Title
Contract No. 2100891
Rehabilitation of Outfall B-39
CIP# 260508 / BCE Score: N/A
Body
Agenda of: September 22, 2021
Item No.: 2021-352
Amount: $9,742,646.35
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: September 1, 2021
RE: Contract No. 2100891
Rehabilitation of Outfall B-39
Vendor: LGC Global, Inc.
MOTION
Upon recommendation of Cheryl Porter, Chief Operating Officer - Water and Field 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. 2100891 "Rehabilitation of Outfall B-39" with LGC Global, Inc., at a cost not to exceed $9,742,646.35 for a duration of 670 days; and authorizes the Interim CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Outfall B-39 is located at the extension of Junction Street south of W. Jefferson Avenue in Detroit. A portion of the outfall is adjacent to the idled Mistersky Power Plant, with the remainder located adjacent to Waterfront Petroleum Terminal, a bulk liquid storage and marine fuel supplier. Previous CCTV, ROV, and diver inspections of Outfall B-39 were conducted in 2017 and again in 2020. The last inspection indicated that the existing 13-foot internal diameter outfall sewer is in poor condition and in need of repair. Based on the completed inspections, a repair plan was formulated consisting of the construction of an access and lining shaft near the river and slip-lining the 13-foot outfall sewer with 10-foot internal diameter glass fiber reinforced polymer mortar pipe. The outfall functions to divert dry weather sewer flow to the Detroit River Interceptor (DRI), while allowing wet weather flows of sufficient size to overflow to the Detroit River. The overflow control mechanism of Outfall B-39 consists of two stainless...
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