C. Discuss 2012 Street Improvement ProjectMEMORANDUM
CITY OF TO: Paul Oehme, Director of Public Works /City Engineer
CIIAN 1Hi SE FROM: Alyson Fauske, Assistant City Engineer
7700 Market Boulevard DATE: May 9, 2011 p
PO Box 147
Chanhassen, MN 55317 SUBJECT: Discuss 2012 Street Improvement Project - Project No. 12 -01
Administration
Phone: 952.227.1100
DISCUSSION
Fax: 952.227.1110
Staff is planning to discuss the proposed
Building Inspections
2012 street reconstruction project with the
Phone: 952.227.1180
Council.
Fax: 952.227.1190
Engineering
The Capital Improvement Program had
Phone: 952,227.1160
planned for reconstructing the
Fax: 952.227.1170
Minnewashta Heights Neighborhood
(north of Lake Minnewashta) next year.
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
wwadchanhassen.mn.us
The streets proposed for reconstruction
were chosen using the City's Pavement
Management Program and were identified
due to utility problems in the area.
STATZ HIGH WAY 7
Proj ect
LAKE MINNEWASHTA
Location
r
3 �
STATE HIGHWAY 5
The streets in
Minnewashta Heights are
40 years old and cannot
be cost effectively
repaired with minor
maintenance or even a
bituminous overlay.
The streets were last
sealcoated in 1994 and
1999.
Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow
Paul Oehme
2012 Street Improvement Project
Page 2
For the 2006 Surface Water Management plan, this area
was modeled and a preliminary drainage analysis was
completed. Also, several years ago a consultant was
hired to give recommendations for drainage
improvements south of Highway 7 in the Minnewashta
Landings development to the west. Staff intends to use
this information and gather additional information to
complete a storm water design for the area.
The project area is developed and streets have 50' right -
of -way; therefore there is minimal space to provide
traditional storm water management, namely curb and
gutter, storm sewer and treatment ponds. Staff may
need to look at alternative storm water management
systems for this project. Staff plans to meet with the
neighborhood in June to discuss the storm water
management options.
The streets are in poor condition with an
average pavement condition index of 38. A
road under 45 typically indicates distress
that would require a full depth
reconstruction.
The west portion of Shore Drive has a
pavement condition index between 52 and
64; however these scores are artificially high
since there are three watermain break
patches in this vicinity.
The watermain in this area is cast iron pipe
and has eight documented breaks. The
sanitary sewer will be televised to determine
its condition and if there is
inflow /infiltration into the system.
SSP��
Minnewashta
Heights Park
There are overhead private utilities within the project area. The private utility companies will be
notified of the proposed project and asked to provide an estimate to bury the utility. Should the
neighborhood wish to pursue burying the private utilities, 100% of the cost will be assessed to the
benefitting property owners.
Budgets for the proposed work have been included in the 2011 CIP. The budgets will need to be
reviewed and updated based upon current construction cost estimates.
G:\ENG\PUBLIC\ 2012 PROJECTS \12 -01 Minnewashta Hts recon \05 -09 -2011 work session.doc
Paul Oehme
2012 Street Improvement Project
Page 3
Assessments will be based off the City's assessment practice of assessing 40% of the street
improvements to the benefiting properties on a per lot basis. The assessments would be proposed
for 10 years at 6% interest. A consultation report should be drafted to help determine the final
assessment amount. One Hundred Percent (100 %) of the utility and stormwater improvements
would be funded out of the respective utility funds.
As with all improvement projects, the Engineering Department will hold several neighborhood
meetings to answer resident questions about the proposed improvements and assessments. These
meetings also give staff an opportunity to gather additional information about the area to help make
the project successful.
Consultant engineering services would be needed for the street and utility reconstruction. The
engineering services would include feasibility report preparation, final design and construction
administrative services. Staff expects to have two proposals for engineering services by May 12,
2011.
A tentative schedule is as follows:
Approve Consultant Contract
Complete Soil Borings
Neighborhood Meeting
Complete Consultation Report
Neighborhood Open House
Accept Feasibility Report
Hold Public Hearing
Bid Opening
Assessment Hearing
Start Construction
Construction Substantially Complete
FUTURE STREET IMPROVEMENT PROJECTS
May 23, 2011
June, 2011
June, 2011
August, 2011
September, 2011
October, 2011
November, 2011
March, 2012
April, 2012
May, 2012
September, 2012
Staff will also review future planned street improvement projects with the Council at the
worksession.
Attachments: Preliminary CIP pages
GAENG\PUBLIC\ 2012 PROJECTS \12 -01 Minnewashta Hts recon \05 -09 -2011 work session.doe
Capital Improvement Program
City of Chanhassen, MN
2011 thru 2015
Project SS -014
Project Name Sanitary Sewer Replacement
Account #1 701 - 7025 -4751 Account #3
Account #2 Account #4
1 VIAL 11 VJ— �.vua. .vv ✓v,v v..
Description
Replacement or rehabilitation of existing_sanitary sewer lines in conjunction with the reconstruction of the City street.
Justification
the City considers the condition of the existing utilities in the process to select streets for rehabilitation in an effort to realize cost savings by
,onsolidating these projects.
Prior Expenditures
250,000 Construction
Total
Prior Funding Sources
250,000 Sewer Utility Fund
Total
P-
2015 Tot
600,000
Total 300,000 300,000 600,000
1
2015 Total
600,000
Total 300,000 300,000 600,000
Budget Impact/Other
This project will decrease maintenance costs.
