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HomeMy WebLinkAboutItem 06.l Date: Item No. RESOLUTION ORDERING PREPARATION OF A FEASIBILITY REPORT FOR HIGHVIEW AVENUE IMPROVEMENTS AND PROPOSAL FROM BOLTON & MENK FOR PROFESSIONAL SERVICES Proposed Action Staff recommends adoption of the following motion: Move to approve a resolution ordering preparation of an engineering feasibility report for Highview Avenue Improvements, City Project 21-03; and accept Bolton & Menk proposal for professional services. Overview The draft 2021-2025 Transportation Capital Improvement Plan programs the rehabilitation of Highview Avenue from 175th Street to County State Aid Highway (CSAH) 46 (160th Street) in 2021. Proposed improvements include roadway rehabilitation, spot curb and gutter replacement and minor public utility maintenance. The engineering feasibility report will include an analysis of roadway widening, concrete curb and gutter, and stormwater infrastructure improvements between 172nd Street and 165th Street. The estimated total project cost is $2,084,640. Proposed financing for the Highview Avenue Improvements is through bonds issued under Minnesota Statutes, Chapter 429, for local improvements. A portion of the total project cost would be assessed to benefitting property owners abutting Highview Avenue within the proposed construction limits. An engineering feasibility report is required under Minnesota Statutes, Chapter 429 prior to adopting a resolution ordering the improvement. Primary Issues to Consider • Bolton & Menk’s proposal identifies the scope of services and estimated cost to prepare the feasibility report and preliminary design and is subject to the Master Agreement for Professional Engineering Services between the City and Bolton & Menk approved by the City Council on July 18, 2016. Supporting Information • Bolton & Menk proposal dated August 26, 2020; and Project Location Map Financial Impact: $91,450 Budgeted: Y☒ N☐ Source: Multiple Sources Related Documents: Draft Lakeville 5-year Capital Improvement Plan (2021-2025) Envision Lakeville Community Values: Design that Connects the Community Report Completed by: Christina Orlowsky, Project Engineer September 8, 2020 CITY OF LAKEVILLE RESOLUTION NO. 20-__ RESOLUTION ORDERING PREPARATION OF FEASIBILITY REPORT FOR HIGHVIEW AVENUE IMPROVEMENTS 175TH STREET TO COUNTY STATE AID HIGHWAY 46 (160TH STREET) WHEREAS, Highview Avenue located between 175th Street and County State Aid Highway (CSAH) 46 (160th Street) is programmed to be rehabilitated in the City’s draft 2021- 2025 Capital Improvement Plan; and WHEREAS, the City of Lakeville wishes to finance a portion of the project through special assessments; and WHEREAS, an engineering feasibility report is required under Minnesota Statutes, Chapter 429 for this proposed local improvement. NOW, THEREFORE, BE IT RESOLVED, by the City Council of the City of Lakeville, that the City Engineer is hereby authorized to prepare an engineering feasibility report for Highview Avenue Improvements, City Project 21-03, advising the City Council in a preliminary way as to whether the proposed improvement is necessary, cost-effective, and feasible; whether it should be best made as proposed or in connection with some other improvement; the estimated cost of the improvement as recommended; and a description of the methodology used to calculate individual assessments for the affected parcel(s). ADOPTED by the Lakeville City Council this 8th day of September 2020. ______________________________ Douglas P. Anderson, Mayor _________________________________ Charlene Friedges, City Clerk N:\Proposals\Lakeville\2021 Highview Avenue\Proposal Letter.docx August 26, 2020 Christina Orlowsky, PE Project Engineer City of Lakeville 20195 Holyoke Avenue Lakeville, MN 55044 Re: Proposal for Professional Engineering Services Highview Avenue Improvements – Topographic Survey, Preliminary Design & Feasibility Report Dear Ms. Orlowsky: Thank you for the opportunity to submit this proposal to complete preliminary engineering services for Highview Avenue from 175th Street to 160th Street (County Road 46) as shown in the enclosed project location map. Approximately half of the project area will consist of pavement reclamation, spot curb and utility improvements, and new bituminous pavement. A geotechnical exploration will further define whether these areas would benefit from a mill and overlay in lieu of pavement reclamation. The other half of the