CONCRETE CURB AND
GUTTER (TYP)
2.0%
SHOULDER
3'3'
INSET C
H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Typical Section.dwg 10/13/2020 5:47:57 PMR
Highview Avenue
City of Lakeville
Figure 2A - Existing Typical Sections
October 2020
7.5'
26'
CLROW ROW
50'50'
2.0%VARIES
7.5'13'
2.0%
23.33'
1:4
MAX
A TYPICAL SECTION - 175TH ST TO 173RD ST
45 MPH - FULL DEPTH RECLAMATION (12")
2" - TYPE SP 12.5 BIT. WEARING COURSE MIX. (3,C) [SPWEB340C]
BITUMINOUS TACK COAT
2" - TYPE SP 12.5 BITUMINOUS NON-WEARING COURSE
MIXTURE (3,C) [SPNWB330C]
8" - RECLAIM MATERIAL
1" - EXISTING AGGREGATE BASE
12" - SELECT GRANULAR BORROW
INSET A - BITUMINOUS STREET
INSET B - BITUMINOUS STREET
2" - TYPE SP 12.5 BIT. WEARING COURSE MIX. (3,C)[SPWEB340C]
BITUMINOUS TACK COAT
4" - TYPE SP 12.5 BITUMINOUS NON-WEARING COURSE
MIXTURE (3,C) [SPNWB330C]
6" - RECLAIMED MATERIAL
EXISTING SUBGRADE
INSET A
22.67'22.67'
CLROW ROW
60'
2.0%
4.0%
2.0%
37.33'
C TYPICAL SECTION - 165TH ST TO 160TH ST
45 MPH - FULL DEPTH RECLAMATION (12")
INSET C
2.0%
14.33'8'
BITUMINOUS TRAIL26'
2" - TYPE SP 12.5 BIT. WEARING COURSE MIX. (3,C)[SPWEB340C]
BITUMINOUS TACK COAT
2" - TYPE SP 12.5 BITUMINOUS NON-WEARING COURSE
MIXTURE (3,C) [SPNWB330C]
8" - RECLAIM MATERIAL
24" - SELECT GRANULAR BORROW
INSET C - BITUMINOUS STREET
60'
28' BOULEVARD
4.0%
8'
BITUMINOUS TRAIL
SPOT REPLACEMENT
OF CONCRETE CURB
AND GUTTER (TYP)
B TYPICAL SECTION - 173ND ST TO 165TH ST
45 MPH - FULL DEPTH RECLAMATION (12")
12'12'
SPOT REPLACEMENT
OF CONCRETE CURB
AND GUTTER (TYP)
17'17'
CLROW
50'50'
2.0%
12'
THRU LANE 5'12'
THRU LANE5'
2.0%
33'
INSET B
SHOULDER
BOULEVARD WIDTH VARIES
1:4
MAX1:4
MAX1:4
MAX
SHOULDER
3'3'H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Typical Section.dwg 10/13/2020 5:48:23 PMR
Highview Avenue
City of Lakeville
Figure 2B - Proposed Typical Sections
October 2020
INSET B - BITUMINOUS STREET
2" - TYPE SP 12.5 BIT. WEARING COURSE MIX. (3,C)[SPWEB340C]
BITUMINOUS TACK COAT
4" - TYPE SP 12.5 BITUMINOUS NON-WEARING COURSE
MIXTURE (3,C) [SPNWB330C]
6" - RECLAIMED MATERIAL
12" SELECT GRANULAR BORROW
18'18'
CLROW ROW
50'50'
2.0%
12'
THRU LANE 6'12'
THRU LANE6'
2.0%
32'
B TYPICAL SECTION - 173ND ST TO 165TH ST
45 MPH - RURAL TO URBAN CONVERSION
INSET B
SHOULDER
BOULEVARD WIDTH VARIES 8'
BITUMINOUS TRAIL
1:4
MAX
1:4
MAX
2.0%
SHOULDER
1:3
MAX
1:3
MAX
B618 CURB AND
GUTTER (TYP)H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Typical Section.dwg 10/13/2020 5:48:42 PMR
Highview Avenue
City of Lakeville
Figure 2C - Typical Section - Potential Rural to Urban Conversion
October 2020
Highview Avenue
North CreekH:\LAKV\T18122617\CAD\C3D\FIGR-122617-Wetlands and Floodplains.dwg 10/6/2020 7:22:59 PMR
Highview Avenue
City of Lakeville
Figure 3 - Existing Wetlands & Floodplain
October 2020
RFEETSCALE
0 50 100
HORZ.
LEGEND
FLOODWAY
100-YEAR FLOODPLAIN
500-YEAR FLOODPLAIN
WETLAND
LIMITS
CCCDDCHPCHCCCHCLVTCLVTCLVTCLVTCPPPCCCCLVTCCHX X OE OE OE OE OE OE OE OE OE OE OE OE OE OEOEOEOEOEOEOEOE175th Street1
7
2nd
S
t
r
e
e
t
173
rd
S
t
r
ee
t
Highview Avenue
168th
S
t
ree
tInterl
ac
h
e
n
Blv
d
Hearthside WayNor
th
C
r
e
e
k
Highview Avenue
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA 26 SQ FTPERIMETER 50FTREM 95 SQ FT
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA 26 SQ FTPERIMETER 50FTREM 95 SQ FTAREA 26 SQ FTPERIMETER 50FTREM 95 SQ FT
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 'AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 'AREA = 15 SQ'REM = 48 SQ '
PERIMETER = 30 'H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Street Improvements.dwg 10/13/2020 6:04:36 PMR
Highview Avenue
City of Lakeville
Figure 4A - Street Improvements
October 2020
RFEETSCALE
0 150 300
HORZ.
