TidalMap
Explore this water on the live chart →

Four Hole Swamp near Dorchester, SC Water Level Today

South Carolina · USGS gauge 02174480 · live data · Updated Oct 28, 2026

Loading…

About this gauge

USGS gauge 02174480 sits on Four Hole Swamp and reads everything draining 560 square miles of the Four Hole Swamp basin.

Where this gauge sits in the drainage

No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Edisto River near Givhans, SC at 2,730 square miles, so what passes this gauge is about 21% of the water measured there. Water passing here goes on to Edisto River below Jacksonboro, SC.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02174480. Percentile context computed against the gauge's period of record. Not for navigation.

Open Four Hole Swamp near Dorchester, SC on the live chart →

River pins, dam-release overlays and wadability lines live in the app, start a free TidalMap trial.