D-5. 2017 Street Rehabilitation Project (Lake Susan Hills): Approve Plans and Specifications; Authorize Advertising for Bids •
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9 CITY OF ClIANIIASSEN
S Chanhassen is a Community for Life-Providing for Today and Planning for Tomorrow
H AS
MEMORANDUM
TO: Paul Oehme, Director of Public Works/City Engineers
FROM: Stephanie Smith, Project Engineer`
DATE: January 23, 2017 G1
SUBJ: 2017 Street Rehabilitation Project No. 17-01: Approve Plans and Specifications;
Authorize the Advertisement of Bids
PROPOSED MOTION
"The City Council adopts a resolution approving the plans and specifications and authorizing
advertisement for bids for the 2017 Street Rehabilitation Project No. 17-01.
City Council approval requires a super majority vote of the City Council present."
BACKGROUND
At the August 22, 2016 work session, staff reviewed with Council the proposed 2017 Street
Rehabilitation in the Lake Susan Hills area.
On September 12, 2016, the City Council authorized preparation of the feasibility study.
On October 18, 2016, staff held an Open House for the proposed project.
On October 24, 2016,the City Council accepted the feasibility study and ordered the public
hearing.
On November 28, 2016, the City Council held the public hearing and authorized the preparation
of plans and specifications.
DISCUSSION
Every year the City considers streets that are in poor condition to be rehabilitated or
reconstructed. For the 2017 Street Rehabilitation Project, staff is proposing to rehabilitate
approximately 1.9 miles of streets in the Lake Susan Hills neighborhood. The street segments
within the proposed project were identified by the City's Pavement Management software in
conjunction with site investigations.
PH 952.227.1100• www.ci.chanhassen.mn.us• FX 952.227.1110
7700 MARKET BOULEVARD • PO BOX 147 • CHANHASSEN • MINNESOTA 55317
Paul Oehme
2017 Street Rehabilitation Project:
Approve Plan&Specifications;Authorize Ad for Bids
January 23,2017
Page 2
The proposed improvements generally consist of reclaiming I. ` }t 7.1117':.7..r.
the pavement surface and the aggregate base underneath the . '�, s,„, Af: ,m,'�6\, l/
pavement. Atypical areas with insufficient base underneath {�� � ?4 • 46 the avement will be reconstructed. Minor draina a ,
VII kat improvements and some draintile installation are also " 7:j
included within the project area. l�� �4 -, .�1.
For the municipal water system, norm '` 9✓`tz-.p' �;
gate valve and hardware
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replacements are proposed along b +� '�,z �V,��v�`410 gi 'I
with minimal hydrant 17 '�=a � ii �j" � °•ySrpoJ,�
replacement. Sanitarysewer ' t" ,�" `v .y led -' I ik+
MS v work proposed includes spot , �r� '�� " 'ticet VI ; . .1 eE
repairs of damaged manhole ' �.M`� "7. w r ,y
structures and inflow/infiltration 'i,ri
.�k'�`'� s4J�;lam 0,.. ; 4
remediation within the ��i• BI=�+.�. ' `4
be manholes. PAIIP
.*
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The approximate 1.9 miles of streets in the project area were t 4� '.
constructed between 1989 and 1993. Sealcoats were ��e�► ,, p
1�
performed in 1993, 1997 and 2005. A non-structural overlay �_:- '•. '� ' - ��.
was done on the northern leg of Lake Susan Hills Drive, r. ms•�'' lls,'
Egret Court, Heron Drive and Ibis Court in 2002. All streets within the project are urban residential
streets with concrete curb and gutter. Lake Susan Hills Drive, Flamingo Drive and Heron Drive
have a 5-foot concrete sidewalk on one side.
Pavement condition scores generated by the City's pavement management software were considered
when determining street segments within the proposed rehabilitation area. Street segments are
surveyed every three years and a score or Overall Condition Index (OCI) is assigned to the street
segment. An OCI of 100 represents a new road. The streets within the Lake Susan Hills
neighborhood were last surveyed in 2015, and the OCI ranged from 30.3 to 65.6.
The proposed standard improvements include reclaiming the full depth of bituminous plus 4.5"-6.5"
of the aggregate base of the street. The top four inches of reclaimed material will be removed and
two, 2-inch lifts of asphalt are proposed to be installed.
Select sidewalk panel replacement such as those associated with ADA ramp updates will be included
with this project. Other sidewalk maintenance efforts such as grinding or jacking panels may be bid
as a separate project and funded out of the annual maintenance.
Hardware replacement is proposed on gate valves and will include the installation of zinc anode bags
to forestall corrosion. Minimal hydrant replacement is proposed for this project.
Sanitary sewer manholes with degraded concrete rings are proposed to have the rings replaced with
this project. Infiltration barriers and sealed manhole covers are proposed for all sanitary structures to
prevent future infiltration. The City's Public Works department will repair the infiltration between
manhole joints in-house rather than be included with the proposed project.
