Title
Contract No. 2204611
CSO Outfall Rehabilitation - Phase V
CIP# 260510 / BCE Score: 73.8
Body
Agenda of: June 28, 2023
Item No.: 2023-214
Amount: $10,285,619.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: May 26, 2023
RE: Contract No. 2204611
CSO Outfall Rehabilitation - Phase V
Vendor: LGC Global, Inc.
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 Chief Executive Officer (CEO) to enter into Contract No. 2204611, “CSO Outfall Rehabilitation - Phase V” with LGC Global, at a cost not to exceed $10,285,619.00 for a duration of 638 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA has been systematically reviewing and developing repairs to their outfall infrastructure along the Detroit and Rouge Rivers. The outfalls function as the interface between collector sewers throughout the City of Detroit (and beyond) and various interceptor sewers. In general, the outfalls serve to redirect dry weather flow to the Water Resource Recovery Facility (WRRF) and allow relief of wet weather flows to the nearby river during wet weather flow. In the past few years, GLWA has completed the rehabilitation of over two dozen outfalls in four separate phases. This contract proposes the rehabilitation of 13 additional Detroit River Interceptor (DRI) outfalls, generally located along Jefferson Ave. from Fischer St. to Cary St. Outfalls identified for repair include B04, B12, B25, B26, B30, B32, B33, B34, B35, B37, B38 and B44. Portions of these outfalls date to the mid-19th century, and all have typically been modified several times since their original construction. Recent inspections of these outfalls have indicated deterioration consistent with assets of this age.
JUSTIFICATION
Based on the detailed engineering inspections performed in 2022 as part of GLWA Contract No. 2003443 “Study and Design for Conveyance System”, each of the subject outfalls was identified to have areas requiring rehabilitation, with numerous running and gushing leaks, spalled and deteriorated concrete, eroded and missing bricks, deteriorated lateral taps, and other defects. These defects will continue to deteriorate and accelerate in magnitude if not repaired. Rehabilitation of the 13 outfalls identified above is recommended to address existing deterioration and to extend the service life and improve the reliability of these assets.
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: Wastewater Construction Bond
Cost Center: Wastewater Field Engineering
Expense Type: Construction (5421-892411.000-616900-260510)
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year
FY 2024 Plan $ 4,542,000.00
FY 2025 Plan 5,453,000.00
FY 2026 Plan 5,453,000.00
FY 2027 Plan 553,000.00
Financial Plan Estimate $ 16,001,000.00
Proposed Contract Award 10,285,619.00
Estimating Variance $ 5,715,381.00
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on June 14, 2023.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.