HomeMy WebLinkAboutStaff Report 4.C 09/19/2016Agenda Item #4.0
1
DATE: September 19, 2016
TO: Honorable Mayor and Members of the City Council through City Manager
FROM: Dan St. o SCE" DDirector, Public Works and Utilities
Lacey mm :E. — Deputy Director, Public Works and Utilities
SUBJECT: Resolution Accepting Completion of the Construction Contract for Browns Lane
Recycled Water Main Replacement Project, City Project No. C66401301
RECOMMENDATION
It is recommended that the City Council adopt the attached Resolution Accepting Completion of
the Construction Contract for Browns Lane Recycled Water Main Replacement Project, City
Project No. C66401301.
BACKGROUND
The existing recycled water transmission main was built in 1981 and conveys recycled water from
the Ellis Creek Water Recycling Facility (ECWRF) from the south side of Lakeville Highway up
to Browns Lane to Booster Pump Station No. 2. This recycled water main is critical to the system
because it supplies all recycling customers. The previous transmission main was asbestos concrete
pipe, which experienced regular failure at its joints. This project involved installing 2,000 feet of
redundant high - pressure 24" ductile iron pipe (DIP) designed to carry all recycled water flow on
Brown's Lane. The old line will be retained as an emergency backup line. This project will
improve service and reliability, increase redundancy, and reduce repair and maintenance costs.
The project location is shown on Attachment 2.
DISCUSSION
The project was awarded to Mountain Cascade Inc., on October 5, 2015. The Contractor was
allowed a delayed start of the project due to inclement winter weather, and construction occurred
from February 2016 to July 2016. The project was managed and inspected by City staff. This
project included the following work:
1. Installation of approximately 2,000 feet of 24" DIP Recycled Water Main
2. Bore and jacking operation under Lakeville highway near the Ellis Creek plant
3. Tie -ins to the existing recycling piping system at Booster pump stations and irrigation tie-
in on Browns Lane
4. Grind and overlay one full width lane on Browns Lane per county requirements
5. Miscellaneous work including dewatering, cathodic protection, traffic control, etc.
The construction contract was awarded to Mountain Cascade Inc. for $1,032,550. The final
contract amount was less than awarded because the actual length of ductile iron pipe installed for
the project was less than anticipated since the limits of pipe replaced from a previous project were
unknown prior to construction. Additionally $445,000 was budgeted as in case hazardous material
was encountered. Fortunately these funds were not needed. The final construction cost of this
project is $945,226, which included one change order for $25,000. This change order included
additional work because the existing recycled water main turned out to be 5.5 feet deeper than
anticipated. This required the contractor to lower the jack and bore elevation of the new recycled
water main by 5.5 feet to clear the utility conflict, which resulted in deeper bore and receiving pit
excavation, redesign and installation of deeper shoring system. There are no outstanding claims or
inspection issues and the project is currently functioning as anticipated. Following the acceptance
of the project, the City Clerk will file a Notice of Completion with the Sonoma County Recorder
and the Finance Department will release the contract retention account to the contractor within 60
days.
The proposed action meets Council Goal: "Plan for and implement priority capital projects as
funding permits ".
FINANCIAL IMPACTS
Council approved a project budget of $1,826,000 in the CIP to be funded from Wastewater
Capital funds. The total cost for the project, including construction contract, final quantities,
change orders, construction management, and inspection, is $1,201,187 as shown in the following
table.
Project Phase
Budget at the
time of Contract
Award
Final Project
Costs
Planning /Environmental
$5,000
$590
Design
$109,450
$93,371
Construction Contract
$ 1,032,550
$945,226.00
Legal & Administration
$12,000
$2,000
Construction Management
$173,000
$105,000
City Furnished Materials
$20,000
Contingency
$445,000
CIP Overheads
$49,000
$35,000
TOTAL
$1,826,000
$1,201,187
Funding Sources
Wastewater Capital $1,826,000
Any unused funds will be returned to the Waste Water Capital Fund for future projects.
2
TTACHMENTS
1. Resolution
2. Location Map
Attaclmlent 1
RESOLUTION ACCEPTING COMPLETION OF THE CONSTRUCTION CONTRACT
FOR THE BROWNS LANE RECYCLED WATER MAIN REPLACEMENT PROJECT
CITY PROJECT NO. 066401301
WHEREAS, in accordance with Section 68 of Article X of the City of Petaluma Charter
and Municipal Code, California Public Contract Code Section 20162 and other applicable law,
City staff prepared construction bid documents and solicited bids for the project; and
WHEREAS, the Project was bid on August 13, 2015, and six (6) bids were received and
opened on September 9, 2015 in accordance with applicable law; and
WHEREAS, the lowest responsible bid for the Project was submitted by Mountain
Cascade, Inc. from Livermore, CA for $1,032,550; and
WHEREAS, by Resolution No. 2015 -157, adopted on October 5, 2015, the City Council
found the bid of $1,032,550 for the Project to be the lowest responsive bid, awarded the Project
to Mountain Cascade Inc., in the amount of $1,032,550, conditioned on Mountain Cascade Inc.,
timely executing the Project contract and submitting all required documents and authorized and
directed the City Manager to sign the Project contract on behalf of the City; and
WHEREAS, the following contract change orders (CCO) affecting the project amount
have been approved:
e Order Number I Description I Amount
CCO #1 Lowering the jack and bore elevation, $25,000
redesign shoring, excavate 5.5feet deeper
bore and receiving pit not anticipated in
original scope of the contract
Total Change Orders $25,000
; and
WHEREAS, the final contract amount, as amended, including all change orders,
overruns, and underruns is $945,226 and is within the approved project budget; and
WHEREAS, City staff have inspected the project and determined that it has been
completed in accordance with the contract requirements, and the Contractor's continuing
warranty and other obligations pursuant to the contract; and
WHEREAS, based on the foregoing, staff recommends acceptance of the project on
behalf of the City.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Petaluma as
follows:
4
The contract titled Browns Lane Recycled Water Main Replacement Project, with the
final contract amount of $945,226, is accepted as complete, subject to the
Contractor's continuing warranty and other obligations pursuant to the contract.
2. The City Clerk is hereby authorized and directed to file a Notice of Completion
concerning the project with the Sonoma County Cleric's Office within 10 days of the
date of this Resolution.
The Public Works and Utilities Director is hereby authorized and directed to release
all undisputed retention not subject to pending change orders within 60 days of the
date of this Resolution and in accordance with the terms of the Project contract,
California Public Contract Code Section 7107 and applicable law.
Attachment 2
BROWNS LANE RECYCLED WATER MAIN REPLACEMENT PROJECT
PROJECT NO. C66401301
col
0
LOCATION MAP
SF<
/ ^` \ 776J
;0-
� \ .
CT
�s
PROJECT S
00
�o
Date :OCT OBER 5, 2015
N City of Petaluma
PROJECT SITE E Public Works and Utilities
S Department
z�sa