3.1.D. SR 02-21-1994
IlINSULTUG ENGImIS
CIVil ENGINEERING:
ENVIRONMENTAl
MUNICIPAL
PLANNING
STRUCTURAL
'JRVEYING
T,~AFFIC
TRANSPORTA TlON
1326 Energy Park Drive
51. Paul, MN 55108
612-6M-4389
Fax: 612-6M-9446
.800 SheIord Parkway
Minneapolis, MN 55441
612-546-0432
Fax: 612.544-6398
ITEM 3. 1. D .
January 24, 1994
File: 230-202-10
Mr. Pat Klaers
City Administrator
City of Elk River
13065 Orono Parkway
Elk River, MN 55330
RE: FEASffiILITY STUDY
TH 10 TURN LANE AT OXFORD STREET
Dear Mr. Klaers:
As directed at the October 25, 1993, City Council meeting, a feasibility study has been
prepared for the above-referenced project. This study was authorized at the request of Mr. Ken
Beaudry, who is currently building a convenience store/gas station at the comer ofTH 10 and
Proctor Avenue.
This feasibility study analyzes the possible construction of a right turn lane from TH 10 onto
Oxford Avenue. The location of this improvement is shown by Exhibit 1. Included in this
study is a discussion of the existing conditions, proposed improvements, and estimated project
costs. The project cost includes estimated construction costs plus overhead costs including City
administration, engineering, fiscal, and legal expenses. The City's Assessment Manual will be
referenced as a guide to methods of financing the project.
Existing Conditions
In March 1991, a conditional use permit was initiated by Mr. Ken Beaudry for the construction
of a convenience store/gas station. Following review by City staff, this conditional use permit
was subsequently approved. In July 1993, an extension with several conditions was granted for
the conditional use permit. One of these conditions was that a right turn lane be petitioned for
by Mr. Beaudry and that he waive any objections for assessments. A copy of the petition is
included as Exhibit 2.
Any improvements on TH 10 to construct a turn lane are under the jurisdiction of the
Minnesota Department of Transportation (MnDOT). The proper MnDOT authorities have been
contacted to determine the requirements for construction of a right turn lane.
202-1004.dec
.
Mr. Pat Klaers
January 24, 1994
Page Two
Currently, a 10-foot wide shoulder is in place south of the TH 10 and Oxford Avenue
intersection. A portion of this shoulder, approximately 90 feet in length, is concrete. The
remainder of the shoulder is bituminous surfaced. According to Mr. Ken Wasnie, the MnDOT
District 3 Materials Engineer, the existing shoulder is deficient in both section thickness and
width to accommodate a turn lane. Improvements would require removal and reconstruction
of the shoulder to facilitate a turn lane.
Proposed Improvements
Design standards for turn lane improvements along State roadways are established by MnDOT.
As shown by Exhibit 3, the turn lane requires a 14-foot wide surface measured from the edge
of the through lane to the face of curb. A concrete barrier curb is required along the length
of the turn lane. The pavement section determined by MnDOT for this turn lane is 3 inches
of bituminous surfacing and 4 inches of aggregate base on an acceptable subgrade. The total
length of the turn lane is required to be 480 feet, which includes 300 feet of surfacing for
vehicles to decelerate and turn, and 180 feet of transition taper to exit from the northbound
through lane.
.
According to Mr. Wasnie, MnDOT's preference for these improvements would be to remove
the existing concrete and bituminous portions of the shoulder and construct all improvements
with bituminous surfacing. A second and less attractive option of widening the existing
concrete section was discussed. However, the additional construction costs and difficulties
indicate that MnDOT's preferred option is also more cost effective.
Estimated Costs
The estimated construction and project costs for right turn lane improvements at Oxford Avenue
are provided below. The overhead costs have been estimated at 28 % of the construction cost
as detailed by the City's Assessment Manual.
Estimated Construction Cost
Administration, Engineering, Fiscal (28 %)
Estimated Total Project Cost
$19,600
5.500
$25,100
The construction cost includes removal of the existing shoulder, excavation, placement of
aggregate base and bituminous surfacing, concrete curb, placement of fill material behind the
curb, sodding, striping, and traffic control during construction.
.
202-1004.dec
e
Mr. Pat Klaers
January 24, 1994
Page Three
Easements and Permits
The existing right-of-way along TH 10 varies in width from 190 feet to 240 feet. This right-of-
way appears to be adequate to construct the turn lane improvements. No additional permanent
easement is anticipated as being required. Fill material and sodding will be needed behind the
new concrete curb to match the existing boulevard. If necessary, permission would be secured
from abutting property owners should work need to be done to match private property. The
width of the area affected by construction would be determined during the design process.
The only permit necessary for the turn lane improvements would be from MnDOT for work
within their right-of-way. This permit would require bonds and insurance documentation from
the Contractor performing the work.
Financing
As discussed earlier in this study, a condition of the extension of the conditional use permit was
that Mr. Beaudry waive any objections to assessment for the improvement. It is therefore
understood that all project costs associated with the work shall be ultimately funded by Mr.
Beaudry .
e
Project Schedule
The following schedule could be met for the right turn lane improvements:
Receive feasibility study and order public hearing
Hold public hearing and order project and
and plans and specifications
Approve plans and specifications and advertise for bids
Open bids
Receive bids, establish amount to be assessed, and set
assessment hearing date
Hold assessment hearing
A ward contract
Begin construction
Complete construction
e
202-1004.dec
February 7, 1994
March 7, 1994
March 28, 1994
April 13, 1994
April 18, 1994
May 1994
May 1994
June 1994
July 1994
e
Mr. Pat Klaers
January 24, 1994
Page Four
This schedule could be amended to allow the assessment hearing and contract award on the
same date. Should Mr. Beaudry be the only property owner to be assessed, he could waive the
need for an assessment hearing. However, the hearings would occur near the beginning of the
construction season, so the process does not impact the time when construction could begin.
Conclusion
The estimated project cost for the right turn lane improvements at TH 10 and Oxford Avenue
is $25,100. The proposed improvements are feasible from an engineering standpoint and meet
all standards set forth by the City and MnDOT.
Please contact either Terry Maurer or me if you have any questions.
Sincerely,
e
MSA, CONSULTING ENGINEERS
~~4~
Mark J. Graham, P.E.
e
202-1004.dec
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EXt-Br 1
RIGHT TURN LANE
TRUNK HWY. 10 AN:) OXFORD AVE.
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ver
PETITION FOR LOCAL IMPROVEMENT
City of Elk River
State of Minnesota
1-/(
To the City Council of Elk River, Minnesota:
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WE. THE UNDERSIGNED OWNERS of (all) (not less than 35 percent iD
frontage) of the real property described as: N. F COJe.i1et:. 0+ /lLU710
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hereby petition. pursuant to Minnesota Statutes, Chapter 429,
following public improvements:
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for the
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EACH OWNER FURTHER AGREES, in consideration of the City action at our
request to cause construction of the above-described improvement, .to pay
such sums as may be determined by the City to be a fair and reasonable
apportionment of the costs of said improvement.
OWNER EXPRESSLY WAIVES OBJECTION to any irregularity with regard to
the making of the improvement or assessment of the cost thereof; waives any
claim that the amount thereof levied against owner's property is excessive;
and waives all rights of appeal in the courts.
Date
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Signature
of Owner
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Print Name Description of
of Owner Property L ( r
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Examined, checked, and found to be in proper form and to be signed by
the owners of the above-stated quantity of property affected by the making
of the improvement petitioned for.
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City Clerk
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