Title
Proposed Change Order No. 1
Contract No. 2101255
Belle Isle Seawall Rehabilitation
CIP #116005 / BCE Score: 63.4
Body
Agenda of: October 25, 2023
Item No.: 2023-358
Amount: Original Amount $1,039,058.63
Proposed Change Order No. 1 1,119,186.77
Total Revised Contract $2,158,245.40
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: September 29, 2023
RE: Proposed Change Order No. 1
Contract No. 2101255
Belle Isle Seawall Rehabilitation
Vendor: Dean Marine & Excavating, 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 Chief Executive Officer (CEO) to enter into Contract No. 2101255, Proposed Change Order No. 1, "Belle Isle Seawall Rehabilitation" with Dean Marine & Excavating, Inc., at an increased cost of $1,119,186.77 for a total cost not to exceed $2,158,245.40 and an increased duration of 183 days for a total duration of 898 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA's Belle Isle Intake was constructed in the early 1930s at the northeast tip of Belle Isle. It replaced a previously constructed (circa 1905) river intake. The Belle Isle Intake consists of a large manmade lagoon surrounded by earthen and stone dikes, an intake building with raw water instrumentation and debris bar racks, an emergency water inlet, and a chemical feed system for treating the intake and raw water tunnels for zebra mussels each year. The intake system serves three of GLWA's five water treatment plants - Northeast, Springwells, and Water Works Park. The intake system is capable of supplying 940 million gallons per day (MGD), without boosting, to the three plants.
Contract No. 2101255 is a design-build contract th...
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