100
2011 2012 2013 2014
300,000 300,000
2011 2012 2013 201
300,000 300,000
Department
Sanitary Sewer Improvements
Contact
Paul Oehme
Type
Improvement
Useful Life
Unassigned
Category
Utilities
Priority
n/a
1 VIAL 11 VJ— �.vua. .vv ✓v,v v..
Description
Replacement or rehabilitation of existing_sanitary sewer lines in conjunction with the reconstruction of the City street.
Justification
the City considers the condition of the existing utilities in the process to select streets for rehabilitation in an effort to realize cost savings by
,onsolidating these projects.
Prior Expenditures
250,000 Construction
Total
Prior Funding Sources
250,000 Sewer Utility Fund
Total
P-
2015 Tot
600,000
Total 300,000 300,000 600,000
1
2015 Total
600,000
Total 300,000 300,000 600,000
Budget Impact/Other
This project will decrease maintenance costs.
100
2011 2012 2013 2014
300,000 300,000
2011 2012 2013 201
300,000 300,000
Capital Improvement Program
C of Ch MN
2011 thru 2015
Project # ST -012
Project Name Annual Street Improvement Program
Department
Street Improvements
Contact
Paul Oehme
Type
Improvement
Useful Life
Unassigned
Category
Streets/Highways
Account #1 601 -xxxx -4751 Account #3 Priority n/a
Account #2 Account #4
Description Total Project Cost: $9,700,000
Annual project to rehabilitate and reconstruct streets in the City. Current 5 -year plan shows the following neighborhood areas:
2esidential 2011 - Timberwood Drive neighborhood, Saratoga, Santa Vera, Chippewa, Picha and Kerber (S of W 78th), Target lane and W 78th
>treet (Powers Blvd to Market Blvd)
2012 - Greenbriar, Fir Tree, Elm Tree, Dogwood, Shore Drive and Maplewood Circle (Reconstruction)
2013 - Greenwood Shores and West 78th Street (Powers to Market)
2014 - Dartmouth Drive and Cypress Drive
2015 - Carver Beach area (south and west of Carver Beach Road)
Justification
The City uses a Pavement Management System to monitor the condition of the City streets. While proper preventative maintenance extends the
life of the street and is cost effective, a street will eventually deteriorate to a point that further maintenance is no longer cost effective.
kehabilitation projects extend the life of the street. In cases with utility or poor sub grade needs to be replaced or where streets have deteriorated
to a point where rehabilitation will no longer be practical reconstruction of the street is necessary. A feasibility study is written to consider the
merits of the project and scope of work.
Prior
Expenditures
2011
2012
2013
2014
2015
Total
3,200,000 I
Construction
1,500,000
1,700,000
1,200,000
1,100,000
1,000,000
6,500,000
Total
Total
1,500,000
1,700,000
1,200,000
1,100,000
1,000,000
6,500,000
Prior
Funding Sources
2011
2012
2013
2014
2015
Total
3,200,000 I
Assessment/Revolving Assess
1,200,000
1,700,000
1,200,000
1,100,000
1,000,000
6,200,000
Total
Street Pavement Management
300,000
300
Total
1,500,000
1,700,000
1,200,000
1,100,000
1,000,000
6,500,000
[get Impact/Other
project may decrease maintenance costs.
Fslj]
Capital improvement Program 2011 thru 2015
City of Chanhassen, MN
Project # SWMP -019
Project Name Street Improvement Projects - Storm Water Mgmt
Department
Surface Water Management
Contact
Paul Oehme
Type
Improvement
Useful Life
Unassigned
Category
SWMP
Account #1 720 - 7025 -4751 Account #3 Priority n/a
Account #2 Account #4
Description Total Project Cost: $1,250,000
kn annual amount set aside for storm water management infrastructure construction or expansion associated with street improvement projects
mdertaken by the engineering and public works departments.
Justification
Street improvement projects frequently require construction or expansion of storm water management infrastructure in order to comply with
federal, state and local regulations, as well as protecting existing and proposed development adjacent to the projects.
Prior Expenditures
450,000 Construction
Total
Total 400,000 400,000 800,000
Prior Funding Sources 2011
2012 2013
2014 2015
Total
[ Surface Water Utility Fund
400,000
400,000
800,000
Total Total
400,000
400,000
800,000
Budget Impact/Other
Inventory, inspection and maintenance of new infrastructure will be required. Citywide. No map
2 011 2012 2013
- 400,000
2014 2015 Total
400,000 800,000
lollf
Capital Improvement Program
City of Chanhassen, MN
2011 thru 2015
Project # W -024
Project Name Watermain Replacement
Account #1 700- 7025 -4751 Account #3
Account #2 Account #4
Department
Water System Improvements
Contact
Paul Oehme
Type
Improvement
Useful Life
Unassigned
Category
Utilities
Priority
n/a
Description
Replacement of existing water main lines in coordination with the reconstruction of the City street.
Justification
The City considers the condition of the existing utilities in the process to select streets for rehabilitation in an effort to realize cost savings by
consolidating these projects and also to avoid potential cuts in recently improved streets. If significant repairs are necessary to the existing water
main, replacement may be the most cost effective option. Given the highly corrosive soils in the City, water main replacement is an ongoing
,project in the City.
Prior Expenditures
800,000 Construction
Total
700,000 700,000 1,400,000
Total 700,000 700,000 1,400,000
Prior Funding Sources 2011 2012 2013 2014 2015 Total
80 Water Utility Fund 700,000 700,000 1,400,000
a Total Total 700,000 700,000 1,400,000
0
projects will decrease maintenance costs.
201 2012 2013 2 014 2015 Total
131