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Brainerd Public Utilities Commission WWTP
Upgrade
BDM is a joint venture partner with Barr Engineering to
complete the engineering and permitting to upgrade the Brainerd Wastewater
Treatment Plant. The Cities of Brainerd and Baxter treat their wastewater at
a wastewater treatment plant (WWTP) owned and operated by the Brainerd
Public Utilities Commission. The two Cities are experiencing growth rates
of 3% to 5% per year, and the existing WWTP facilities have reached their
hydraulic treatment capacity limit.
The WWTP discharge flows into the Mississippi River,
which has been classified as an Outstanding Resource Value Water (ORVW) by
the Minnesota Pollution Control Agency.
ORVW status requires that new WWTP
discharges not exceed
existing effluent mass loadings. The more the
Cities’ populations
grow, the higher the level of treatment required at the new WWTP.
The Cities also have to meet stringent and costly
discharge limits limits
for removing phosphorus and mercury
reduction.
BDM previously completed the upgrade of
the Elk River WWTP, WWTP,
which was the first application of ORVW requirements in Minnesota.
BDM Consulting Engineers and Surveyors, PLC and Barr
Engineering:
Developed an innovative proposal to expand the WWTP
facilities in 2 phases,
in 2007 and 2016.
This approach matches the
expenditure of capital fu
funds with
the growth of the communities. If growth
is more rapid than predicted, the 2016
construction
can be accelerated; if growth is less
than predicted,
the
second upgrade can be postponed until additional
capacity is needed.
The
BDM/Barr project team is presently designing the 2007
improvements and completing permit application and environmental review for
the new $26 million WWTP. Construction is anticipated
Spring 2007 through 2008.
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City of St. Paul Park - St. Paul Park Road
Construction
BDM
provided construction management for the stretch of St. Paul Park Road
connecting with the Marathon/Ashland refinery and 3rd Street to
CSAH 74 at the Saint Paul Park Interchange with TH 61.
 The project contains a curved girder bridge, which spans the CP
the railroad track at 5th Avenue and 5th
Street. The new bridge will will eliminate the potential for traffic conflicts,
with over 60 freight freight trains each day.
Various levels of State and Federal agencies involved in funding
funding or jurisdiction over the area complicated the project.
The State Homeland Security Office was involved because
the the project impinges on the refinery, which produces 15 - 20% of the
the State’s gasoline supply. Eight hundred (800) petroleum tankers
tankers load at the tank dock each day, and
maintaining access to the tank
Interstate TH-61 was an extremely
important concern.
and The St. Paul Park Road project crosses a significant difference in
elevation, from 746 feet at the Newport connection, to 782 feet at the
railroad crossing, and matching CSAH 74 at 780 feet. Much of the grade
change was constructed from 221,000 cubic yards of compacted select fill
imported from the State’s I-494 reconstruction project.
BDM Consulting Engineers
and Surveyors, PLC:
Managed construction of
approximately 3,400
feet of St. Paul Park Road.
Provided three full-time BDM site representatives
for Field Inspection services
Successfully managed an
extremely high level of
coordination
between the City, County, and State
agencies
monitoring the project.
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City of Lonsdale - Wastewater Treatment
Plant Upgrade
The City of Lonsdale is a growing
community located 30 miles southwest of the Twin
Cities metropolitan area. During
their on-going housing boom, the City received
a
large number of sewer extension requests from 5
developers.
Due to some
operational problems and capacity concerns
with the wastewater
treatment lagoons
(WWTP), the MPCA would not approve
the sewer extension
permits until these issues
were resolved.
BDM was selected by the City
Council to undertake a series of studies
and and
improvement efforts for its WWTP.
Our staff immediately conducted a preliminary study
and provided solutions to the
the operational problems that addressed MPCA concerns.
Within 3 months, the MPCA lifted the restrictions on Lonsdale’s sewer
extension extension
permits and allowed development projects to proceed.
BDM Consulting Engineers
and Surveyors, PLC:
Completed the facility plan, applied for
necessary environmental permit
applications, and
designed WWTP upgrades.
Provided construction services including on-site inspection, construction
a
administration and completion of the operation and maintenance
manual.
Helped the City keep the budget to
less than 0.1% expansion during
during
construction through change orders.
Increased the City’s wastewater treatment capacity to over 8000
residents
residents and reduced the footprint 80% by
converting from a natural
pond system to a fully mechanical treatment plant.
The City was able to free up more than 20 acres of land reclaimed from old
ponds, and redeveloped and sold the land
to businesses in Lonsdale's 5 lot industrial park.
Construction of the $5.8 million
Wastewater Treatment Plant is complete. The new plant is now in operation
and successfully meets all permit conditions, including stringent limits for
nutrients such as ammonia and phosphorus.
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