Stony Brook Reservoir At Dam Near Waltham, Ma Realtime Data
STONY BROOK RESERVOIR AT DAM NEAR WALTHAM, MA
Realtime Data • Report • Conditions
0
Discharge (cfs)
0.7
Gauge Height (ft)
USGS 01104480
Streamflow discharge was last observed at 0 cfs, and a gauge height of 0.65 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 0 .
Weather today, Tomorrow,
The reservoir receives water from the Stony Brook and several other tributaries. The flow into the reservoir is regulated by the Massachusetts Water Resources Authority. Seasonal trends show that the flow is highest in the springtime due to snowmelt and precipitation. The dam was constructed in 1899 and is listed on the National Register of Historic Places. The reservoir is also a popular place for outdoor activities such as hiking and fishing. However, swimming and boating are not allowed due to water quality concerns.
July 19, 2026
| Elevation | 62.0 ft |
| Last Updated | |
| Gage height, ft | 0.65 ft |
| Elevation of reservoir water surface above datum, ft | 78.4 ft |
| Streamflow, ft³/s | 0.01 ft3/s |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C | 865.0 uS/cm @25C |
| Dissolved oxygen, water, unfiltered, mg/L | 6.4 mg/l |
| Reservior storage, Mgal | 357.5 Mgal |
| Temperature, air, °C | 21.7 deg C |
| Temperature, water, degC | 2.2 deg C |
| Precipitation, total, in | 0.0 in |
| Percent of Normal | 5% |
| Year Over Year Average | 0 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 366 cfs |
| Geolocation | 42.36, -71.27 |
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