Penn Run at Mt Washington Rd near Louisville, KY 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 03298300 sits on Penn Run and reads everything draining 6.4 square miles of the Salt basin. Its datum sits 523 feet above sea level NAVD88. Daily flow has been on record here since 1999, 28 years of it.

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 Floyds Fork near Shepherdsville, KY at 283 square miles, so what passes this gauge is about 2% of the water measured there. Water passing here goes on to Salt River at Shepherdsville, KY and Salt River at Main Range Rd near West Point, KY.

Normal flows here

Penn Run runs a median of 3.2 cfs at this gauge across 28 years of record. February is the fullest month at a median 7.7 cfs, and September the leanest at 0.8 cfs. The highest daily mean on record is 1,250 cfs in 2015, and the lowest is 0.0 cfs in 2021.

Medians from the USGS daily-statistics record, 1999 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The highest crest on record is 10.9 feet, in April 2015.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge ZTNK2. Stages are gage height, not depth. Not for navigation.