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Rolling Fork near Boston, KY Water Level Today

Kentucky · USGS gauge 03301500 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 03301500 sits on the Rolling Fork and reads everything draining 1,299 square miles of the Rolling Fork basin. Its datum sits 400 feet above sea level NAVD88. Daily flow has been on record here since 1939, 87 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 Rolling Fork near Lebanon Junction, KY at 1,375 square miles, so what passes this gauge is about 94% of the water measured there. Water passing here goes on to Salt River at Main Range Rd near West Point, KY.

Normal flows here

The Rolling Fork runs a median of 522 cfs at this gauge across 87 years of record. March is the fullest month at a median 1,920 cfs, and September the leanest at 58 cfs. The highest daily mean on record is 68,400 cfs in 1997, and the lowest is 0.4 cfs in 1953.

Median flow by month
MonthMedian flowShare of annual median
Jan1,340 cfs257%
Feb1,770 cfs339%
Mar1,920 cfs368%
Apr1,380 cfs264%
May676 cfs130%
Jun345 cfs66%
Jul208 cfs40%
Aug130 cfs25%
Sep58 cfs11%
Oct58 cfs11%
Nov212 cfs41%
Dec848 cfs162%

Medians from the USGS daily-statistics record, 1939 to 2025. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Rolling Fork reaches flood stage at this gauge at 35 feet. NWS starts watching it at 33 feet. The highest crest on record is 55.2 feet, in January 1937.

NWS flood categories
CategoryGage height
Action33 ft
Minor flooding35 ft
Moderate flooding42 ft
Major flooding45 ft
Highest crests on record
WhenCrest
January 193755.2 ft
March 199753.2 ft
February 198952.6 ft
April 202552.6 ft
December 197851.7 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge BSNK2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 03301500. Percentile context computed against the gauge's period of record. Not for navigation.

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