Glen Rock Reservoir dam
Glen Rock Reservoir
Glen Rock Reservoir, also known as Usquepaug, is a private-owned water resource located in South Kingstown, Rhode Island. The reservoir, completed in 1860, serves multiple purposes including recreation and other activities. With a dam height of 7 feet and a storage capacity of 125 acre-feet, Glen Rock Reservoir covers a surface area of 15 acres and has a drainage area of 33 square miles.
Situated along the Usquepaug River, the reservoir has a significant hazard potential and is subject to regular inspections with an inspection frequency of 5 years. With a spillway width of 106 feet and a maximum discharge capacity of 371 cubic feet per second, Glen Rock Reservoir plays a crucial role in managing water flow and ensuring safety in the surrounding area. The reservoir offers a serene setting for water resource and climate enthusiasts to appreciate the beauty of nature while also understanding the importance of maintaining and managing water resources effectively.
Despite not being state-regulated, Glen Rock Reservoir remains a vital water resource within the region, providing opportunities for recreational activities and serving as a source of water storage. With its historical significance dating back to the 19th century, the reservoir continues to be a key component in the local ecosystem, offering a glimpse into the intersection of human activity and natural landscapes in the context of water resource management and climate resilience.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Glen Rock Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Beaver River Near Usquepaug | 12 cfs | → |
| Usquepaug River Near Usquepaug | 40 cfs | → |
| Queen R At Liberty Rd At Liberty Ri | 15 cfs | → |
| Chipuxet River At West Kingston | 8 cfs | → |
| Pawcatuck River | 105 cfs | → |
| Pawcatuck River At Wood River Junction | 118 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Glen Rock Reservoir.
Boat launches
- Barber Pond
- Worden Pond State Boat Launch
- Sandy Bottom Shores Drive Peacedale
- Tucker Pond
- Indian Lake State Boat Launch
- Watchaug Pond State Boat Launch
Campgrounds
- Camp Hoffman
- Camp Watchaug (Westerly Ymca)
- 315 - Burlingham
- Mystic Koa Holiday
- Dyer Woods Nudist Campgrounds
- Highland Campground
Fishing spots
Track Glen Rock Reservoir in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Glen Rock Reservoir
Where does the data for Glen Rock Reservoir come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Significant hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Glen Rock Reservoir.