project area will include pavement reclamation, widening, new storm sewer, new curb and gutter, and paving. The preliminary engineering included in the scope below will further define the necessary grading limits, wetland and floodplain impacts, and storm sewer improvements necessary to facilitate the widening and new urban section. Based on our discussions with City staff, we have assembled the work plan below that will help develop the project scope, pavement design, typical roadway section, utility improvements, and stormwater improvements. Our work plan also includes the development of a Feasibility Report that includes the Opinion of Probable Cost, draft Assessment Rate, and draft Assessment Role. We will also support the City’s efforts in property owner communication and engagement through the feasibility phase of the project. Topographic Survey Work under this task includes gathering pertinent field information on city infrastructure, adjacent buildings, right-of-way, contours, and private small utilities. Underground utility information will be located and described per available as-builts, field markings, and private utility map information facilitated through Gopher State One Call. Manhole reports will also be completed for located manholes and catch basins. Right-of-way and property lines will be illustrated based on found field monumentation and plat information received from the city. Below is a breakdown of survey tasks by anticipated project area: Reclamation / Mill & Overlay Areas (0.83 Miles) • Field Topo Survey (Utility & Curb Shots) • GSOC (Mapping) • Existing Conditions Drafting Name: Christina Orlowsky, PE Date: August 26, 2020 Page: 2 N:\Proposals\Lakeville\2021 Highview Avenue\Proposal Letter.docx Rural to Urban Area, 172nd to 165th (0.75 Miles) •Field Topo Survey (Typical Cross Section Survey) •GSOC (Field Marks) •Horizontal Control •Vertical Control •Structure Reports •Existing Conditions Drafting •Right-of-Way Determination Geotechnical Engineering The scope of roadway improvements will depend on the quality of in-place soils, aggregates, and pavements. Braun Intertec will perform the field work, analysis, and pavement recommendation in accordance with their enclosed proposal to Bolton & Menk. Their work will include an emphasis on understanding the existing aggregate base composition (gradation, quality, material makeup) and its suitability for reclamation. Additionally, Braun’s scope of work includes soil investigation in the widening areas near North Creek where poor soils are likely. Refer to the enclosed proposal for a full description of the proposed geotechnical services. Wetland Delineation We will visit the site to delineate all aquatic resource boundaries within the designated study areas. The delineation will include performing transects and sampling in the vicinity of those wetlands, placing 3-foot pin flags at the limits of any wetlands found. Our delineator will use a sub-meter GPS unit to accurately locate and map each. Bolton & Menk will use the aquatic resource delineation in combination the preliminary road design to determine whether permanent wetland impacts are likely. A final determination of wetland impacts and necessary wetland permitting would occur during final design. A description of necessary wetland coordination will be included in the feasibility report. Preliminary Stormwater Management Design The urban transformation area of Highview Avenue will result in conversion of the current rural section with roadside ditches for stormwater conveyance to an urban section managed by curb and gutter and storm sewer. The increase in impervious area and addition of curb and gutter will necessitate the installation and extension of storm sewer. While early estimates do not show the addition of more than one acre of new impervious area, conversion of the corridor from rural to urban may require an investigation of existing and proposed runoff rates. An urban section includes an efficient conveyance of stormwater through catch basin inlets and pipe, which often results in higher rates of runoff when the drainage area’s natural ditch storage is removed. The feasibility assessment will include potential options for regional rate control. If the City wishes to include water quality in regional stormwater management, there may be cost share or grant opportunities with Vermilion River Joint Powers Organization (VRJPO). The feasibility report will also analyze the impact of