Storm Drainage Mapping

The City of Charleston has various maps showing the stormwater drainage system.

• Geographic Information System (GIS) Stormwater Mapping Data - This link takes you to our GIS platform for downloading and discovering available data, the stormwater data contains various layers showing information gathered about stormwater structures as well as data digitized from prior maps
• Charleston Peninsula Tidal Drains Map Circa 1878 (PDF)
• Charleston Peninsula Drainage Map Circa 1950 (PDF)

Master Drainage and Floodplain Management Plan 1984

• 1-4. Title Page, TOC, Purpose and Scope, Study Area, Design Criteria (PDF)
• 5. Evaluation of Existing Stormwater Facilities (PDF)
• 6. Peninsula Evaluation (PDF)
• 7. West Ashley Evaluation (PDF)
• 8. James and Johns Islands Evaluation (PDF)
• 9a. Peninsula Improvements (PDF)
• 9b. Peninsula Improvements (PDF)
• 9c. Peninsula Improvements (PDF)
• 10a. West Ashley Improvements (PDF)
• 10b. West Ashley Improvements (PDF)
• 10c. West Ashley Improvements (PDF)
• 11a. James and Johns Islands Improvements (PDF)
• 11b. James and Johns Islands Improvements (PDF)
• 12. Construction Program (PDF)
• 13. Floodplain Management Program (PDF)
• 14a. Peninsula Existing (PDF)
• 14b. Peninsula Existing (PDF)
• 15a. West Ashley Existing (PDF)
• 15b. West Ashley Existing (PDF)
• 15c. West Ashley Existing (PDF)
• 16. James and Johns Islands Existing (PDF)
• 17. Appendix B and C (PDF)