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Project Updates
50/60 Roundabout
Crews made the most of the
weather in completing tasks in
preparation for 2015's work
associated with the construction
of the roundabout. Work on the
retaining walls along Kenwood
Trail between Jaguar Path and
185th Street has been completed.
Concrete footings made the
placement of the blocks easier
and allowed the crews to work in
colder weather. Key throughout
theprocess was the alignment of
the blocks. Placement was assisted by an excavator and corrections made using a
pry bar.
LAKEVILLE PUBLIC WORKS
Christopher Petree, Director
December 2014
li;'M Dome Demolition
The home demolitions are
completed for the houses
at 19920 Kenwood Trail
and 19348 Dodd
Boulevard. Excavators
made quick work of
tearing down the shells
and sorting materials for
disposal.
At 1910 Dodd Boulevard, the
demolition crew uncovered a
buried fuel oil tank that
required some additional
hazardous material mitigation.
Primarily this consisted of
removing specific amounts of
potentially contaminated soil
from around the sides and
below the tank. Staff is working
with the Minnesota Pollution
Control Agency to work out the
details for any additional soils
removal. Costs for the
additional work, along with the demolition of the houses is part of the projects
related to the reconstruction of both Kenwood Trail in 2017 and Dodd Boulevard in
2016 and shared with Dakota County.
*35 Water Main Breaks
Two water main breaks o
Interlachen Boulevard an
Crystal Hills Road resulted i
neighborhood residents bein
without water for a few hours o
Friday, 19 December. In on
case, the bolts on a valve han
been eaten away by corrosiv
soils and allowed the valve cove
and gasket to loosen ,and leal
Utilities Division staff was able t
dig down and replace the
bolts quickly and return water
service to that portion of the
neighborhood. Further up
the hill to the south, a hole in
the water main caused a
significant leak requiring
coordination with a
contractor to dig down and
make the repair. The hole
found in the pipe was also
caused by corrosive soils.
Aeration, moisture content,
a
temperature, and soil acidity all play a role in the corrosive potential of soil. Sandy
soils are more desirable from a low corrosivity standpoint as there is less moisture
content available to aid in corrosion. The clay soils in many parts of Lakeville retain
moisture which is the most important factor in soil corrosivity.
'11A Near -Road Air Pollution Monitoring
In February 2010, The U.S. ..
Environmental Protectio
Agency finalized new minimur
monitoring requirements ft
nitrogen dioxide (NO2). In th
new requirements, state an
local air monitory agencies ar
required to install near-roa
NO2 monitoring stations
locations where peak hourl
concentrations are expected t
occur within the near -road
environment in large urban
areas. In August 2011, the
EPA extended the
monitoring requirements to
include carbon monoxide
(CO). In Minnesota, the
Minnesota Pollution Control
Agency is installing two near -
road monitoring sites in the
Twin Cities metropolitan
area. The first site "began
operating in January 2013
along the 1-94 and 1-35 commons area near downtown Minneapolis. The second
site will begin operation in January 2015 along 1-35 in Lakeville. Selection of the
sites was based on daily traffic count, roadway design, congestion patterns, terrain,
and projections for future growth. Both NO2 and CO come principally from motor
vehicle exhaust and other stationary sources, the interest in near road monitoring
for these pollutants is to capture data from motor vehicle exhaust.
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1� Fuel System Decommissioning
In mid-December the fuel tanks
and fill station for the Water
Treatment Facility's (WTF) fuel
system were removed. A small
divided 6,000 gallon tank for
diesel and unleaded gas was
installed when the WTF was
built to reduce the need for
Utilities Division vehicles to
refuel at the then Public Works
facility in Airlake Industrial Park.
As the City grew, a second
10,000 gallon unleaded gas tank
was added in the early 2000s. With the completion of the Central Maintenance
Facility in 2005 and upgrades to that fuel system in 2012, the WTF fuel site was no
longer needed. Reducing to a single fuel site has improved tracking of fuel use
and vehicle preventive maintenance. The fuel system was sold to a landscape
design company in Mendota Heights through a sealed bid process.
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