North Carolina eVP #323-P27-04

Chapel Hill Solicits Bids for Legion Pond Dam Repair, Dewatering, and Wetland Construction

The Town of Chapel Hill, North Carolina, is seeking bids for the Legion Pond Dam repair and pond dewatering project to support a future affordable housing development. - Government Buyer: - Town of Chapel Hill, Purchasing and Contracts Manager - Project Scope: - Breaching and demolition of the existing dam and embankment - Dewatering of the existing pond - Construction of a stormwater control measure (constructed wetland) - Reconstruction of the dam embankment with: - Seepage control berm using silty sand (USCS SM, 12-30% fines, max PI 8) - Double stage toe drain system (6-inch perforated pipe, ASTM C33 No. 57 stone, fine aggregate filter) - Filter diaphragm around spillway conduit (ASTM C33 fine aggregate) - Riprap channel protection (NCDOT Riprap Class 1, max stone size 17", min 18" thick, ASTM C33 No. 57 stone bedding, Class 1 geotextile) - Services Required: - Geotechnical quality assurance and control by a licensed geotechnical engineer - Dewatering control and monitoring by a licensed dewatering specialist, including groundwater monitoring and protection of existing structures - Notable Requirements: - Extensive geotechnical investigations and laboratory testing inform design and construction - Adherence to North Carolina Department of Transportation's Standard Specifications for Roads and Structures - Liquidated damages of $250 per day for delays beyond completion dates - No specific OEMs or commercial vendors are named in the solicitation - All bids must be submitted in hard copy; electronic submissions are not accepted

Description

The Town of Chapel Hill is seeking a contractor to furnish all materials, labor, and equipment for the Legion Pond Dam project. The project involves dewatering the existing pond, demolition of the dam and embankment, and managing water flow through the dam during construction. Earth moving equipment such as excavators, loaders, and dump trucks will be used. The project has an expected duration of 120 days, and bids must be submitted in accordance with the instructions outlined in the attachments.

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