Dam Report

East Mt. Reservoir Dam dam

Massachusetts, USA Unnamed Brook Hazard Significant
Today high
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Tonight low
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Dam height
20ft
Hazard rating
Significant
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East Mt. Reservoir Dam -- None dam
East Mt. Reservoir Dam None · Unnamed Brook
About this dam

East Mt. Reservoir Dam

Located in Great Barrington, Massachusetts, the East Mt. Reservoir Dam is a crucial structure for water supply purposes in the area. This earth dam with a height of 20 feet and a hydraulic height of 18 feet serves to store and regulate water flow from the unnamed brook. With a normal storage capacity of 15 acre-feet and a maximum storage of 27 acre-feet, this dam plays a significant role in managing water resources for the community.

Managed by the Department of Conservation and Recreation, the East Mt. Reservoir Dam is state-regulated, inspected, and enforced to ensure its structural integrity and safety. The dam's hazard potential is considered significant, but its condition assessment as of October 2016 was satisfactory. With a moderate risk rating of 3, the dam is monitored regularly and meets guidelines for emergency action preparedness.

Water resource and climate enthusiasts will appreciate the vital role that the East Mt. Reservoir Dam plays in the conservation and management of water in Berkshire, Massachusetts. As a key infrastructure for water supply, this dam not only provides a reliable source of water but also contributes to the overall resilience and sustainability of the region's water resources amidst changing climate conditions.

StateNone
River / streamUnnamed Brook
NID IDMA02611
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Dam height20 ft
Dam length200 ft
Max storage27 AF
Normal storage15 AF
Surface area2.4 ac
Drainage area0.4 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionTue, 25 Oct 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 East Mt. Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.

Track East Mt. Reservoir 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 East Mt. Reservoir Dam

Where does the data for East Mt. Reservoir 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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