LEGEND
PAVEMENT RECLAMATION
POTENTIAL RURAL TO URBAN
CONVERSION
EXISTING TRAIL
OR SIDEWALK
CONCRETE PEDESTRIAN
RAMP
WETLAND
LIMITS
APPROXIMATE GRADING
LIMITS
FLOODWAY /
FLOODPLAIN
DHDDGCOEOEOE165th StreetHillsboro CtHawthorn Path
Ho
m
i
n
y
C
t
Hominy Path
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30
'
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ '
PERIMETER =
3
0
'
AREA = 15 SQ
'
REM = 48 SQ
'
PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30
'
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA = 15 SQ'REM = 48 SQ 'PERIMETER = 30 '
AREA 26 SQ FTPERIMETER 50FTREM 95 SQ FT
H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Street Improvements.dwg 10/13/2020 6:07:29 PMR
Highview Avenue
City of Lakeville
Figure 4B - Street Improvements
October 2020
RFEETSCALE
0 100 200
HORZ.
LEGEND
PAVEMENT RECLAMATION
POTENTIAL RURAL TO URBAN
CONVERSION
EXISTING TRAIL
OR SIDEWALK
CONCRETE PEDESTRIAN
RAMP
WETLAND
LIMITS
APPROXIMATE GRADING
LIMITS
FLOODWAY /
FLOODPLAIN
175th Street1
7
2nd
S
t
r
e
e
t
1
7
3
rd
S
t
r
e
e
t
Highview Avenue
168th
S
t
ree
tInterl
ac
h
e
n
Blv
d
Hearthside WayNor
th
C
r
ee
k
Highview Avenue
>>>>>>>>>>>>>>>>>>>>>>>>>>H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Utility Improvements.dwg 10/6/2020 7:35:13 PMR
Highview Avenue
City of Lakeville
Figure 5A - Utility Improvements
October 2020
RLEGEND
EXISTING PROPOSED
SANITARY SEWER
WATERMAIN
STORM SEWER
>S S >
l l l
>>>>D
FEETSCALE
0 150 300
HORZ.
165th StreetHillsboro CtHawthorn Path
Ho
m
i
n
y
C
t
Hominy Path
>>>>>>>>>>>>H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Utility Improvements.dwg 10/6/2020 7:36:18 PMR
Highview Avenue
City of Lakeville
Figure 5B - Utility Improvements
October 2020
RLEGEND
EXISTING PROPOSED
SANITARY SEWER
WATERMAIN
STORM SEWER
>S S >
l l l
>>>>D
FEETSCALE
0 100 200
HORZ.
175th Street172nd
S
t
r
e
e
t
173
rd
S
t
r
ee
t
Highview AvenueHolybrook TrailDodd B
lvd
(CR
9)168th
S
t
ree
tInterl
ac
h
e
n
Bl
v
d
Hearthside Way165th StreetGriffon TrailHillsboro CtHawthorn Path
Ho
m
i
n
y
C
t
Hominy Path160th Street (CR 46)Nor
th
C
r
e
e
k
Highview Avenue
(CITY OF APPLE VALLEY)#1
#3
#2
H:\LAKV\T18122617\CAD\C3D\FIGR-122617-Assesable Parcels.dwg 10/13/2020 6:17:26 PMR
Highview Avenue
City of Lakeville
Figure 6 - Assessable Pacels
October 2020
LEGEND
ASSESSABLE PARCELS - BASE IMPROVEMENT
ASSESSABLE PARCELS - POTENTIAL RURAL TO
URBAN CONVERSION
FEETSCALE
0 300 600
HORZ.R
Appendix B: Preliminary Cost Estimates
CITY OF LAKEVILLE
HIGHVIEW AVENUE - PRELIMINARY ENGINEER'S ESTIMATE
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY PRICE QUANTITY PRICE
1 2021.501 MOBILIZATION LS $103,000.00 0.49 $50,000.00 0.51 $53,000.00
2 2101.524 CLEARING TREE $500.00 3 $1,500.00 0 $0.00
3 2101.524 GRUBBING TREE $500.00 3 $1,500.00 0 $0.00
4 2104.502 REMOVE SIGN TYPE C EACH $40.00 30 $1,200.00 6 $240.00
5 2104.503 SAWING CONCRETE PAVEMENT (FULL DEPTH) LF $4.75 200 $950.00 200 $950.00
6 2104.503 SAWING BITUMINOUS PAVEMENT (FULL DEPTH) LF $2.50 530 $1,325.00 340 $850.00
7 2104.503 REMOVE CURB & GUTTER LF $6.50 0 $0.00 0 $0.00
8 2104.503 REMOVE CURB & GUTTER (SPOT REPAIR)LF $16.00 1005 $16,080.00 100 $1,600.00
9 2104.504 REMOVE CONCRETE DRIVEWAY PAVEMENT SY $18.00 200 $3,600.00 0 $0.00
10 2104.504 REMOVE BITUMINOUS DRIVEWAY PAVEMENT SY $7.00 0 $0.00 0 $0.00
11 2105.607 HAUL EXCESS RECLAIM MATERIAL OFF SITE CY $17.50 2980 $52,150.00 3220 $56,350.00
