53 U.S. Army Corps of Engineers, New Orleans District gauges in south Louisiana · stage on each gauge's own datum
Nearest the next flood stage first. Gauges that haven't reported recently are left out.
The Corps reads stage where USGS and NOAA don't: on the lower Mississippi, in the Atchafalaya basin, at locks, and on both sides of floodgates. Each gauge reads on its own datum (NAVD88, the older NGVD29, or a local zero), so readings can't be compared from one gauge to the next. Corps gauges within 1 km of a USGS gauge already on this site are left out. How this site works
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Sources. Gage height from the U.S. Geological Survey ; tide gauge water levels from NOAA Tides & Currents; stage at locks, floodgates and the lower Mississippi from the U.S. Army Corps of Engineers; in the Houston area, stage readings from the Harris County Flood Warning System ; flood stages, crests, watches, advisories and warnings from the National Weather Service. This site is not affiliated with any of them.
No guidance, no forecast. This site reports measurements and official alert text only. It does not predict water levels, assess whether any road, property or route is passable, or advise any action. For decisions about safety, use official sources and local emergency management.
Accuracy. Gauges can fail, report late, or report in error, and recent USGS readings are provisional. HCFCD makes no representations, guarantees or warranties as to the availability, accuracy, completeness, currency or suitability of Flood Warning System data, and disclaims liability for actions taken or not taken based on it. Nothing here is verified independently.
Page generated Oct 27, 2026 at 2:35 PM CDT.
