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Sallie Harris Creek near Carmichael, MD Water Level Today

Maryland · USGS gauge 01492500 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01492500 sits on Sallie Harris Creek and reads everything draining 8.1 square miles of the Chester-Sassafras basin. Its datum sits 5 feet above sea level NAVD88. Daily flow has been on record here since 1951, 31 years of it.

Normal flows here

Sallie Harris Creek runs a median of 5.4 cfs at this gauge across 31 years of record. March is the fullest month at a median 8.6 cfs, and September the leanest at 3.0 cfs. The highest daily mean on record is 703 cfs in 2011, and the lowest is 1.2 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan6.9 cfs128%
Feb7.6 cfs141%
Mar8.6 cfs159%
Apr7.8 cfs145%
May5.6 cfs104%
Jun4.0 cfs75%
Jul3.7 cfs69%
Aug3.4 cfs63%
Sep3.0 cfs56%
Oct3.5 cfs65%
Nov5.0 cfs94%
Dec6.1 cfs113%

Medians from the USGS daily-statistics record, 1951 to 2026. A month at 100% is running at its own long-term median.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01492500. Percentile context computed against the gauge's period of record. Not for navigation.

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