Charles River at Waltham, MA
Is Charles River at Waltham, MA flooding right now?
Charles River at Waltham, MA measured 0.75 ft on 2026-09-11 01:30:00 UTC. That observation was 4.3 ft below its 5 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
0.75 ft
Streamflow
26 cfs
Minor flooding here begins at 5 ft, with major flooding at 9 ft. The highest crest on record was 7.56 ft on Tue, Mar 16, 2010.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 4 ft | 3.3 ft below |
| Minor flood | 5 ft | 4.3 ft below |
| Moderate flood | 7 ft | 6.3 ft below |
| Major flood | 9 ft | 8.3 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 7.56 ft | 2010-03-16 |
| 6.54 ft | 1976-02-03 |
| 6.48 ft | 1979-01-25 |
| 6.46 ft | 2010-03-31 |
| 6.05 ft | 1996-10-21 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Beaver Brook, Linden Street, at Waltham, MA | 0.7 mi | Middlesex County |
| Stony Brook, Unnamed Tributary 1, near Waltham, MA | 1.9 mi | Middlesex County |
| Stony Brook at Rt 20 at Waltham, MA | 1.9 mi | Middlesex County |
| Stony Brook Reservoir at Dam near Waltham, MA | 2.0 mi | Middlesex County |
| Stony Brook Unnamed Tributary 2 near Weston Station | 2.1 mi | Middlesex County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.