maintaining a rural road section with ditches. It is anticipated that this option would result in a lower discharge rate than the urban condition, but an assessment should be performed as a comparison. Name: Christina Orlowsky, PE Date: August 26, 2020 Page: 3 N:\Proposals\Lakeville\2021 Highview Avenue\Proposal Letter.docx Bolton & Menk understands that there are two culverts that discharge under the existing trail that have resulted in substantial erosion over time. We will include these culverts in our assessment to understand the erosive velocities and propose solutions to mitigate erosion. This is another opportunity to partner with VRJPO to improve site conditions and reduce sediment discharge to North Creek. Highview Avenue crosses North Creek, which is a FEMA designated special flood hazard area. North Creek is currently designated as Zone AE, with a defined floodway. This means that any fill in the floodway will need to be assessed to ensure that the roadway construction does not result in an increase in flood elevation. The City may need to consider a letter of map revision (LOMR) should the project result in a change in the floodplain or base flood elevation. Bolton & Menk will assess potential fill in the floodway as part of the feasibility study and describe the required mitigation efforts and potential FEMA coordination. Work under this task will bring the project’s stormwater components to a 30% design level and will include the following subtasks: •Review existing drainage system and download digital data •Delineate “Existing Conditions” watersheds •Develop “Existing Conditions” hydraulic model •Modify drainage areas for “Proposed Conditions” •Develop “Proposed Conditions” hydraulic model •Develop proposed storm sewer layout including an assessment of gutter spread •Review a widened, rural roadway section. Ditch enhancements, culvert upsizing and regional rate control will be addressed. •Identify stormwater discharge rate increases and the potential area required to mitigate increases in discharge. •Identify potential opportunities to enhance stormwater features to improve water quality and identify funding opportunities. •Assess potential impacts to the North Creek Floodplain, establish a plan for mitigating any increases in base flood elevation and identify FEMA coordination needs. Preliminary Road Design & Feasibility Report A 2D layout drawn in AutoCAD Civil 3D 2019 will be created to show the proposed utility, street, and stormwater improvements. After a final layout has been approved by City staff, an Opinion of Probable Cost will be developed for use in the feasibility report. Subtasks include: •Develop preliminary base drawing showing curbs, pavement, water and sanitary sewer improvements, stormwater improvements, and approximate construction limits •Submit base drawing to City for review and comment •Finalize 2D layout •Develop Opinion of Probable Construction Cost A Feasibility Report is required by Minnesota Statutes Chapter 429 when special assessments are utilized by the City as a funding mechanism. As such, we will prepare a Feasibility Report outlining the proposed improvements, properties to be specially assessed, and proposed assessment rate in accordance with the City of Lakeville’s Assessment Policy. Subtasks include: Name: Christina Orlowsky, PE Date: August 26, 2020 Page: 4 N:\Proposals\Lakeville\2021 Highview Avenue\Proposal Letter.docx • Prepare draft Assessment Rate per Assessment Policy • Prepare draft Assessment Roll • Develop Maps to Illustrate Assessable Properties • Submit draft Feasibility Report to City for review and comment • Finalize Feasibility Report Meetings & Public Outreach and Engagement We anticipate that Lakeville staff will lead the stakeholder outreach effort. Bolton & Menk will support the City’s communication efforts by providing cost estimates, figures, and design information. Schedule We are committed to following a Project Schedule that meets and exceeds the City’s expectations. Based on our discussions with City staff we anticipate following the schedule below. City Council Authorizes Preparation of Feasibility Report September 8, 2020 Bolton & Menk Contract Authorization September 8, 2020 Topographic Survey & Existing Conditions Drafting September 2020 Wetland Delineation September 2020 Geotechnical Investigation September 2020 Preparation of Feasibility Report October 2020 City Council Receives Feasibility Report, Orders Improvement Hearing October 19, 