Title
Contract No. 2100136
Pipe Hanger Replacement at Hubbell-Southfield CSO Facility
O&M
Body
Agenda of: December 8, 2021
Item No: 2021-476
Amount: $1,642,510.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Interim Chief Executive Officer
Great Lakes Water Authority
DATE: December 1, 2021
RE: Contract No. 2100136
Pipe Hanger Replacement at Hubbell-Southfield CSO Facility
Vendor: Weiss Construction Co., LLC
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA) authorizes the Interim Chief Executive Officer (ICEO) to enter into Contract No. 2100136, "Pipe Hanger Replacement at Hubbell-Southfield CSO Facility" with Weiss Construction Co., LLC at a cost not to exceed $1,642,510.00 for a duration of 548 days; and authorizes the ICEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Hubbell-Southfield CSO was built in 1994 under PC-694. Overhead piping in the basin was constructed using carbon or galvanized steel piping hangers. Due to damp conditions in the basin, as well as the continual presence of chloride (from CSO disinfection) and hydrogen sulfide (commonly present in sewer gases), these hangers have corroded to the point of imminent failure. In fact, a few locations have failed and were repaired as an emergency earlier in 2021. This project seeks to replace the failed hangers with new stainless-steel hangers, which will resist corrosion and are made of an appropriate material for the installation.
JUSTIFICATION
Failure of the piping hangers could result in a cascade failure (domino effect) of other nearby hangers that could cause failure of pipes. The previous pipe hanger failure affected the discharge sampling pump (a permit requirement) and a more serious/widespread failure could cause the basin to be taken out of service and w...
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