Paul Oehme
2017 Street Rehabilitation Project:
Approve Plan&Specifications; Authorize Ad for Bids
January 23,2017
Page 3
A quantity of draintile is proposed for this project for installation at the back of curb, as there is a
record of resident concerns about subsurface drainage in the project area. Approximately 80 feet of
drainage structure replacement is proposed to address problems observed in several drainage
structures during inspection. Due to the shallow grade of the northern portion of Flamingo Drive,
the project is proposed to include analysis of warrants for additional catch basins to pick up
stormwater flow on the street.
Because there are no additional impervious surfaces that will be added to the 2017 project area, this
project would not trigger any of the Federal, State or Local surface water regulations. The proposed
project includes minor water main and sanitary sewer repairs but would not require a permit from the
MN Department of Health or the MN Pollution Control Agency,respectively. Because Lake Susan
Hills Drive has two intersections with Powers Boulevard (CSAH 17), a work in right-of-way permit
will be required from Carver County.
PROJECT FUNDING
Special assessments to the benefitting properties are proposed to pay for a portion of the proposed
2017 Street Improvement Project No. 17-01 per the City's Assessment Policy. The remaining
project costs are proposed to be paid from City funds. All utility improvements are proposed to be
paid for by the associated utility fund. The preliminary funding is shown below:
Funding Source Project Cost Amount
Budgeted
Assessments/Revolving Assessment $1,105,000 $1,100,000
Fund
Stormwater Management Fund $90,000 $500,000
Water Utility Fund $75,000 $75,000
Sanitary Sewer Utility Fund $127,000 $210,000
$1,397,000 $1,885,000
*Budgeted Amounts are from the proposed 2017 CIP Budget
Unit assessments are proposed, meaning each parcel determined to be a benefitting property at the
time the assessment roll is approved will pay the same amount. Final assessment amounts will be
based on the construction bid price.
Paul Oehme
2017 Street Rehabilitation Project:
Approve Plan&Specifications;Authorize Ad for Bids
January 23,2017
Page 4
Preliminary estimated assessments are detailed below:
Total Estimated Street Cost: $1,105,000
40% assessed: 40% of$1,105,000 = $442,000
Number of assessable units: 187
Estimated unit assessment: $442,000± 187 units= $2,400/unit*
*Estimated assessments have been rounded to the nearest $100
The cost estimate includes a 10% construction contingency and a 5% estimate of indirect costs.
SCHEDULE
The following schedule is proposed contingent upon City Council approval to proceed with the
project:
Bid Opening February 15, 2017
Assessment Hearing; Award Contract March 27, 2017
Construction Start June, 2017
Substantial Completion August, 2017
Attachments: 1. Resolution
2. CIP Sheets
g:\eng\public\_2017 projects\17-01 street rehab\conununication\170123_cc_approve p&s authorize ad for bid.docx
CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES,MINNESOTA
DATE: January 23,2017 RESOLUTION NO: 2017-XX
MOTION BY: SECONDED BY:
A RESOLUTION APPROVING PLANS AND SPECIFICATIONS
AND AUTHORIZING AD FOR BIDS FOR THE 2017 STREET
REHABILITATION(LAKE SUSAN HILLS AREA)
PROJECT NO. 17-01
WHEREAS,pursuant to the resolution passed by the Council on November 28, 2016,the
City Engineer has prepared plans and specifications for the 2017 Street Rehabilitation(Lake Susan
Hills Area) Project and has presented such plans and specifications to the Council for approval;
NOW,THEREFORE,BE IT RESOLVED that the Chanhassen City Council:
1. Such plans and specifications, a copy of which can be reviewed at the office of the City
Engineer, are hereby approved.
2. The city clerk shall prepare and cause to be inserted in the official city newspaper and
QuestCDN.com, an advertisement for bids upon the making of such improvement under such
approved plans and specifications. The ad shall be published at least three times, shall specify the
work to be done, shall state that bids will be opened and that the responsibility of the bidders will
be considered by the Council at 7:00 PM on Monday,March 27,2017, for the 2017 Street
Rehabilitation(Lake Susan Hills Area)Project No. 17-01, in the Council Chambers of the City
Hall. Any bidder whose responsibility is questioned during consideration of the bid will be given
an opportunity to address the Council on the issue of responsibility. No bids will be considered
unless sealed and filed with the clerk and accompanied by a bid security payable to the clerk for 5%
of the amount of such bid.
Passed and adopted by the Chanhassen City Council this 23rd day of January,2017.