2020 City Council Holds Improvement Hearing, Orders Project November 16, 2020 Name: Christina Orlowsky, PE Date: August 26, 2020 Page: 5 N:\Proposals\Lakeville\2021 Highview Avenue\Proposal Letter.docx Proposed Fee $91,450 In accordance with the City of Lakeville’s project requirements, Bolton & Menk proposes to complete the scope of work as described above for a not-to-exceed hourly fee of $91,450. Thank you, again, for inviting Bolton & Menk to offer you this proposal, as well as your continued consideration of our services to the City of Lakeville. We look forward to working with you and the City on this project. If you have any questions regarding our proposal, please do not hesitate to call us. Sincerely, Bolton & Menk, Inc. Eric Seaburg, P.E. Project Manager Brian Hilgardner, P.E. Principal Enclosures: Project Location Map Detailed Fee Estimate Fee Summary Braun Intertec Geotechnical Engineering Proposal Douglas P. Anderson Mayor, City of Lakeville Charlene Friedges City Clerk, City of Lakeville © 2020 Microsoft Corporation © 2020 Maxar ©CNES (2020) Distribution Airbus DS 175th Street1 7 2nd S t r e e t 173 rd S t re e t Highview AvenueHolybrook TrailDodd B lvd (CR 9)168th S t ree tInterl ac h e n Bl v d Hearthside Way165th StreetGriffon TrailHillsboro Ct Hawthorn Path Ho m i n y C tHominy Path160th Street (CR 46)Nor th C re e k Highview Avenue (CITY OF APPLE VALLEY)N:\Proposals\Lakeville\2021 Highview Avenue\Location Map.dwg 8/26/2020 12:29:24 PMR 2021 Highview Avenue Improvements Lakeville, MN Location Map August 2020 LEGEND PAVEMENT REHABILITATION - 0.83 MIILES WIDENING WITH CURB AND GUTTER - 0.75 MIILES (RURAL TO URBAN CONVERSION) NORTH CREEK FEETSCALE 0 300 600 HORZ.R Client: City of Lakeville Project: 2021 Highview Avenue Improvements Task No.Work Task Description Principal-in-ChargeProject ManagerEIT / TechnicianWater Resource Project ManagerWater Resources Design EngineerNatural Resources SpecialistSurvey ManagerSenior Survey TechnicianSurvey CrewTotals 1.0 Topographic Survey 1.1 Research 1 1.5 2.5 1.2 Calculations & Preparation 1 2 3 1.3 GSOC (1 Marking Ticket, 1 Mapping Ticket)0.5 4 4.5 1.4 Horizontal Control 1.5 1 22 24.5 1.5 Vertical Control 1 1 10 12 1.6 Field Topo Survey - Curb and Utilities 2.5 48 50.5 1.7 Field Topo Survey - Full Cross Sections R/W to R/W 3.5 70 73.5 1.8 Structure Reports 0.5 10 10.5 1.9 Existing Conditions Drafting 2 1 3 1.10 Right-of-Way Determination 3.5 20 23.5 Subtotal Hours - Task 1 0 0 0 0 0 0 17 30.5 160 207.5 2.0 Geotechnical Engineering 2.1 Staking & Utility Clearance $1,155 2.2 Traffic Control $2,300 2.3 Drilling $3,040 2.4 Coring $1,930 2.5 Hand Augers and Probes $1,950 2.6 Laboratory Testing $970 2.7 Coordination, Analysis, and Report $3,875 Subtotal Hours - Task 2 0 0 0 0 0 0 0 0 0 0 3.0 Wetland Delination 3.1 Level 2 Delineation & Report 28 28 Subtotal Hours - Task 3 0 0 0 0 0 28 0 0 0 28 4.0 Preliminary Stormwater Management Design 4.1 Review Existing Conditions, Download Data 4 4 4.2 Delineate Existing Watersheds 1 8 9 4.3 Develop Existing Conditions Model 4 12 16 4.4 Modify Proposed Watersheds 4 10 14 4.5 Develop Proposed Conditions Model 8 30 38 4.6 Preliminary Pipe Sizing & Gutter Spread (State Aid)4 8 12 4.7 Assess Widened, Rural Section 4 8 12 4.8 Analyze Increase in Discharge Rate and Need for Rate Control 4 6 10 4.9 Discuss Opportunities to Enhance Water Quality 1 2 3 5.0 Identify Erosion Issues and Potential Solutions 4 4 8 5.1 Identify FEMA Issues 6 10 16 Subtotal Hours - Task 4 0 0 0 40 102 0 0 0 0 142 5.0 Preliminary Road Design & Feasibility Report 5.1 Review Available City As-Builts & Documentation 2 4 6 5.2 Corridor Analysis & Preliminary Design Linework 1 8 40 5.3 Preparation of Estimated Quantities and Costs 1 8 30 39 5.4 Urban Versus Rural Analysis 2 6 5 13 5.5 Feasibility Report Preparation 4 32 10 46 5.6 Assessment Roll Preparation (2 Parcels)4 4 5.7 Feasibility Report Figures 4 12 16 Subtotal Hours - Task 5 8 64 101 0 0 0 0 0 0 173 6.0 Project Management 6.1 Scheduling, Meetings, & Progress Updates 2 14 16 Subtotal Hours - Task 16 0 0 0 0 0 0 0 0 0 0 Detailed Fee Estimate Bolton & Menk, Inc. Braun Intertec Proposal 2021 Highview Avenue Improvements City of Lakeville, MN Page 1 of 2 Client: City of Lakeville Project: 2021 Highview Avenue Improvements Task No.Work Task Description Principal-in-ChargeProject ManagerEIT / TechnicianWater Resource Project ManagerWater Resources Design EngineerNatural Resources SpecialistSurvey ManagerSenior