1i. TH 5 Improvements: Approve Resolution for HSIP Application
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227,1110
Building Inspections
Phone: 952,227.1180
Fax: 952.227.1190
Engineering
Phone: 952,227,1160
Fax: 952,227.1170
Finance
Phone: 952,227,1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227,1120
Fax: 952,227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227,1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952,227,1130
Fax: 952.227.1110
Public Works
1591 Park Road
Phone: 952.227,1300
Fax: 952.227.1310
Senior Center
Phone: 952.227,1125
Fax: 952,227,1110
Web Site
www.ci.chanhassen.mn.us
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MEMORANDUM
TO:
Todd Gerhardt, City Manager
4,1'J,
Paul Oehme, Dir. of Public Works/City Engineer ~ (
FROM:
DATE:
July 13, 2009
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SUBJ:
TH 5 Improvements, PW067B2a: Approve Support Resolution for HSIP
Application for Roadway Improvements at Minnewashta Parkway
PROPOSED MOTION
"The City Council approves the resolution supporting the Federal Funding
application for TH 5 improvements at Minnewashta Parkway."
City Council approval requires a simple majority vote ofthe City Council
present.
BACKGROUND
A roadway scoping study was completed in October 2008 on TH 5 for TH 41 to
Norwood/Young America which identified safety and mobility needs for the
corridor. The scoping study included two open houses for residents along the
corridor to comment on the proposed improvements. MnDot has also completed
additional scoping work and refinement areas for needed improvement from TH
41 to CSAH 11. Based on these scoping studies, improvements are being planned
for the corridor. MnDot is planning to complete a preservation project on TH 5
from Minnewashta Parkway into Victoria in the near future. The MnDot project
will include some safety improvements; however, it does not include many of the
items that were identified in the scoping document due to funding constraints.
This application will be applying for grant dollars to include more safety and
mobility improvements which if successful may be included with the MnDot
preservation project.
On June 8, 2009, the City Council approved a Federal grant application for a trail
underpass under TH 5 at Minnewashta Parkway.
DISCUSSION
The Metropolitan District of MnDot, on behalf of the Transportation Advisory
Board (TAB) of the Metropolitan Council, has requested applications for the
Highway Safety Improvement Program (HSIP) category for Federal
Transportation Funding for the years 2013 and 2014. Approximately $8.4 million
is projected to be available for this program category in the metropolitan area.
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Todd Gerhardt
Approve Support Resolution for HSIP Application
July 13,2009
Page 2
The application includes the following improvements in the project scope:
.
Shoulder widening on TH 5 from 600 feet east of Lone Cedar Lane to 1100 feet west of
Minnewashta Parkway.
.
Addition of an eastbound left-turn lane .at Minnewashta Parkway.
.
Addition of pavement widening required for the westbound left turn-lane although this left-
turn lane will be hatched out until the south approach of Minnewashta Parkway is
constructed.
.
The westbound right-turn lane at Minnewashta Parkway will be relocated.
.
Mill and overlay on Minnewashta Parkway between TH 5 and Lakeridge Road.
.
The existing trail running on the east side of Minnewashta Parkway will be relocated.
.
Construction of a cul-de-sac and private driveway on Lone Cedar Lane.
.
Close the existing Lone Cedar Lane and private driveway connections to TH 5.
The estimated cost of the project is $1,000,000. The grant application requires the applicant fund
10% of the construction cost. The grant funds do not include project development, engineering
or construction services cost. If the application is successful, staff will work with the City of
Victoria, Carver County and MnDot to see if these agencies would partner with the City of
Chanhassen on this project. It is envisioned that MnDot would include this work in their
preservation project and complete the design and construction administration.
Attachments: Project Plan Summary
Exhibit of Proposed Improvements
Resolution
G:\ENGIPUBLICIPW067B2a TH 5 Grant Application. HSIP\071309 bkgd council appv MoDol Apps.doc
HSIP FUNDING APPLICATION
TH 5 IMPROVEMENTS
PROJECT PLAN SUMMARY
JULY 1, 2009
Introduction
Trunk Highway 5 (TH 5) is located between TH 7 and TH 212 in Carver County, Minnesota. TH 5 is a
key minor arterial that provides east-west mobility through the county. The Trunk Highway 5 Corridor
Study was undertaken by Carver County in partnership with the cities ofChanhassen, Victoria, Waconia
and Norwood Young America, in collaboration with Mn/DOT, to guide future planning and
improvements along TH 5. With the rapid urban growth that has occurred in the area, the expansion of
TH 5 to a four-lane facility has been identified as a need in the corridor study; however, it is currently
unfunded in the 20-year Transportation System Plan.