ATTEST:
Todd Gerhardt, City Manager Denny Laufenburger,Mayor
YES NO ABSENT
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Capital Improvement Program 2017 thru 2021
Department Street Improvements
City of Chanhassen, MN Contact Paul Ochme
Type Improvement
Project# ST-012 Useful Life Unassigned
Project Name Annual Street Improvement Program Category Streets/Highways
Account#1 601-xxxx-4751 Account#3 Priority n/a
Account#2 Account#4
Description Total Project Cost: 830,680,000
Annual project to rehabilitate and reconstruct streets in the City. Current 5-year plan shows the following neighborhood areas:
2017-Minnewashta Manor area and Lake Susan Hills Drive area
MSA-Park Road and Park Place
2018-Orchard Lane area
MSA-Lake Drive East and Dakota Ave(Highway 5 to Lake Drive East)
2019-Choctaw area,Kurvers Point area and 96th Street
MSA-Minnewashta Parkway overlay and trail
2020-Chan View area
MSA-Lake Lucy Road(Highway 41 to Galpin Blvd)and trail
2021 -Stone Creek area and Ches Mar 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 when utilities 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
considerthe merits of the project and scope of work.
Prior Expenditures 2017 2018 2019 2020 2021 Total
16,405,000 Construction 4,375,000 2,700,000 2,300,000 3,800,000 1,100,000 14,275,000
Total Total 4,375,000 2,700,000 2,300,000 3,800,000 1,100,000 14,275,000
Prior Funding Sources 2017 2018 2019 2020 2021 Total I
16,405,000 Assessment/Revolving 3,275,000 1,600,000 1,100,000 3,300,000 1,100,000 10,375,000
Assess Fund
Total MSA 1,100,000 1,100,000 1,200,000 500,000 3,900,000
Total 4,375,000 2,700,000 2,300,000 3,800,000 1,100,000 14,275,000
Budget Impact/Other I
This project may decrease maintenance costs.
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ICapital Improvement Program 2017 thru 2021 Department Water System Improvements
City of Chanhassen, MIN Contact Paul Oehme
I Project# W-024 Type Improvement
Useful Life Unassigned
Project Name Watermain Replacement n Category Utilities
I Account#1 700-7025-4751 Account#3 Priority n/a
Account#2 Account#4
Description Total Project Cost: $5,220,000
IReplacement of existing water main lines in coordination with the reconstruction of the City street projects or minor fixes of water distribution
system for street rehabilitation projects.
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mJustification
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
1 project in the City.
1 Prior Expenditures 2017 2018 2019 2020 2021 Total
3,325,000 Construction 75,000 770,000 100,000 850,000 100,000 1,895,000
Total Total 75,000 770,000 100,000 850,000 100,000 1,895,000
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Prior Funding Sources 2017 2018 2019 2020 2021 Total
3,325,000 Water Utility Fund 75,000 770,000 100,000 850,000 100,000 1,895,000
Total Total 75,000 770,000 100,000 850,000 100,000 1,895,000
I Budget Impact/Other
These projects will decrease maintenance costs.
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Capital Improvement Program 2017 thru 2021 Department Surface Water ManagementI
City of Chanhassen, MN Contact Paul Oehme
Project# SWMP-019 Type Improvement 1
Useful Life Unassigned
Project Name Street Improvement Projects-Storm Water Mgmt
Category SWMP
Account#1 720-7025-4751 Account#3 Priority n/a
Account#2 Account#4
Description Total Project Cost: $2,685,000
An annual amount set aside for storm water management infrastructure construction or expansion associated with street improvement projects
undertaken by the engineering and public works departments. 11
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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.
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Prior , Expenditures 2017 2018 2019 2020 2021 Total 1
1525,000 Construction 500,000 250,000 80,000 250,000 80,000 1,160,000
Total Total 500,000 250,000 80,000 250,000 80,000 1,160,000
Prior Funding Sources 2017 2018 2019 2020 2021 Total
1,525,000 Surface Water Utility Fund 500,000 250,000 80,000 250,000 80,000 1,160,000
Total Total 500,000 250,000 80,000 250,000 80,000 1,160,000 l
Budget Impact/Other
Inventory,inspection and maintenance of new infrastructure will be required. Citywide.No map 1
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Capital Improvement Program 2017 thru 2021
Department Sanitary Sewer Improvements
City of Chanhassen, MN Contact Paul Oehme 1
Project# SS-014 Type Improvement
Useful Life Unassigned
Project Name Sanitary Sewer Replacement
Category Utilities
Account#1 701-7025-4751 Account#3 Priority n/a
Account#2 Account#4
Description Total Project Cost: $2,110,000
Replacement or rehabilitation of existing sanitary sewer lines in conjunction with the reconstruction of the City street.
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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.
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Prior , Expenditures 2017 2018 2019 2020 2021 Total
1,300,000 Construction 210,000 250,000 50,000 250,000 50,000 810,000 1
Total Total 210,000 250,000 50,000 250,000 50,000 810,000
Prior Funding Sources 2017 2018 2019 2020 2021 Total I
1,300,000 Sewer Utility Fund 210,000 250,000 50,000 250,000 50,000 810,000
Total Total 210,000 250,000 50,000 250,000 50,000 810,000
Budget Impact/Other
This project will decrease maintenance costs.
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