Survey TechnicianSurvey CrewTotal Hours Total Cost 1.0 Topographic Survey 0 0 0 0 0 0 17 30.5 160 207.5 $30,638 2.0 Geotechnical Engineering 0 $15,220 3.0 Wetland Delination 0 0 0 0 0 28 0 0 0 28 $2,800 4.0 Preliminary Stormwater Management Design 0 0 0 40 102 0 0 0 0 142 $17,588 5.0 Preliminary Road Design & Feasibility Report 8 64 101 0 0 0 0 0 0 173 $22,638 6.0 Project Management 2 14 0 0 0 0 0 0 0 16 $2,566 Total Hours 10 78 101 40 102 28 17 30.5 160 566.5 Average Hourly Rate $177.00 $158.00 $110.00 $149.00 $114.00 $100.00 $164.00 $100.00 $155.00 Subtotal $1,770 $12,324 $11,110 $5,960 $11,628 $2,800 $2,788 $3,050 $24,800 Braun Interec Subconsultant Total Proposed Fee $91,450 Fee Estimate Summary Bolton & Menk, Inc. 2021 Highview Avenue Improvements City of Lakeville, MN Page 2 of 2 AA/EOE Braun Intertec Corporation 11001 Hampshire Avenue S Minneapolis, MN 55438 Phone: 952.995.2000 Fax: 952.995.2020 Web: braunintertec.com August 24, 2020 Proposal QTB125390 Eric Seaburg, PE Bolton & Menk, Inc. 2035 County Road D East Maplewood, MN 55109-5314 Re: Proposal for a Geotechnical Evaluation Highview Avenue Improvements 175th Street West to CSAH 46 Lakeville, Minnesota Dear Mr. Seaburg: Braun Intertec Corporation respectfully submits this proposal to complete a geotechnical evaluation for Highview Avenue between 175th Street West and CSAH 46 in Lakeville, Minnesota. Project Information Per your e-mail dated August 7, 2020 to the City of Lakeville, and based on conversations with you, we understand the proposed project will include the rehabilitation (likely reclamation) of about 1.6 miles of Highview Avenue. A portion of the corridor that currently has a rural cross-section may be widened and converted to urban as part of the project. The City is also seeking recommendations for pavement rehabilitation or preservation for the portion of Highview Avenue north of 165th Street West. Based on available soils information, some soft compressible soils may be encountered near the wetland/creek area between 172nd Street West and Interlachen Blvd if the embankment is expanded beyond its current footprint. Purpose The purpose of our geotechnical evaluation will be to characterize subsurface geologic conditions at selected exploration locations, evaluate their impact on the project, and provide geotechnical recommendations for the design and construction of the Highview Avenue improvement project. Scope of Services We propose the following tasks to help achieve the stated purpose. If we encounter unfavorable or unforeseen conditions during the completion of our tasks that lead us to recommend an expanded scope of services, we will contact you to discuss the conditions before resuming our services. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 2 Site Access Borings in the roadway will be accessible to a truck-mounted drill rig. We assume there will be no cause for delays in accessing the exploration locations. We are not including tree clearing, debris or obstruction removal, grading of navigable paths, or snow plowing in our fee estimate. In areas proposed for widening, the slopes appear to be relatively steep and set in possibly soft soils, which will make access with our drilling equipment difficult. We are proposing manual borings for these areas as further described below. Depending on access requirements, ground conditions or potential utility conflicts, our field crew may alter the exploration locations from those proposed to facilitate accessibility. Our drilling activities may also impact the vegetation and may rut the surface to access boring locations. Restoration of vegetation and turf is not part of our scope of services. Staking We will stake prospective subsurface exploration locations, as selected by us and approved by the City, and obtain surface elevations at those locations using GPS technology. For purposes of linking the GPS data to an appropriate reference, we request that you provide CAD files indicating location/elevation references appropriate for this project. Utility Clearance and Traffic Control Prior to drilling or excavating, we will contact Gopher State One Call and arrange for notification of the appropriate utility vendors to mark and clear the exploration locations of public underground utilities. You, or your authorized representative, are responsible to notify us before we begin our work of the presence and location of any underground objects or private utilities that are not the responsibility