12 2106.507 EXCAVATION - COMMON CY $13.00 0 $0.00 0 $0.00
13 2106.507 COMMON EMBANKMENT CY $5.00 0 $0.00 0 $0.00
14 2123.510 COMMON LABORERS HOUR $75.00 20 $1,500.00 20 $1,500.00
15 2123.610 STREET SWEEPER W/ PICKUP BROOM HOUR $150.00 10 $1,500.00 10 $1,500.00
16 2130.523 WATER MGAL $50.00 50 $2,500.00 50 $2,500.00
17 2215.504 FULL DEPTH RECLAMATION SY $1.25 21620 $27,025.00 19320 $24,150.00
18 2215.604 FINISH GRADING - STREET SY $1.25 21320 $26,650.00 19320 $24,150.00
19 2215.607 SALVAGE AND INSTALL RECLAIMED MATERIAL CY $11.00 0 $0.00 0 $0.00
20 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GAL $1.25 1495 $1,868.75 1355 $1,693.75
21 2360.509 TYPE SP 12.5 WEARING COURSE MIXTURE (3,C)TON $65.00 2985 $194,025.00 2740 $178,100.00
22 2360.509 TYPE SP 12.5 NON WEARING COURSE MIXTURE (3,C) TON $65.00 2985 $194,025.00 5480 $356,200.00
23 2502.503 6" PERF PVC PIPE DRAIN LF $25.00 0 $0.00 0 $0.00
24 2504.602 ADJUST VALVE BOX EACH $450.00 0 $0.00 3 $1,350.00
25 2504.602 IRRIGATION SYSTEM REPAIR EACH $800.00 4 $3,200.00 0 $0.00
26 2531.503 CONCRETE CURB AND GUTTER DESIGN B618 (SPOT REPAIR) LF $28.00 1005 $28,140.00 100 $2,800.00
27 2531.504 7" CONCRETE DRIVEWAY PAVEMENT SY $45.00 250 $11,250.00 0 $0.00
28 2563.601 TRAFFIC CONTROL LS $15,000.00 1 $15,000.00 1 $10,000.00
29 2564.518 SIGN PANELS TYPE C SF $45.00 147 $6,615.00 19 $855.00
30 2573.501 EROSION CONTROL SUPERVISOR LS $5,000.00 1 $5,000.00 1 $5,000.00
31 2573.501 STABILIZED CONSTRUCTION EXIT LS $3,250.00 1 $3,250.00 1 $3,250.00
32 2573.502 STORM DRAIN INLET PROTECTION EACH $200.00 42 $8,400.00 9 $1,800.00
33 2573.503 SEDIMENT CONTROL LOG TYPE STRAW LF $3.25 300 $975.00 100 $325.00
34 2573.503 SILT FENCE, TYPE MS LF $2.25 300 $675.00 1000 $2,250.00
35 2573.503 FLOTATION SILT CURTAIN - TYPE MOVING WATER LF $24.00 0 $0.00 100 $2,400.00
36 2574.507 TOPSOIL BORROW - TYPE SPECIAL CY $30.00 120 $3,600.00 10 $300.00
37 2574.508 FERTILIZER TYPE 3 LB $0.75 28 $21.00 100 $75.00
38 2575.505 SEEDING AC $200.00 1 $200.00 1 $200.00
39 2575.508 SEED MIXTURE 25-141 LB $7.00 9 $63.00 10 $70.00
40 2575.508 SEED MIXTURE 25-151 LB $3.75 0 $0.00 0 $0.00
41 2575.508 SEED MIXTURE 35-241 LB $20.00 0 $0.00 0 $0.00
42 2575.508 HYDRAULIC BONDED FIBER MATRIX LB $1.15 486 $558.90 1750 $2,012.50
43 2582.503 4" SOLID LINE - LATEX LF $0.40 3300 $1,320.00 8100 $3,240.00
44 2582.503 12" SOLID LINE - LATEX LF $2.00 200 $400.00 50 $100.00
45 2582.503 4" DOUBLE SOLID LINE - LATEX LF $1.25 5300 $6,625.00 4700 $5,875.00
46 2582.518 CROSSWALK BLOCKS - LATEX SF $3.00 666 $1,998.00 162 $486.00
47 2582.518 PAVEMENT MESSAGE - LATEX SF $7.00 355 $2,485.00 131 $917.00
$677,174.65 $746,089.25
$67,717.47 $74,608.93
$744,892.12 $820,698.18
$208,569.79 $229,795.49
$953,461.91 $1,050,493.66
REHAB AREA 1
175TH TO 173RD
165TH TO 160TH
REHAB AREA 2
173RD TO 165TH
PART 1: STREETS
28% INDIRECT
PROJECT TOTAL PART 1: STREETS
CONSTRUCTION SUBTOTAL PART 1: STREETS
10% CONTINGENCY
TOTAL CONSTRUCTION PART 1: STREETS
City of Lakeville, MN 1 of 3 Preliminary Engineer's Estimate
CITY OF LAKEVILLE
HIGHVIEW AVENUE - PRELIMINARY ENGINEER'S ESTIMATE
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY PRICE QUANTITY PRICE
REHAB AREA 1
175TH TO 173RD
165TH TO 160TH
REHAB AREA 2
173RD TO 165TH
49 2104.518 REMOVE BITUMINOUS/CONCRETE WALK SF $3.00 720 $2,160.00 240 $720.00
50 2521.618 CONCRETE PEDESTRIAN CURB RAMP SF $16.00 720 $11,520.00 240 $3,840.00
