N. Nassau Street Flood Reduction Design Services

The City of Charleston is seeking an engineering consultant to design flood-reduction improvements on N. Nassau Street, including pipe replacement and upsizing, drainage boxes, hydrologic and hydraulic modeling, permitting, construction documents, and bid-phase support.

City of Charleston


General
Open
Oct 30, 2026 06:00 PM
Oct 07, 2026 04:31 PM
Other
Request for Quote/Qualifications (RFQ)
Local
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Contact
eversmanng@charleston-sc.gov
+18435796473
2 George Street, Charleston, SC, USA
Submission Instructions
Mail
City of Charleston Department of Stormwater Management, Attn: Grant Eversmann, 2 George Street, Suite 2100, Charleston, SC 29401
Description

The City of Charleston is seeking an engineering consultant to provide turnkey design and related professional services for the N. Nassau Street Pipe Replacement Project. The project will address chronic flooding between Isabella Street and Newmarket Creek through evaluation and design of pipe replacement and upsizing, drainage improvements, hydrologic and hydraulic modeling, surveying, potholing, geotechnical and environmental investigations, permitting, easement assistance, and construction plans and specifications. Designs must account for tidal influence, projected sea-level rise, multiple design-storm conditions, wetlands, and potential upstream and downstream impacts. The selected consultant will prepare plans at 30% and 90% completion, a basis-of-design report, technical specifications, an engineer's opinion of probable construction cost, permit applications, stormwater pollution prevention documentation, construction bid documents, and bid-phase support. The scope also includes project management, progress reporting, coordination with utilities and regulatory agencies, and assistance during construction bidding. Respondents must demonstrate at least five years of relevant flood-reduction and mitigation design experience, provide at least three comparable project examples, identify key personnel and references, address Small Business Enterprise participation, and submit required professional licenses and insurance documentation.

Classification Codes
NAICS541330Engineering Services
PSCC1NDARCHITECT AND ENGINEERING- CONSTRUCTION: SEWAGE AND WASTE FACILITIES
Smart Codes
stormwater engineering designhydrologic hydraulic modelingflood mitigation permitting
Specifications
Service
Timeline
Oct 07, 2026 08:31 PM-Publication Date
Oct 30, 2026 06:00 PM-Statement of Qualifications Deadline
Nov 1, 2026-Engineering Design Work Commences
Aug 1, 2027-Project Designs Completed
Requirements
Required
  • Liability Insurance
  • Professional Liability Insurance
Required
  • Minimum 3 references
  • Within the last 5 years
  • Client point of contact required for each reference
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