Cahaba River near Cahaba Heights AL Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 02423425 sits on the Cahaba River and reads everything draining 201 square miles of the Cahaba basin. Its datum sits 405 feet above sea level NAVD88. Daily flow has been on record here since 1975, 38 years of it.

Where this gauge sits in the drainage

Four gauged sites sit upstream of here. The closest is Cahaba River near Mountain Brook AL, reading 140 square miles. This gauge adds the 61 square miles that drain in between. Downstream the next reading comes from Cahaba River near Hoover, AL at 226 square miles, so what passes this gauge is about 89% of the water measured there. Water passing here goes on to Cahaba River near Acton AL and Cahaba River near Helena AL.

Normal flows here

The Cahaba River runs a median of 55 cfs at this gauge across 38 years of record. March is the fullest month at a median 390 cfs, and October the leanest at 9.9 cfs. The highest daily mean on record is 19,300 cfs in 1979, and the lowest is 0.1 cfs in 1979.

Medians from the USGS daily-statistics record, 1975 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Cahaba River reaches flood stage at this gauge at 14 feet. The highest crest on record is 28.9 feet, in April 1979.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge CHGA1. Stages are gage height, not depth. Not for navigation.

Dams near this gauge

The Army Corps' Logan Martin Dam is 22 miles from this gauge. The Corps publishes no release schedule for this project; its last observed release and elevations load below.

• Logan Martin Dam 22 miles