Hydrographic Survey Maps
Hydrographic survey information for district navigation projects. Maps are viewable in PDF format using the free Adobe Reader. MicroStation design files (.dgn format) are also available for downloading and are viewable using Bentley View a FREE CAD file application that can open, view, and print DGN, DWG and DXF file formats. These pages are updated periodically with the latest hydrographic survey data for each project. Dates for each survey are noted on the drawings.
NOTE: The condition surveys depicted on these drawings are not intended to replace nautical charts published by National Ocean Service, U.S. Coast Guard aids to navigation, or U.S. Coast Guard Notices to Mariners. The soundings on these drawings only indicate the general condition of the channel on the date of the survey, and are not intended to be used for navigational purposes.
- Entrance Channel
- Lower Reaches
- Upper Reaches
- Shipyard River
- Shem Creek
- Entrance Channel / Lower Winyah Bay
- Sampit River / Upper Winyah Bay
- Port Royal Disposal Area
- Entrance Channel
- Bay Point Reach
- Fort Fremont Reach
- Chowan Reach
- Cat Island Reach
- Port Royal Reach
Atlantic Intracoastal Waterway
- Entrance Channel
- Inner Channel B (Main Creek)
- Naval Weapons Station Channel
- MSDTC Dock