The Technical and Advisory Committees for the Corridor Study identified several interim improvement
projects along TH 5. Many of these improvements are intended to improve safety along the corridor.
These safety improvements include improving shoulder widths, adding turn lanes, consolidating access
points, and constructing local access roads.
The City of Chanhassen is proposing to implement several of the improvements identified along TH 5
between a point located about 600 feet east of Lone Cedar Lane to about 1,100 feet west of Minnewashta
Parkway. The City is requesting Highway Safety Improvement Program (HSIP) funding to improve
safety and traffic flow within this area.
Existing Conditions
TH 5 is a two lane high-speed rural roadway with inadequate shoulders, deficient turn lanes, and poor
access management.
TH 5 and Lone Cedar Lane is a side street stop controlled T -intersection that provides access to TH 5 for
a residential development. There is a righHurn lane from TH 5 to Lone Cedar Lane for westbound traffic.
Eastbound left-turns from TH 5 to Lone Cedar Lane are prohibited by regulatory signs, but there are not
any geometric restrictions to prevent eastbound left-turns.
TH 5 and Minnewashta Parkway is a side street stop controlled T -intersection. There is a right turn lane
for westbound traffic turning from TH 5 to Minnewashta Parkway. Instead of a fully developed left-turn
lane for eastbound traffic on TH 5, there is a by-pass lane which creates increased potential for rear-end
crashes.
Proposed Improvements
To improve the safety and traffic operations inthe area, the City of Chanhassen is proposing to construct
a left turn-lane on eastbound TH 5 to Minnewashta Parkway, and to improve shoulder widths to current
MnlDOT design specifications along TH 5 from about 600 feet east of Lone Cedar Lane to approximately
1,100 feet west of Minnewashta Parkway.
The City proposing to mill and overlay Minnewashta Parkway from TH 5 to a point approximately 800
feet north ofTH 5, add an exclusive left-turn lane onto TH 5, add a future through lane, relocate the
exiting right-turn lane to westbound TH 5, and relocate the existing bituminous trail running along the
east side ofMinnewashta Parkway.
The City is proposing to close the Lone Cedar Lane access to TH 5. A residential driveway access
located on TII 5 approximately 600 feet to the east of the Lone Cedar Lane and TII 5 intersection will
also be closed. The City is proposing to build a cul-de-sac on Lone Cedar Lane, and a private driveway
will be constructed east of the cul-de-sac to provide access for three residential properties. After
improvements, these properties will gain access to TH 5 by traveling on Lone Cedar Lane to W. 77th
Street to Minnewashta Parkway. The private residential driveway that has access to TH 5 immediately
east of Lone Cedar Lane will obtain access from the private drive to allow for closure of the existing
private drive connection to TH 5.
A location map and preliminary layout of the proposed improvements are included in Exhibits 1 and 2,
respectively.
Crash Data and Analysis
Crash diagrams for the intersection ofTH 5/Minnewashta Parkway and a listing of crashes for the TH 5
corridor between TH 41 and Bavaria Road were received from Mn/DOT for the years 2005-2007. A copy
of the TIS accident data and the collision diagrams received from Mn/DOT are included in Attachment
A. Crashes that occurred along TH 5 within the project limits were analyzed. Crash types included rear
end crashes, right angle crashes, ran off the road crashes, and head-on crashes. Crashes involving deer
and those that occurred outside of the project limits were excluded from th.e analysis. Exhibit 3 includes
a table th.at highlights the accidents included in the TIS data printout that were used as a part of this
analysis. Those not highlighted either occurred outside of the proposed project limits or involved a deer.
The analysis of the crash data involved using crash reduction factors from MnlDOT's Before and After
Studies (Appendix D of the HSIP Application Instructions Packet) as well as FHW A's Desktop
Reference for Crash Reduction Factors (Desktop Reference) published in 2007.
