Title
Proposed Amendment No. 3
Contract No. 1802575
GLWA Conveyance System Engineering Services
CIP #260204
Body
Agenda of: April 27, 2022
Item No.: 2022-137
Amount: Original Contract $3,149,897.00
Amendment No. 1 0.00
Amendment No. 2 1,942,907.14
Proposed Amendment No. 3 382,004.00
Total Revised Contract $5,474,808.14
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: April 1, 2022
RE: Proposed Amendment No. 3
Contract No. 1802575
GLWA Conveyance System Engineering Services
Vendor: Brown and Caldwell, LLC
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. 1802575 Proposed Amendment No. 3 "GLWA Conveyance System Engineering Services" with Brown and Caldwell, LLC, with an increased cost of $382,004.00 for a total cost not to exceed $5,474,808.14, with no increase in time for a duration of 60 months; and authorizes the ICEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA's Sewer Conveyance System has approximately 130 miles of trunk sewers and 51 miles of interceptors. The Connors Creek Sewer System (CCSS) is a major sewer on the eastern side of Detroit. It extends from 8 Mile Road west of Van Dyke Avenue to a gate structure close to the intersection of Conner Street and Jefferson Avenue. The alignment is approximately 7 miles long and was constructed between 1924 and 1926. The reach of sewer inspected is partially of brick construction with the remaining sewer being cast-in-place concrete and varies in size from a 24-inch to 13-ft 6-inch diameter before it transitions to an arch approximately 17-inch high by 22-ft wide as it passes bel...
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