51 2531.618 TRUNCATED DOMES SF $53.00 144 $7,632.00 50 $2,650.00
$21,312.00 $7,210.00
$2,131.20 $721.00
$23,443.20 $7,931.00
$6,564.10 $2,220.68
$30,007.30 $10,151.68
52 2104.502 REMOVE CASTING (STORM)EACH $175.00 13 $2,275.00 1 $175.00
52 2104.502 REMOVE DRAINAGE STRUCTURE EACH $550.00 1 $550.00 1 $550.00
53 2104.502 REMOVE PIPE APRON EACH $375.00 0 $0.00 0 $0.00
54 2104.503 REMOVE SEWER PIPE (STORM)LF $18.00 16 $288.00 24 $432.00
55 2501.502 21" RC APRON EACH $3,000.00 0 $0.00 0 $0.00
56 2503.503 12" RC PIPE SEWER CLASS V LF $51.00 8 $408.00 16 $816.00
57 2503.503 15" RC PIPE SEWER CLASS V LF $54.00 8 $432.00 8 $432.00
58 2503.503 18" RC PIPE SEWER CLASS V LF $59.00 0 $0.00 0 $0.00
59 2503.503 21" RC PIPE SEWER CLASS IV LF $66.00 0 $0.00 0 $0.00
60 2503.602 CONNECT TO EXISTING PIPE - STORM SEWER EACH $1,000.00 2 $2,000.00 3 $3,000.00
61 2503.602 CONNECT TO EXISTING STRUCTURE - STORM SEWER EACH $1,500.00 0 $0.00 0 $0.00
62 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 27" ROUND EACH $2,000.00 0 $0.00 0 $0.00
63 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN SPECIAL 2'X3' EACH $2,300.00 1 $2,300.00 0 $0.00
64 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 EACH $3,500.00 0 $0.00 1 $3,500.00
65 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 EACH $5,500.00 0 $0.00 0 $0.00
66 2506.602 ADJUST CATCH BASIN FRAME AND RING CASTING (STORM) EACH $450.00 22 $9,900.00 2 $900.00
67 2506.602 ADJUST MANHOLE FRAME AND RING CASTING WITH INFI-SHIELD (STORM) EACH $800.00 1 $800.00 0 $0.00
68 2506.602 REPAIR DRAINAGE STRUCTURE EACH $350.00 17 $5,950.00 2 $700.00
69 2506.602 CASTING ASSEMBLY R-1642 (STORM)EACH $925.00 0 $0.00 1 $925.00
70 2506.602 CASTING ASSEMBLY R-3067 (STORM)EACH $925.00 13 $12,025.00 0 $0.00
71 2506.603 RECONSTRUCT STORM MANHOLE LF $450.00 13 $5,850.00 4 $1,800.00
72 2511.507 INSTALL RIP RAP CLASS III CY $120.00 30 $3,600.00 90 $10,800.00
$46,378.00 $24,030.00
$4,637.80 $2,403.00
$51,015.80 $26,433.00
$14,284.42 $7,401.24
$65,300.22 $33,834.24
PART 3: STORM SEWER
PART 2: PEDESTRIAN RAMPS
CONSTRUCTION SUBTOTAL PART 2: PEDESTRIAN RAMPS
10% CONTINGENCY
TOTAL CONSTRUCTION PART 2: PEDESTRIAN RAMPS
CONSTRUCTION SUBTOTAL PART 3: STORM SEWER
10% CONTINGENCY
TOTAL CONSTRUCTION PART 3: STORM SEWER
28% INDIRECT
PROJECT TOTAL PART 2: PEDESTRIAN RAMPS
28% INDIRECT
PROJECT TOTAL PART 3: STORM SEWER
City of Lakeville, MN 2 of 3 Preliminary Engineer's Estimate
CITY OF LAKEVILLE
HIGHVIEW AVENUE - PRELIMINARY ENGINEER'S ESTIMATE
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY PRICE QUANTITY PRICE
REHAB AREA 1
175TH TO 173RD
165TH TO 160TH
REHAB AREA 2
173RD TO 165TH
73 2504.602 REBOLT 6" GATE VALVE EACH $2,750.00 1 $2,750.00 0 $0.00
74 2504.602 REBOLT 8" GATE VALVE EACH $3,000.00 0 $0.00 3 $9,000.00
75 2504.602 REBOLT 12" BUTTERFLY VALVE EACH $3,000.00 1 $3,000.00 5 $15,000.00
76 2504.602 REBOLT HYDRANT EACH $2,750.00 1 $2,750.00 1 $2,750.00
77 2504.602 ANODE BAG EACH $450.00 3 $1,350.00 9 $4,050.00
78 2504.602 INSTALL 6" GATE VALVE EACH $2,400.00 0 $0.00 1 $2,400.00
79 2506.602 ADJUST FRAME AND RING CASTING WITH INFI-SHIELD (SANITARY) EACH $800.00 2 $1,600.00 0 $0.00
80 2506.602 ADJUST GATE VALVE EACH $400.00 4 $1,600.00 6 $2,400.00
81 2506.603 RECONSTRUCT SANITARY MANHOLE LF $450.00 3 $1,350.00 0 $0.00
$14,400.00 $35,600.00
$1,440.00 $3,560.00
$15,840.00 $39,160.00
$4,435.20 $10,964.80
$20,275.20 $50,124.80
CONSTRUCTION SUBTOTAL:$759,264.65 $812,929.25
