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TO: Mayor Richard C. Irvin
FROM: Kurt Muth, Engineering Coordinator
DATE: October 22, 2018
SUBJECT:
A resolution to award the West Branch Downer Place Bridge Water Main Repair project to Superior Excavating Co., P.O. Box 575, Channahon, IL 60410 located in Ward 6.
PURPOSE:
To repair leaks on the 12" water main under the Downer Street Bridge over the west branch of the Fox River.
BACKGROUND:
Annually, the City performs a water main flushing program; this program helps remove sediment from the water mains, and is also an opportunity to operate valves and identify potential maintenance requirements. During the program earlier this year, it was determined that the 12" water main along Downer Place over the west branch of the Fox River had a leak. Normally, standard maintenance of water mains is completed by the City Water and Sewer Maintenance Division, however in some cases it is advisable to utilize the services of a contractor.
This particular water main is insulated and is also suspended under the sidewalk along the north side of the bridge. For these reasons, it was determined that it would be more cost effective to bid this repair publicly rather than attempt to complete the repair with City forces. Based on a preliminary analysis, it appears that the leak is related to a separated joint; field analysis indicates that as many as two additional joints might require repair, which cannot be further delineated at this time due to the presence of the insulation. The contract was bid to allow for an iterative repair process, during which the main will be repaired and then pressurized to determine if additional joints will require repair.
A location map showing the extents of the project is attached as Exhibit A.
DISCUSSION:
Three bids were received, opened, and read aloud on October 12, 2018. The bid tabulation can be seen in the attached Exhibit B. The lowest responsible bid in the amount of $111,000.00 was submitted by Superior Excavating Co...
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