6. 2013 Street Improvement Project: Greenwood Shores Public Hearing0
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
7901 Park Place
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
MEMORANDUM
TO:
FROM:
DATE:
o.
Paul Oehme, Director of Public Works /City Engineer
Alyson Fauske, Assistant City Engineer a 9 f
January 14, 2013
SUBJECT: 2013 Street Improvement Project No. 13 -01 -1: Greenwood Shores
Area Public Hearing
PROPOSED MOTION
"The City Council orders the preparation of plans and specifications for the
2013 Street Improvement Project 13 -01 -1, Greenwood Shores area.
City Council approval requires a simple majority vote of the City Council
present."
BACKGROUND
At the September 10, 2012 work session, staff reviewed with Council the
proposed 2013 Street Improvement project areas. Staff also discussed with the
Council the need to make improvements to more local streets then are currently
budgeted for in the Capital Replacment Plan.
On September 24, 2012, the City Council authorized the preparation of the
feasibility report.
On November 7, 2012, staff held an Open House for the Greenwood Shores
neighborhood; approximately 40 residents attended.
On November 14, 2012, staff held an Open House for the Horseshoe /Indian Hill
and Sandy Hook neighborhoods; approximately 40 residents attended.
On November 15, 2012, staff held an Open House for the Melody Hill
neighborhood; approximately 30 residents.
On December 10, 2012, the City Council accepted the feasibility study for the
proposed 2013 street improvements.
Chanhassen is a Community for Life - Providing far Today and Planning for Tomorrow
2013 Street Improvement Project 13 -01
January 14, 2013
Page 2
OVERVIEW, PURPOSE AND NEED FOR IMPROVEMENTS
Every year the City considers streets that are in poor condition to be rehabilitated or reconstructed.
For the 2013 Street Rehabilitation Project, staff is proposing to rehabilitate approximately 4.6 miles
of streets. The street segments within the proposed project were identified by the City's Pavement
Management software in conjunction with site investigations and are shown below.
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Indian Hill Road a
Greenwood
Shores
Sandy Hook
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The public hearings for the Melody Hill and the Sandy Hook/Horseshoe Curve /Indian Hill areas will
be held on January 28, 2013 and February 11, 2013, respectively.
GREENWOOD SHORES PROJECT AREA
Approximately 1.8 miles of streets are proposed to be full depth milled and overlaid within the
Greenwood Shores neighborhood located between Powers Boulevard and Lake Lucy. The streets
proposed for rehabilitation were selected based on the pavement condition scores and site
investigations. The streets in this area are 37 years old and were last sealcoated in 1992 and 1997.
Redman Lane and Shawnee Lane had a thin overlay paved by the Street Department in 2000 to keep
the street from completely deteriorating. Over the last several years, the Street Department has had
to significantly patch this area due to the condition of the streets. These streets can no longer be
maintained cost effectively with minor maintenance techniques.
The pavement condition indices (PCIs) from a survey done in 2010 are shown on the map below. A
score of 100 represents a new street and 0 represents a completely deteriorated street. A PCI below
45 typically warrants reconstruction; however, the utilities in the area are in fair condition and
therefore staff is recommending a full depth mill and overlay of the streets at this time. Subgrade
corrections would be done as needed.
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2013 Street Improvement Project 13 -01
January 14, 2013
Page 3
When major projects are proposed, the City's practice has been to urbanize neighborhoods by adding
concrete curb and gutter and an engineered storm sewer system. In order to urbanize neighborhood
streets, storm water treatment is a critical component. In this neighborhood, very little opportunity is
available to conventionally treat stormwater runoff. There is no space available to treat the runoff in
stormwater ponds that meet the City's stormwater quality requirements therefore staff is proposing
to replace the streets and not add concrete curb and gutter throughout the project area.
Staff has completed a storm sewer analysis of this area. The Street Department has inspected this
storm sewer and determined that most sections of pipe under the streets are in poor condition and
need to be replaced. Most of the storm sewer in this neighborhood is galvanized pipe; reinforced
concrete pipe is proposed as the replacement pipe.
Staff has reviewed the storm sewer and determined that some of the pipes should be resized to help
with larger rain events. Staff has contacted residents at the north end of Utica Circle to discuss the
possibility of installing a rain garden on their property.
The existing bituminous curb in the area is proposed to be replaced to keep the drainage pattern the
same. Drain tile is proposed to be incorporated into the design to alleviate some groundwater
problems.