10% CONTINGENCY:$75,926.47 $81,292.93
CONSTRUCTION TOTAL:$835,191.12 $894,222.18
28% INDIRECT:$233,853.51 $250,382.21
TOTAL ESTIMATED CONSTRUCTION COST $1,069,044.63 $1,144,604.38
28% INDIRECT
PROJECT TOTAL PART 4: WATER & SANITARY SEWER
$2,213,649.01
$484,235.72
$1,729,413.29
$157,219.39
$1,572,193.90
PROJECT TOTAL:
PART 4: WATER & SANITARY SEWER
10% CONTINGENCY
TOTAL CONSTRUCTION PART 4: WATER & SANITARY SEWER
CONSTRUCTION SUBTOTAL PART 4: WATER & SANITARY SEWER
City of Lakeville, MN 3 of 3 Preliminary Engineer's Estimate
CITY OF LAKEVILLE
HIGHVIEW AVENUE - POTENTIAL RURAL TO URBAN CONVERSION: AREA 2
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY Price
1 2021.501 MOBILIZATION LS $91,000.00 1 $91,000.00
2 2101.524 CLEARING TREE $500.00 6 $3,000.00
3 2101.524 GRUBBING TREE $500.00 6 $3,000.00
4 2104.502 REMOVE SIGN TYPE C EACH $40.00 6 $240.00
5 2104.503 SAWING CONCRETE PAVEMENT (FULL DEPTH)LF $4.75 200 $950.00
6 2104.503 SAWING BITUMINOUS PAVEMENT (FULL DEPTH)LF $2.50 340 $850.00
7 2104.503 REMOVE CURB & GUTTER LF $6.50 230 $1,495.00
8 2104.503 REMOVE CURB & GUTTER (SPOT REPAIR)LF $16.00 $0.00
9 2104.504 REMOVE CONCRETE DRIVEWAY PAVEMENT SY $18.00 0 $0.00
10 2104.504 REMOVE BITUMINOUS DRIVEWAY PAVEMENT SY $7.00 0 $0.00
11 2105.607 HAUL EXCESS RECLAIM MATERIAL OFF SITE CY $17.50 0 $0.00
12 2106.507 EXCAVATION - COMMON CY $13.00 3195 $41,535.00
13 2106.507 COMMON EMBANKMENT CY $5.00 1400 $7,000.00
14 2123.51 COMMON LABORERS HOUR $75.00 40 $3,000.00
15 2123.61 STREET SWEEPER W/ PICKUP BROOM HOUR $150.00 10 $1,500.00
16 2130.523 WATER MGAL $50.00 50 $2,500.00
17 2215.504 FULL DEPTH RECLAMATION SY $1.25 19320 $24,150.00
18 2215.604 FINISH GRADING - STREET SY $1.25 18105 $22,631.25
19 2215.607 SALVAGE AND INSTALL RECLAIMED MATERIAL CY $11.00 2645 $29,095.00
20 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GAL $1.25 1270 $1,587.50
21 2360.509 TYPE SP 12.5 WEARING COURSE MIXTURE (3,C)TON $65.00 2570 $167,050.00
22 2360.509 TYPE SP 12.5 NON WEARING COURSE MIXTURE (3,C)TON $65.00 5140 $334,100.00
23 2502.503 6" PERF PVC PIPE DRAIN LF $25.00 1100 $27,500.00
24 2504.602 ADJUST VALVE BOX EACH $450.00 3 $1,350.00
25 2504.602 IRRIGATION SYSTEM REPAIR EACH $800.00 4 $3,200.00
26 2531.503 CONCRETE CURB AND GUTTER DESIGN B618 (SPOT REPAIR)LF $28.00 $0.00
27 2531.504 7" CONCRETE DRIVEWAY PAVEMENT SY $45.00 0 $0.00
28 2563.601 TRAFFIC CONTROL LS $15,000.00 1 $15,000.00
29 2564.518 SIGN PANELS TYPE C SF $45.00 19 $855.00
30 2573.501 EROSION CONTROL SUPERVISOR LS $5,000.00 1 $5,000.00
31 2573.501 STABILIZED CONSTRUCTION EXIT LS $3,250.00 1 $3,250.00
32 2573.502 STORM DRAIN INLET PROTECTION EACH $200.00 37 $7,400.00
33 2573.503 SEDIMENT CONTROL LOG TYPE STRAW LF $3.25 800 $2,600.00
34 2573.503 SILT FENCE, TYPE MS LF $2.25 7000 $15,750.00
35 2573.503 FLOTATION SILT CURTAIN - TYPE MOVING WATER LF $24.00 100 $2,400.00
36 2574.507 TOPSOIL BORROW - TYPE SPECIAL CY $30.00 1164 $34,920.00
37 2574.508 FERTILIZER TYPE 3 LB $0.75 438 $328.50
38 2575.505 SEEDING AC $200.00 3 $600.00
39 2575.508 SEED MIXTURE 25-141 LB $7.00 129 $903.00
40 2575.508 SEED MIXTURE 25-151 LB $3.75 0 $0.00
41 2575.508 SEED MIXTURE 35-241 LB $20.00 0 $0.00
42 2575.508 HYDRAULIC BONDED FIBER MATRIX LB $1.15 7655 $8,803.25
43 2582.503 4" SOLID LINE - LATEX LF $0.40 8100 $3,240.00
44 2582.503 12" SOLID LINE - LATEX LF $2.00 50 $100.00
45 2582.503 4" DOUBLE SOLID LINE - LATEX LF $1.25 4700 $5,875.00