For rear end crashes, it was assumed that 100 % of the crashes at TH 5 and Lone Cedar Lane will be
reduced since the intersection will be closed. For the rear end crashes at TH 5 and Minnewashta
Parkway, two crash reduction factors were combined using the formula provided in the HSIP Application
Instructions Packet. From Mn/DOT's Before and After Studies, a 15% reduction was taken for
constructing a left-turn lane and from the Desktop Reference, a 20% reduction was taken due to planned
shoulder widening. For rear end crashes that occurred along TH 5 at all locations except the TH 5 and
Minnewashta intersection, a 20% reduction factor for widening shoulders from the Desktop Reference
was applied.
For right angle crashes, a 15% crash reduction factor was used from MnlDOT's Before and After Studies
for constructing turn lanes. There was one right angle crash at the TH 5 and Lone Cedar Lane
intersection and a 100% crash reduction factor was used because this intersection will be closed as a part
of the proposed improvements.
For the run off the road crashes, a 20% crash reduction factor was used for the crashes on TH 5. This
reduction factor was from the Desktop Reference under widen shoulder and applies to all accident types.
For the crashes on TH 5 near Minnewashta, two crash reduction factors were used. A 25% crash
reduction for constructing turn lanes and a 20% reduction for widening shoulders were combined to
obtain the crash reduction factor.
A 20% crash reduction was used for head on and opposite direction sideswipe crashes. This reduction
factor was from the Desktop Reference under widen shoulder.
Exhibit 4 includes the calculations used to determine the change in crashes since this analysis included
improvements along a roadway section as well as two intersections.
Benefit/Cost Ratio
A conceptual cost estimate completed for this project shows that the total estimated eligible costs for this
project are $1,000,000. The conceptual cost estimate is included in Attachment B. The cost estimates
included in MnlDOT's Metro Project Planning Report SP 1002-86 (TH 5) were used to develop this
conceptual cost estimate. The cost estimate includes the following:
. Shoulder widening on TH 5 from 600 feet east of Lone Cedar Lane to 1100 feet west of
Minnewashta Parkway;
. Addition of a eastbound left-turn lane at Minnewashta Parkway;
. Addition of pavement widening required for the westbound left although this left-turn lane will be
hatched out until the south approach of Minnewashta Parkway is constructed;
. The westbound right-turn lane at Minnewashta Parkway will be relocated;
. Mill and overly on Minnewashta Parkway between TH 5 and Lakeridge Road;
. The existing trail running on the east side ofMinnewashta Parkway will be relocated;
. Construction of a cul-de-sac and private driveway on Lone Cedar Lane.
. Close the existing Lone Cedar Lane and private driveway connections to TH 5.
MnlDOT's STIP for 2011 includes milling and overlaying TH5 so these costs were not included in this
estimate since these improvements are already programmed.
The crash data previously discussed and the anticipated costs were used in the HSIP Worksheet to
determine the cost/benefit ratio for the project. A cost/benefit ratio of 3 .21 was calculated. The
completed HSIP Worksheet is included in Attachment C.
Conclusion
The proposed improvements to TH 5 will provide increased safety, and operational efficiency along this
regional transportation corridor. With a cost/benefit ratio of3.21, the benefits far outweigh the costs and
this project should be selected as a federally HSIP funded project due to the positive safety and
operational improvements along TH 5.
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CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
DATE:
Julv 13. 2009
RESOLUTION NO:
2009-
MOTION BY:
SECONDED BY:
RESOLUTION IN SUPPORT OF FEDERAL HSIP FUNDING
APPLICA TION FOR TH 5 IMPROVEMENTS - PW067B2A
WHEREAS, a roadway scoping study completed in October 2008 identified safety
and mobility needs for the TH 5 corridor; and
WHEREAS, the City has discussed with MnDOT improvements to the above-
referenced trunk highway as it relates to projects using HSIP funding, and
WHEREAS, no agreement has been reached, but all parties involved understand
the importance and need for this project, and funding partnerships will continue to be
discussed.
NOW, THEREFORE, BE IT RESOLVED, that the City Council is in support of
federal HSIP funding for improvemen~s to TH 5, PW067B2a.
Passed and adopted by the Chanhassen City Council this 13th day of July 2009.
ATTEST:
Todd Gerhardt, City Manager
Thomas A. Furlong, Mayor
YES
NO
ABSENT