Old Mill Pond Dam dam
Old Mill Pond Dam
Old Mill Pond Dam, located in Shrewsbury, Massachusetts, is a significant earth dam with a hydraulic height of 14 feet and a dam height of 15.1 feet. Completed in 1968, the dam serves a primary purpose that is classified as "Other" with a normal storage capacity of 84 acre-feet. The dam is state-regulated by the Department of Conservation and Recreation and is subject to state permitting, inspection, and enforcement.
With a hazard potential rated as "Significant" and a condition assessment of "Satisfactory," Old Mill Pond Dam poses moderate risk according to the data. The last inspection date was in December 2016, with an inspection frequency of 5 years. The dam has not had any emergency action plan (EAP) prepared, and there are no inundation maps or risk management measures in place. Despite these factors, the dam's risk assessment remains at a moderate level, indicating the need for continued monitoring and potential enhancement of safety measures for this important water resource structure.
For water resource and climate enthusiasts, Old Mill Pond Dam presents a valuable case study in dam management and safety. The dam's location on West Brook in Worcester County, Massachusetts, highlights the intersection of environmental protection, water resource management, and infrastructure maintenance. As climate change impacts water resources globally, understanding and addressing the risks associated with dams like Old Mill Pond Dam are essential for ensuring the resilience and sustainability of our water systems in the face of evolving climate challenges.
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 Old Mill Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Quinsigamond River At North Grafton | 15 cfs | → |
| Blackstone River | 136 cfs | → |
| Quinapoxet River At Canada Mills Near Holden | 27 cfs | → |
| Stillwater River Near Sterling | 22 cfs | → |
| Blackstone River At Northbridge | 1,000 cfs | → |
| French River Below Dam | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Old Mill Pond Dam.
Boat launches
- Tamarack Lane 37, Shrewsbury
- Sewell Drive Shrewsbury
- Oak Island Boat Ramp
- Brigham Hill Road Grafton
- Chauncy Street 19, Westborough
- Emerald Bracelet, Northborough
Campgrounds
- "The Sandpits" Private Hiking And Winter Sports Area
- Minha Casa
- Narragansett Council, Boy Scouts Of America, Cub World
- Grotonwood
- George Washington State Campground
- Pearl Hill Campground
Paddle runs
Track Old Mill Pond Dam 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 Old Mill Pond Dam
Where does the data for Old Mill Pond Dam 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 Old Mill Pond Dam.