46 2582.518 CROSSWALK BLOCKS - LATEX SF $3.00 162 $486.00
47 2582.518 PAVEMENT MESSAGE - LATEX SF $7.00 131 $917.00
$875,161.50
$87,516.15
$962,677.65
$269,549.74
$1,232,227.39PROJECT TOTAL PART 1: STREETS
REHAB AREA 2
173RD TO 165TH
URBANIZED ESTIMATE
28% INDIRECT
PART 1: STREETS
CONSTRUCTION SUBTOTAL PART 1: STREETS
10% CONTINGENCY
TOTAL CONSTRUCTION PART 1: STREETS
City of Lakeville, MN 1 Estimate - Potential Rural to Urban Conversion
CITY OF LAKEVILLE
HIGHVIEW AVENUE - POTENTIAL RURAL TO URBAN CONVERSION: AREA 2
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY Price
REHAB AREA 2
173RD TO 165TH
URBANIZED ESTIMATE
48 2531.503 CONCRETE CURB AND GUTTER DESIGN B618 LF $14.00 7935 $111,090.00
$111,090.00
$11,109.00
$122,199.00
$34,215.72
$156,414.72
49 2104.518 REMOVE BITUMINOUS/CONCRETE WALK SF $3.00 240 $720.00
50 2521.618 CONCRETE PEDESTRIAN CURB RAMP SF $16.00 240 $3,840.00
51 2531.618 TRUNCATED DOMES SF $53.00 50 $2,650.00
$7,210.00
$721.00
$7,931.00
$2,220.68
$10,151.68
52 2104.502 REMOVE CASTING (STORM)EACH $175.00 1 $175.00
52 2104.502 REMOVE DRAINAGE STRUCTURE EACH $550.00 2 $1,100.00
53 2104.502 REMOVE PIPE APRON EACH $375.00 1 $375.00
54 2104.503 REMOVE SEWER PIPE (STORM)LF $18.00 24 $432.00
55 2501.502 21" RC APRON EACH $3,000.00 2 $6,000.00
56 2503.503 12" RC PIPE SEWER CLASS V LF $51.00 1400 $71,400.00
57 2503.503 15" RC PIPE SEWER CLASS V LF $54.00 1060 $57,240.00
58 2503.503 18" RC PIPE SEWER CLASS V LF $59.00 1080 $63,720.00
59 2503.503 21" RC PIPE SEWER CLASS IV LF $66.00 655 $43,230.00
60 2503.602 CONNECT TO EXISTING PIPE - STORM SEWER EACH $1,000.00 4 $4,000.00
61 2503.602 CONNECT TO EXISTING STRUCTURE - STORM SEWER EACH $1,500.00 $0.00
62 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 27" ROUND EACH $2,000.00 6 $12,000.00
63 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN SPECIAL 2'X3'EACH $2,300.00 16 $36,800.00
64 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 EACH $3,500.00 15 $52,500.00
65 2506.502 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 EACH $5,500.00 1 $5,500.00
66 2506.602 ADJUST CATCH BASIN FRAME AND RING CASTING (STORM)EACH $450.00 2 $900.00
67 2506.602 ADJUST MANHOLE FRAME AND RING CASTING WITH INFI-SHIELD (STORM)EACH $800.00 $0.00
68 2506.602 REPAIR DRAINAGE STRUCTURE EACH $350.00 2 $700.00
69 2506.602 CASTING ASSEMBLY R-1642 (STORM)EACH $925.00 1 $925.00
70 2506.602 CASTING ASSEMBLY R-3067 (STORM)EACH $925.00 $0.00
71 2506.603 RECONSTRUCT STORM MANHOLE LF $450.00 4 $1,800.00
72 2511.507 INSTALL RIP RAP CLASS III CY $120.00 90 $10,800.00
$369,597.00
$36,959.70
$406,556.70
$113,835.88
$520,392.58
PROJECT TOTAL PART 2: PEDESTRIAN RAMPS
PART 4: STORM SEWER
CONSTRUCTION SUBTOTAL PART 3: STORM SEWER
10% CONTINGENCY
TOTAL CONSTRUCTION PART 3: STORM SEWER
28% INDIRECT
PROJECT TOTAL PART 3: STORM SEWER
28% INDIRECT
PART 2: NEW CURB AND GUTTER
CONSTRUCTION SUBTOTAL PART 2: NEW CURB AND GUTTER
10% CONTINGENCY
TOTAL CONSTRUCTION PART 2: NEW CURB AND GUTTER
28% INDIRECT
PROJECT TOTAL PART 2: NEW CURB AND GUTTER
PART 3: PEDESTRIAN RAMPS
CONSTRUCTION SUBTOTAL PART 2: PEDESTRIAN RAMPS
10% CONTINGENCY
TOTAL CONSTRUCTION PART 2: PEDESTRIAN RAMPS
City of Lakeville, MN 2 Estimate - Potential Rural to Urban Conversion
CITY OF LAKEVILLE
HIGHVIEW AVENUE - POTENTIAL RURAL TO URBAN CONVERSION: AREA 2
CITY PROJECT 21-03
BMI PROJECT NO. T18.122617
DATE: 10/12/20
ITEM
NO.