of public agencies. Our work will extend into the drive lanes of Highview Avenue or areas with limited shoulders. Based on the reported traffic volumes, protection of our drilling crews requires warning signs and flaggers that will alert motorists to our work within the roadway. We are including fees for a subcontractor to provide one day of flagging in our scope of services. Pavement Coring We will core pavements at the exploration locations to better characterize the pavement thicknesses and material conditions, as well as to allow us to sample aggregate base material for laboratory testing. This work will be done concurrently with the soil borings under the same traffic control. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 3 Automated Borings We propose to drill 10 power auger borings (PAB) for the roadway. The augers will be “pulled dead” to allow for direct sampling. For the swamp crossing, we propose to drill 3 standard penetration test (SPT) borings for the project. We will perform standard penetration tests at 2 1/2-foot vertical intervals to boring termination. Table 1 provides a summary of the proposed boring locations and depths. Table 1. Summary of Proposed Borings Location Type Quantity Depth (feet) Highview Avenue PAB 10 5 Highview Avenue (swamp crossing) SPT 3 14 1/2 Total 13 Approx. 75 Hand Auger Borings (HAB) To better understand the soil conditions in some of the proposed widening areas near the swamp crossing, we propose performing hand auger borings (HAB) along the existing roadway alignments. As design progresses, these locations will be identified based on discussions with the design team. HAB will be performed along the alignment in widening areas not accessible to our drill rigs for reasons such as heavy vegetation, existing site terrain, slopes, and/or utility conflicts. We included one day in our scope for two staff engineers to perform the work (assume 6 to 8 locations per day) to depths of up to 5-10 feet below the existing ground surface, or to a depth at which manual effort is no longer sufficient. Groundwater Measurements If the borings encounter groundwater during or immediately after drilling of each boring, we will record the observed depth on the boring logs. MDH Notification and Sealing Record Since our planned exploration will be less than 15 feet in depth, the Minnesota Statutes will not require that we complete any notifications or sealing records. If we extend any of the borings (and soundings/cores) to a depth of 15 feet or greater, the Statutes requires that we seal the boreholes and complete a Sealing Record. If 25 feet or greater, the Statutes also require us to complete a Sealing Notification Form. If the Record or Form are required, we will contact you to discuss the additional fees and sealing requirements. Borehole Abandonment We will backfill our exploration locations immediately after completing the drilling and coring at each location. We currently do not anticipate having to seal any of the boreholes. Upon backfilling or sealing exploration locations, we will fill holes in pavements with a temporary patch. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 4 Sealing boreholes with grout will prevent us from disposing of auger boring cuttings in the completed boreholes. Unless you direct us otherwise, we intend to thin-spread the cuttings around the boreholes. If we cannot thin-spread cuttings, we will put them in a container left on site. We can provide off-site disposal of the cuttings for an additional fee. Over time, subsidence of borehole or core backfill may occur, requiring releveling of surface grades or replacing bituminous or concrete patches. We are not assuming responsibility for re-leveling or re- patching after we complete our fieldwork. Sample Review and Laboratory Testing We will return recovered samples to our laboratory, where a geotechnical engineer will visually classify and log them. To help classify the materials encountered and estimate the engineering properties necessary to our analyses, we have budgeted to perform the following laboratory tests. Table 2. Laboratory Tests Test Name Number of Tests ASTM Test Method Purpose Moisture content 10 D2216 Soil classification, moisture condition, and engineering properties Sieve analysis 4 D1140 Gradation for aggregate base material Percent passing #200 sieve 3 D1140 Soil classification, and evaluate frost susceptibility Organic content 2 D2974 Evaluate suitability of soils for reuse