Richland County Opengov #RC-817-Q-27

Civil Engineering Services for Palmerston North Detention Pond Retrofit

Richland County is seeking a civil engineering team to retrofit the Palmerston North detention pond and its downstream outfall channel. - Buyer: Richland County Government, Public Works Department, Stormwater program, South Carolina; solicitation RC-817-Q-27. - Project area and purpose: The existing pond and outfall channel near Bronlow Drive, Bronlow Way, and Hope Creek Road. The retrofit is intended to restore compliance, improve stormwater quality and quantity performance, and limit construction and long-term maintenance costs. - Requested services: Surveying, mapping, construction staking and as-built surveying; subsurface exploration and soil, infiltration, and sediment testing; conceptual and detailed stormwater engineering; permitting; bid-ready plans, specifications, and cost estimate; bid review and contractor recommendation; construction administration, inspection, and closeout; and maintenance planning. - Notable technical requirements: Survey deliverables include 2D and 3D mapping, one-foot contours, spot elevations, no more than 50-foot shot spacing along longitudinal features or break lines, at least two benchmarks, and South Carolina NAD 83 (2011) horizontal and NAVD 88 vertical datums. Construction support includes at least weekly site visits during active construction, full-time inspection during critical operations, daily reports, and a one-year warranty inspection. - Permitting and deliverables: Scope includes County development review materials, applicable NPDES submissions to the South Carolina Department of Environmental Services (SCDES) Bureau of Water (BOW), stormwater pollution prevention materials, hydraulic and hydrologic calculations and mapping, and stormwater BMP design as needed. Deliverables include bid documents, itemized cost estimates, certified as-built records, closeout materials, and a maintenance plan. - OEMs, products, and vendors: No OEMs, product purchases, part numbers, engineering firms, or other service vendors are named. No product quantities are specified. - Performance period: Overall duration is not stated and will be established after the Notice to Proceed; the scope includes a one-year warranty inspection.

Description

Richland County seeks professional civil engineering services to design and prepare plans and specifications for retrofitting an existing stormwater detention pond and its outfall channel in the Palmerston North neighborhood. The work includes surveying and mapping, subsurface and sediment testing, stormwater design and permitting, construction documents, and construction administration through project closeout. The project aims to improve pond water quality and quantity efficiency, improve the downstream channel, and restore infrastructure compliance while meeting County design standards. A technical proposal is required, while a separate price proposal is optional; award is not guaranteed and will not be based on cost.

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