MNDOT
SPEC.NO DESCRIPTION UNIT UNIT COST QUANTITY Price
REHAB AREA 2
173RD TO 165TH
URBANIZED ESTIMATE
73 2504.602 REBOLT 6" GATE VALVE EACH $2,750.00 $0.00
74 2504.602 REBOLT 8" GATE VALVE EACH $3,000.00 3 $9,000.00
75 2504.602 REBOLT 12" BUTTERFLY VALVE EACH $3,000.00 5 $15,000.00
76 2504.602 REBOLT HYDRANT EACH $2,750.00 1 $2,750.00
77 2504.602 ANODE BAG EACH $450.00 9 $4,050.00
78 2504.602 INSTALL 6" GATE VALVE EACH $2,400.00 1 $2,400.00
79 2506.602 ADJUST FRAME AND RING CASTING WITH INFI-SHIELD (SANITARY)EACH $800.00 0 $0.00
80 2506.602 ADJUST GATE VALVE EACH $400.00 6 $2,400.00
81 2506.603 RECONSTRUCT SANITARY MANHOLE LF $450.00 0 $0.00
$35,600.00
$3,560.00
$39,160.00
$10,964.80
$50,124.80
CONSTRUCTION SUBTOTAL:
10% CONTINGENCY:
CONSTRUCTION TOTAL:
28% INDIRECT:
TOTAL ESTIMATED CONSTRUCTION COST
PROJECT TOTAL PART 4: WATER & SANITARY SEWER
$1,398,658.50
$139,865.85
$1,538,524.35
$430,786.82
$1,969,311.17
28% INDIRECT
PART 5: WATER & SANITARY SEWER
CONSTRUCTION SUBTOTAL PART 4: WATER & SANITARY SEWER
10% CONTINGENCY
TOTAL CONSTRUCTION PART 4: WATER & SANITARY SEWER
City of Lakeville, MN 3 Estimate - Potential Rural to Urban Conversion
Appendix C: Special Assessment Policy
SPECIAL ASSESSMENT POLICY RELATING TO THE REHABILITATION OF ROADWAYS
Policy 5.14
1) PURPOSE
a) The City of Lakeville, Minnesota finds that it is in the best interest of the City to
outline the policy and procedures for calculating the special assessments to
benefitting properties using the 429 Special Assessment Process.
b) The policy shall apply to the rehabilitation of roadways with existing paved surfaces.
2) OBJECTIVE
a) The City currently utilizes the 429 Special Assessment Process to fund a portion of
the costs associated with the rehabilitation of roadways within the City. This policy
is intended to:
i) Define the share of improvement costs to be specially assessed to benefitting
properties
ii) Identify the method(s) for calculating the assessments
iii) Identify the improvement types for which special assessments will be levied
iv) Identify the assessment period for the specified improvement type
3) GENERAL
a) Minnesota Statutes Chapter 429 gives cities the authority to levy special
assessments for public improvement projects to the benefitting property owners.
4) IMPROVEMENT COSTS TO BE SPECIALLY ASSESSED TO BENEFITTED PROPERTIES.
a) It is the policy of the City to special assesses benefiting property for street
reconstruction including mill and overlay costs in neighborhoods where the
majority of the streets have deteriorated to the extent whereby it is no longer
cost effective to provide routine maintenance.
b) The special assessments will not be in excess of the benefit to the property. This
policy applies to all streets that are public streets.
c) Benefited properties shall be assessed 40% of the project costs, as
calculated using the contract bid prices for the project.
d) For the purposes of street reconstruction or mill and overlay, the project
costs will include the cost of replacing or repairing concrete curb and gutter.
In those cases where bituminous curbing is replaced with concrete curb and
gutter, or where curb and gutter did not previously exist, the additional
benefit will be assessed. The cost to be assessed shall be 100% of the cost of
installing the concrete curb and gutter. This cost will be assessed on either
a front foot or per lot basis. In areas where no storm sewer currently exists,
the addition of a storm sewer system will also be considered an additional
benefit and shall be assessed at 100% of the cost.
e) Project cost includes both direct construction costs and all indirect costs
such as engineering, financing and administration.
f) Assessments for properties guided or zoned for single-family use shall be
made on a per parcel (unit) basis. A property may be assessed for more
than one unit in cases where the property could be reasonably further
subdivided in accordance with current zoning and subdivision requirement.
g) The City recognizes that various housing types typically do not carry the
same number of persons (due to their respective densities) or generate the
same amount of wear on the streets. Therefore, the following table outlines
the cost allocation to be assessed per project:
Land use Factor
Single family and detached townhomes 1.00
Duplexes 0.50
Town homes 0.50
Apartments 0.25
h) Along major collector and arterial roadways, the Single Family Unit Rate
shall be prorated to reflect the City’s typical 40-foot minor collector street
section.
i) If a street is reconstructed to a design standard greater than the current
design standard due to the actual or zoned uses, the additional cost to
reconstruct the street shall be fully assessed to those properties. If the
street is reconstructed to a design different than the current standard, the
total cost shall be fully assessed to those properties if conditions warrant.
