This is an independent site, not operated by or affiliated with the U.S. Army Corps of Engineers. Water level data comes from the USACE CWMS Data API; ramp status comes from the USACE Savannah District's public ramp status page, checked on a schedule and time-stamped by us. Boat ramp threshold elevations come from a USACE document last revised March 13, 2013, and are approximate — see each ramp's page for details.
Always inspect a ramp yourself before launching. Conditions change faster than any website.