Dam Report

Coes Lower Pond Dam dam

Massachusetts, USA Tatnuck Brook Hazard Significant
Today high
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Tonight low
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Dam height
15ft
Hazard rating
Significant
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Coes Lower Pond Dam -- None dam
Coes Lower Pond Dam None · Tatnuck Brook
About this dam

Coes Lower Pond Dam

Coes Lower Pond Dam, located in Worcester, Massachusetts, was completed in 1865 and serves as a key recreational resource along Tatnuck Brook. The dam, primarily owned and regulated by the Department of Conservation and Recreation, stands at a height of 15 feet and has a storage capacity of 58 acre-feet. Its primary purpose is for recreation, offering a surface area of 4.2 acres for outdoor activities in the surrounding area.

Despite being classified as having a significant hazard potential, the dam is assessed to be in fair condition as of the last inspection in June 2016. The inspection frequency is set at every 5 years, ensuring its ongoing safety and functionality. While the risk assessment deems the dam to have a moderate risk level, the lack of specific risk management measures or inundation maps prepared suggests room for improvement in emergency preparedness.

For water resource and climate enthusiasts, Coes Lower Pond Dam presents an intriguing case study in balancing the need for recreational amenities with the potential risks associated with dam infrastructure. As efforts continue to ensure its safety and resilience, the dam serves as a reminder of the importance of proactive maintenance and risk management in safeguarding our water resources and communities against potential hazards.

StateNone
River / streamTatnuck Brook
NID IDMA01660
Owner typeLocal Government
Primary purposeRecreation
Dam typeEarth
Year built1865
Dam height15 ft
Dam length170 ft
Max storage58 AF
Normal storage21 AF
Surface area4.2 ac
Drainage area4.0 sq mi
Hazard potentialSignificant
ConditionFair
Last inspectionMon, 06 Jun 2016 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Coes Lower Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Coes Lower 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.

FAQ

About Coes Lower Pond Dam

Where does the data for Coes Lower 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.

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