Stormwater Master Plan- Final Draft Approved by Town Council March 18, 2025

• Appendix A - Inventory of Drainage Infrastructure (PDF)
• Appendix B - Existing Conditions Flood Analysis (PDF)
• Appendix C - Proposed Improvements (PDF)
• Appendix D - Proposed Conditions Flood Analysis (PDF)
• Appendix E - Cost Estimates (PDF)
• Appendix F - Project Prioritization and Ranking Analysis (PDF)
• Town of Sullivan's Island - Island-Wide Stormwater Master Plan and Infrastructure Improvement Strategy Report - February 19, 2025 (PDF)
• Town of Sullivan's Island - Island-Wide Stormwater Master Plan and Infrastructure Improvement Strategy Report - March 18, 2025 (PDF)

Open House & Town Council Presentations

Final Council Presentation to  March 18, 2025- 6:00pm

Please join the Town of Sullivan’s Island and Seamon Whiteside Associates on March 18, 2025 for a Town Council presentation of the Island’s Stormwater Master Plan.

Open House- October 15, 2024- 5:00 p.m. to 6:00 p.m. Council Presentation- 6:00 p.m.

Please join the Town of Sullivan’s Island and Seamon Whiteside Associates for an open house and Town Council presentation of the Island’s Stormwater Master Plan.

Town staff and the Town’s engineering consultants will be on hand to answer any questions on stormwater issues and discuss the various elements of the Stormwater Master Plan, along with an overview of various Island-wide stormwater improvements (SCIIP grant). We look forward to hearing your input!

Project Documents

• Stormwater Master Plan and Infrastructure Improvement Request for Qualifications (PDF)
• Click here to review Stormwater Master Plan and Infrastructure Improvement Addendum #1 (PDF)
• Notice of Intention to Award Contract for the Stormwater Master Plan and Infrastructure Improvement (PDF)
• Projected Project Schedule (PDF)
• Stormwater Master Plan- Final Draft by Approved by Town Council on March 18, 2025
  • Appendix A - Inventory of Drainage Infrastructure (PDF)
  • Appendix B - Existing Conditions Flood Analysis (PDF)
  • Appendix C - Proposed Improvements (PDF)
  • Appendix D - Proposed Conditions Flood Analysis (PDF)
  • Appendix E - Cost Estimates (PDF)
  • Town of Sullivan's Island - Island-Wide Stormwater Master Plan and Infrastructure Improvement Strategy Report - February 19, 2025 (PDF)
  • Town of Sullivan's Island - Island-Wide Stormwater Master Plan and Infrastructure Improvement Strategy Report - March 18, 2025 (PDF)