Most of the catch basins in the streets are also proposed to be replaced. Environmental manholes are
proposed to be added at discharge points along the lake and wetland to capture floatable debris and
sediment. Four St. Anthony Falls Laboratory Baffles (or SAFL Baffles) are proposed to be installed
for water quality purposes.
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2013 Street Improvement Project 13 -01
January 14, 2013
Page 4
A map showing the existing storm sewer and drainage boundaries is shown below.
it
Staff had the sanitary sewer system televised in this area. The system is in fair condition with only
minor repairs identified at this time. The repairs are recommended for inflow and infiltration issues.
The main sanitary sewer improvements proposed are 1/I barriers for sanitary manholes.
The watermain in this area is ductile iron. City records do not show any watermain breaks in this
area however, the soils are shown to be somewhat corrosive based on the soils testing. It is
recommended to replace the bolts on the valves and some hydrants at this time. Staff is planning to
add a watermain anode bag that acts as sacrificial material to help prolong the life of the watermains.
In general resident questions /concerns related to storm drainage and assessments. These questions
were answered at the meeting or with follow -up correspondence.
PROJECT FUNDING
Special assessments to the benefitting properties are proposed to pay for a portion of the proposed
2013 Street Improvement Project No. 13 -01 per the City's assessment practice. The remaining
project costs are proposed to be paid from City funds. All the utility improvements are proposed to
be paid for by the associated utility fund. The preliminary funding for all project areas is shown
below:
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2013 Street Improvement Project 13 -01
January 14, 2013
Page 5
Funding Source
Estimated
Total Project
Cost
Budgeted
Assessments /Revolving Assessment Fund
$1,689,900
$1,695,000
Storm Water Management Fund
$119,200
$125,000
Water Utility Fund
$174,870
$175,000
Sanitary Sewer Utility Fund
$28,715
$75,000
$2,012,685
$2,070,000
Each project area would have its own proposed assessment.
GREENWOOD SHORES ESTIMATED PROJECT COSTS
Revolving Assessment:
Stormwater:
Water:
Sanitary Sewer:
Total estimated street cost:
Amount assessed:
Number of assessable units as of 11 -30 -2012:
Estimated Unit Assessment:
$ 624,498
$ 113,510
$ 16,800
$ 9,295
$764,103
$624,498
40% of $624,498 = $249,799
85
$249,799 - 85 = $2,938.81
Proposed terms for the assessments are eight (8) years at 6% interest. The interest rate will be
adjusted at the time of awarded contract based on the prime rate plus 2 %. The cost estimates
includes 5% indirect costs and 8% contingency. The estimated unit assessment presented at the
November, 2012 open house was $3,125.19.
Public hearing notices have been mailed to property owners.
SCHEDULE
The anticipated project schedule is as follows:
Approve Plans & Specs; Authorize Ad for Bid
Accepts Bids /Award Contract; Assessment Hearing
Project Begins
Substantial Completion
Attachments: 1. CIP Pages
2. Resolution
February 25, 2013
April 22, 2013
June, 2013
August 30, 2013
g: \eng \public \_2013 projects \13 -01 street rehab \01 -14 -2013 public hearing - greenwood shores.doc
Capital Improvement Program 2013 thru 2017
City of Chanhassen, MN
Project# ST -012
Project Name Annual Stree Improvement Program
Account #1 601 xocc -4751
Account #2
Account #3
Account #4
Department Street Improvements
Contact Paul Oehme
Type Improvement
Useful Life Unassigned
Category Streets/Highways
Priority n/a
Total Project Cost: $17,845,000
Annual project to rehabilitate and reconstruct streets in the City. Current 5-year plan shows the following neighborhood areas:
2013 - Greenwood Shores, Melody Hill neighborhoods, Horseshoe Curve, Indian Hill Road, Sandy Hook Road neighborhood, Rice Marsh Lake
trail loop extension
2014 - Dartmouth Drive, Cypress Drive and Kiowa Trail
2015 - Carver Beach area , hes Mar Drive, Lone Cedar, Saddlebrook Pass neighborhood
MSA - Park Road, Park Court and Park Drive
2016 - North Manor Road, WashtaBay Road, Tanagers Lane, Sandpiper Trail, Piper Ridge Lane and Minnewashta Woods Drive
MSA - Kerber Blvd
2017 - Flamingo Drive area and 96th Street
MSA - Lake Drive
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.