We will determine the actual laboratory testing for the project depending on the encountered subsurface conditions. If we identify a laboratory testing program that exceeds the budget included in this proposal but provides additional value to the project, we will request authorization for the additional fees through a Change Order. Engineering Analyses We will use data obtained from the subsurface exploration and laboratory tests to evaluate the subsurface profile and groundwater conditions, and to perform engineering analyses related to structure and pavement design and performance. Report We will prepare a report including:  A CAD sketch showing the exploration locations.  Logs of the borings describing the materials encountered and presenting the results of our groundwater measurements and laboratory tests. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 5  A summary of the subsurface profile and groundwater conditions.  A summary of our visual evaluation of the in-place aggregate base materials, including possible inclusions of stabilizing agents such as concrete.  Discussion identifying the subsurface conditions that will impact design and construction.  Discussion regarding the reuse of on-site materials during construction.  Recommendations for preparing structure and pavement subgrades, and the selection, placement and compaction of fill.  Recommendations for the design and construction of widened embankments.  Recommendations for pavement rehabilitation and pavement thickness design. We will submit an electronic copy of our report to you. Schedule We anticipate performing our work according to the following schedule.  Drill rig mobilization – within about three weeks following receipt of written authorization  Field exploration – two days on site to complete the work  Classification and laboratory testing – within 1 to 2 weeks after completion of field exploration  Preliminary results – within two weeks after completion of field exploration  Draft report submittal – within about four weeks of authorization  Final report submittal – within two weeks of receiving comments on the draft report If we cannot complete our proposed scope of services according to this schedule due to circumstances beyond our control, we may need to revise this proposal prior to completing the remaining tasks. Fees We will furnish the services described in this proposal for a lump sum fee of $15,220. Table 3 provides a breakdown of the proposed fees. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 6 Table 3. Proposed Fee Breakdown Service Fee Staking and Utility Clearance $1,155 Traffic control 2,300 Drilling 3,040 Coring 1,930 Hand Augers and Probes 1,950 Laboratory Testing 970 Coordination, Engineering Analysis, and Report 3,875 Total $15,220 Our work may extend over several invoicing periods. As such, we will submit partial progress invoices for work we perform during each invoicing period. General Remarks We will be happy to meet with you to discuss our proposed scope of services further and clarify the various scope components. We appreciate the opportunity to present this proposal to you. We based the proposed fee on the scope of services described and the assumptions that you will authorize our services within 30 days and that others will not delay us beyond our proposed schedule. Bolton & Menk, Inc. Proposal QTB125390 August 24, 2020 Page 7 We will provide our services under the terms of the Master Subconsultant Agreement for Professional Services dated January 1, 2017. This agreement will outline the terms and conditions of our services. To have questions answered or schedule a time to meet and discuss our approach to this project further, please contact Neil Lund at 952.995.2284. Sincerely, BRAUN INTERTEC CORPORATION Neil G. Lund, PE Senior Engineer Bryan C. Field, PE Account Leader, Senior Engineer 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 E ML OC K 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 Y PATHHAYWOOD CTHAMILTON CTHYLANDCTHAVELOCKWAY HANNIBAL CTIMPATIENSCTHEATHCTH A R V A R D DR GROVEAV EHUMMINGBIRDAVEHERS H E Y P AT H161 S T ST W 1 6 3RD ST W H O L L Y H O CKAVEHERS HE Y CT HI L L SBORO CT I NT ERLACHENCT1 6 5TH S T W HEMLOCKCTHURONPATH 1 6 9 THCTW HARVARDCTHOUSTONAVEHUDSONAVE HUNTINGTON PAT HGUNFLINTC I R HAYESAVE1 6 8 T H S TW G UNFLINTTR L HALLMARKPATHHALIFAXPATHGRIFFON TRL HARMONY TRLHOMINYCTHARDINGLNH A RVA R D D R H A R W E 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