j) Properties abutting county roadways reconstructed to complete urban
design and having reasonable access thereto shall be assessed in accordance
with this policy. The assessments shall be used to defray the City’s cost
participation in the county improvement projects.
k) Properties or areas of property that have been determined to be
unbuildable shall be excluded from assessments. No building permits will
be issued for such property so deleted from assessments.
l) Senior Citizens and Disabled People Special Assessments Deferrals are
available in accordance with City policy. Other deferrals may be available as
authorized by State Statute, Section 429.
m) City will not special assess the cost of routine maintenance such as
sealcoating, crack sealing or minor patching.
n) Commercial and Industrial
(1) The method for calculating the special assessments for commercial and
industrial properties shall be on a front foot basis, unless it is otherwise
determined by the City Council.
(2) The front foot unit assessment rate will be based on the average cost per
foot of assessable roadway improvements
(3) At the City Council’s discretion, assessments may also be calculated using
the same methodology as the predominant surrounding land use and/or
zoning of the area.
a. For properties used or zoned for other than residential use,
the Assessable Units will be calculated by multiplying the
number of front feet by 1.5 (because streets and roadways
adjacent to non-residential uses are typically constructed to
higher standards) and divided by the minimum required lot
width based on the lot requirements for the predominant
single-family zoning in the area.
o) Institutional and Public Properties
(1) The method for calculating the special assessments for these properties
shall be the same methodology as the predominant surrounding land use
and/or zoning of the area, unless it is otherwise determined by the City
Council.
(2) At the City Council’s discretion, assessments may also be calculated on a
front foot basis.
p) Mixed Use Areas
(1) The method for calculating the special assessments in these areas shall be
the same methodology as the predominant surrounding land use and/or
zoning of the area, unless it is otherwise determined by the City Council.
a. For properties used or zoned for commercial or industrial
use, the Assessable Units will be calculated by multiplying the
number of front feet by 1.5 (because streets and roadways
adjacent to non-residential uses are typically constructed to
higher standards) and divided by the minimum required lot
width based on the lot requirements for the predominant
single-family zoning in the area.
(2) At the City Council’s discretion, assessments may also be calculated on a
front foot basis.
q) Agricultural land. Agricultural properties, regardless of the number of individual
tax parcels, shall be assessed residential units commensurate with the number of
users for the agricultural land (i.e. If there is one residential building structure
for multiple adjacent agricultural tax parcels under the same ownership, only
one residential unit assessment shall be levied, and it shall be levied against the
parcel containing the building structure
5) SPECIAL ASSESSMENT TERMS
a) As established by the City Council, but typically:
(1) Reconstruction = 10 to 20-years
(2) Mill and Overlay = 10-years
Appendix D: Geotechnical Evaluation Report
HIGHVIEW AVENUESteve MichaudPark Cons. Area
Woodbury
Conservation Area
WoodburyConservationArea FoxboroughParkFoxboroughConservationArea
CherryviewConservationArea
H y p o i n t eCrossingPark
HighviewHeights Park
HAWT HORN PATH
HARRI
NGTON WAY169TH ST W HARMONY PATHH U R O N PATHHAVELOCKCT
HUDSON CT
HARDING LN
HYLAND CIR
H
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OC
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CT 166TH CT WHOL L Y H O C K C T
HILLSIDECT
HOMINY CIR
HUTCHINSONCTHAYES AVEHOPEWELLCT
173RD CIR WHYACINTH CT HARWELL CTINTERLACHE N B L V D
HONEYSUCKLEAVEHIBISCUSAVEGUNFLINT CT173RD S T W
174TH ST W
172ND ST WIVYWOODCT
HICKORY CT
IBERIA AVEHUTCHINSONDRHURONCTG R I F F ON TRL
HARVARD LN
HARBOR CTHEARTH S IDECTHOLBROOKCTGRIFFONCT173RD S T W
174TH ST W GRINNELLWAYHARMON
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PATHHAYWOOD CTHAMILTON CTHYLANDCTHAVELOCKWAY
HANNIBAL CTIMPATIENSCTHEATHCTH
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1 6 3RD ST W
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ERLACHENCT1 6 5TH S T W
HEMLOCKCTHURONPATH
1 6 9 THCTW HARVARDCTHOUSTONAVEHUDSONAVE
HUNTINGTON PAT HGUNFLINTC I R
HAYESAVE1 6 8 T H S TW
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HALLMARKPATHHALIFAXPATHGRIFFON TRL
HARMONY TRLHOMINYCTHARDINGLNH A RVA R D D R
H
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LLAVE
166TH ST WHAVELOCKWAY
174TH ST WIRONWOODCIR
GRINNELLAVE
HYLAND AVE HURONC I R
169TH S T W
HASEL CT GROVETRLHOLLAND AVEHOM E S T E A D TRL
170TH ST WHUBBARDTRL
172ND ST W
H
O
MINYPA
T
H GOODVI
EWWAY
G RIFFON LNINVERNESSWAY
175TH ST W
HARRINGTO
N
WAYH AMILTONDRHORIZONBLVDHORSESHOE WAY
HAMILTON DRHAWTHORNPATHHEARTHSIDE WAY
HOL B ROOKAVE
160TH ST W456746
Project Area
0 500 1,000250Feet
Highview Aven ueImprovements²