Rehabilitation 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
6,400,000
Expenditures
Construction
2013
1,895,000
2014
1,400,000
2015
3,150,000
2016
2,500,000
2017
2,500,000
Total
11,445,000
Total
Total
1,895,000
1,400,000
3,150,000
2,500,000
2,500,000
11,445,000
Prior
Funding Sources
2013
2014
2015
2016
2017
Total
6,400,000
Assessment/Revolving Assess
1,895,000
1,400,000
1,850,000
1,500,000
1,500,000
8,145,000
Total
MSA
1,300,000
1,000,000
1,000,000
3,300,000
Total
1,895,000
1,400,000
3,150,
2,500,000
2,500,000
11,445,000
Budget Impact/other I
This project may decrease maintenance costs
01W
Capital Improvement Program 2013 thm 2017
City of Chanhassen, MN
Project # W-024
Project Name W atermain Replacement
Account #1 700 - 70254751 Account #3
Account #2 Account #4
Description
Department Water System Improvements
Contact Paul Oehme
Type
Improvement
Useful Life
Unassigned
Category
Utilities
Priority
n/a
Total Project Cost: $3,275,000
-ment of existing water main lines in coordination with the reconstruction of the City street projects or minor fixes of water distribution
for street rehabilitation projects.
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
1,500,000 Construction
2013
175,000
2014
700,000
2015
125,000
2016
700,000
2017
75,000
Total
1,775,000
Total Total
175,000
700,000.
125,000
700,000
75,000
1,775,000
Prior Funding Sources
2013
2014
2015
2016
2017
Total
1,500,000 Water Utility Fund
175,000
700,000
125,000
700,000
75,000
1,775,000
Total Total
175,000
700,000
125,000
700,000
75,000
1,775,000
Budget Impact(Other
These projects will decrease maintenance costs.
N
:1-
:D
0
9 115
Capital Improvement Program 2013 thru 2017
City of Chanhassen, MN
Project # SS-014
Project Name Sanitary Sewer Replacement
Account #1 701 - 70254751 - Account #3
Account #2 Account #4
Description
teplacement or rehabilitation of existing sanitary sewer lines in conjunction with the
Department
Sanitary Sewer Improvements
Contact
PaulOehme
Type
Improvement
Useful Life
Unassigned
Category
Utilities
Priority
n/a
Total Project Cost: $1,340,000
i 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.
Prior
Expenditures
2013
2014
2015
2016
2017
Total
550,000
Construction
75,000
300,000
75,000
300,000
40,000
790,000
Total
Prior
Funding Sources
Total 75,000
2013
300,000
2014
75,000
2015
300,000
2016
40,000
2017
790,000
Total
550,000
Sewer Utility Fund
75,000
300,000
75,000
300,000
40,000
790,000
Total
Tom 75,000
300,000
75,000
300,000
40,000
790,000
Budget ImpacMher I
this project will decrease maintenance costs.
..,
CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
DATE: January 14, 2013 RESOLUTION NO:
MOTION BY:
2013-
SECONDED BY:
A RESOLUTION ORDERING IMPROVEMENTS & AUTHORIZING
PREPARATION OF PLANS AND SPECIFICATIONS FOR THE
2013 STREET IMPROVEMENT (GREENWOOD SHORES AREA)
PROJECT NO. 13 -01 -1
WHEREAS, on December 10, 2012, the City Council received the feasibility report for the
2013 Street Improvement Project and called for the public hearing to be held on January 14, 2013
for the 2013 Street Improvement Project (Greenwood Shores area), and
AND WHEREAS, ten days' mailed notice and two weeks' published notice of the hearing
was given, and the hearing was held thereon on the 14 day of January, 2013 which all persons
desiring to be heard were given an opportunity to be heard thereon.
NOW, THEREFORE, BE IT RESOLVED by the Chanhassen City Council:
1. Such improvement is necessary, cost - effective, and feasible as detailed in the feasibility
report.
2. Such improvement is hereby ordered as proposed in the Council resolution adopted
January 14, 2013.
3. Approves the feasibility study and authorizes city staff to prepare plans and specifications
for the 2013 Street Improvement Proj ect No. 13 -01 -1.
Passed and adopted by the Chanhassen City Council this 14 day of January, 2013.
ATTEST:
Todd Gerhardt, City Manager
Thomas A. Furlong, Mayor
YES NO ABSENT