HomeMy WebLinkAbout07/16/2013 Backyard Drainage Program 2013Prospect
Mount Prospect Public Works Department
l INTEROFFICE MEMORANDUM
TO: VILLAGE MANAGER MICHAEL E. JANONIS
FROM: PROJECT ENGINEER
DATE: JULY 10, 2013
SUBJECT: 2013 BACKYARD DRAINAGE PROGRAM (NOT TO EXCEED $100,000)
Background
Many properties in Mount Prospect experience recurring backyard flooding after any significant
rain event. Often water will pond in their yards and remain there for a considerable length of time.
On May 13, 2008, the Village Board authorized Staff to proceed with the Backyard Drainage
Program in an effort to assist residents in reducing the backyard flooding they experience.
Staff has received requests for assistance through the Backyard Drainage Program for over 200
residential properties. Staff identified several of the properties experiencing the worst flooding,
based upon such criteria as depth of ponding, area of inundation, number of properties affected,
structures impacted, and duration of ponding. Staff then surveyed the existing conditions, and
prepared plans to better drain each of these properties. Each design includes an inlet in the
backyard draining through a pipe connecting to the existing sewer system in the public right of way.
To protect the receiving system from being overwhelmed, each design includes a restrictor that will
control and slow the discharge into the reducing sewers. These restrictors, while serving to protect
the Village sewer systems, may cause water to pond in the backyards during heavy rain events for
a short duration. To accommodate this ponding water, rain gardens will be installed around the
inlets. These rain gardens will provide a place for any ponding water to accumulate, and provide a
mechanism for the water to infiltrate into the ground quickly.
Following construction, the property owners will be responsible for maintenance of the storm sewer
and rain gardens on the private properties; however, it shall be the Village's responsibility to
maintain the new storm sewer in the public right of way. Each design was contained on a single
property, avoiding the need for easements or agreements between property owners.
Bid Results
Sealed bids for the 2013 BACKYARD DRAINAGE PROGRAM were publicly opened and read
aloud on July 8, 2013 at 1:00 P.M. A Notice to Bidders was published in a local newspaper as
required and invitations were sent to contractors familiar with this program. A mandatory pre -bid
meeting was held on June 24, 2013 at 10:00 A.M. to discuss the intent and specifics of the
program, as well as to answer any questions the contractors may have had in formulating their
bids. Eight (8) contractors attended the pre -bid meeting.
Four (4) of those contractors submitted bids for this project. The bids ranged from a low of
$85,348.50 by Concrete Etc., Inc., to a high of $120,195.50 by Phoenix & Associates. The
Engineer's estimate for the project was $104,759.00.
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2013 Backyard Drainage Program (Not to Exceed $100,000)
July 10, 2013
Each of the bidders submitted a bid bond in the amount of 5% of the total bid as required in the bid
proposal packet. All bids were checked for their accuracy. No errors were found. All bidders
correctly signed their bids and bid bonds. Below is a summary of the bids:
Concrete Etc., Inc. $ 85,348.50
Martam Construction, Inc. $ 99,925.00
Sheridan Plumbing & Sewer $118,800.00
Phoenix & Associates $120,195.50
Engineer's Estimate $104,759.00
Discussion
The low bidder, Concrete Etc., Inc., successfully completed work on several Village projects,
including the 2011 Backyard Drainage Program.
This is the third year of the Backyard Drainage Program. During the first year of the program in
2009, we completed installation at eleven (11) sites. During the second year of the program in
2011, we completed installation at seven (7) sites. Funds were not available in either 2010 or
2012, so no construction was performed under the Backyard Drainage Program in those years.
We estimate that installation can be completed on four (4) sites. However, because the cost is
based on estimated quantities, the project will be evaluated throughout the course of construction
to determine if any sites can be added, or have to be deferred until additional funds become
available.
Recommendation
Because of the estimated quantities, and to have the capability to extend the program to additional
sites if the opportunity presents, I recommend the contract for the 2013 BACKYARD DRAINAGE
PROGRAM be awarded to the budget limit of $100,000 to the low bidder, Concrete Etc., Inc.
Please include this item on the July 16 Village Board Meeting Agenda.
'&& -
Charles M. Linde o , P.E.
I concur with the above recommendation.
Director of Ffublic'Workd Seari Dorsey
cc: Village Clerk Lisa Angell
H: \Engineering \Drainage \Backyard Drainage Program \2013 \Recommendation.docx