Can you swim here today?
Chestnut Hill Branch
Maryland · River
Live flow only — judge the water in person
Use cautionAs of August 22, 2026, USGS gauge 01642190, 5.6 miles away, reports a streamflow of 222 ft³/s near Chestnut Hill Branch but no water-temperature reading.
Live flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby. — USGS gauge 01642190, as of Aug 22, 7:45 AM gauge-local time
- Flow is within the normal range (25th–75th percentile) for Aug 22 (median 149 ft³/s over 22 years). — USGS daily streamflow statistics, as of Aug 22, 7:45 AM gauge-local time
Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 22 (median 149 ft³/s over 22 years).
No official beach-advisory feed for Maryland yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge MONOCACY RIVER AT MONOCACY BLVD AT FREDERICK, MD (5.6 mi away), as of Aug 22, 7:45 AM gauge-local time.
Before you get in
- Never swim alone — and keep weaker swimmers within arm's reach.
- Scout depth and entry/exit points before you get in.
- Read the current: avoid fast, rising, or murky water.
- Check the forecast — get out well before storms or lightning.
- Obey posted signs, flags, and lifeguard guidance.
Read next
Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.