Dam Report

Forest Lake Dam dam

Massachusetts, USA Hazard Low
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Dam height
7ft
Hazard rating
Low
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Forest Lake Dam -- None dam
Forest Lake Dam None
About this dam

Forest Lake Dam

Forest Lake Dam in Methuen, Massachusetts, is a gravity dam primarily used for recreational purposes. Managed by the local government, the dam stands at a height of 6.5 feet with a hydraulic height of 4.5 feet. It has a normal storage capacity of 60 acre-feet and a maximum storage of 120 acre-feet, serving as a popular spot for outdoor activities in the Essex County area.

The dam, constructed with earth and gravity materials, is regulated by the Department of Conservation and Recreation in Massachusetts. With a low hazard potential and fair condition assessment, the dam poses a moderate risk level. Although last inspected in October 2015, the dam has state permitting, inspection, and enforcement measures in place to ensure its safety and functionality for the surrounding community. Climate and water resource enthusiasts can appreciate the ecological significance and recreational value that Forest Lake Dam provides in the region.

Located in the New England District, Forest Lake Dam offers a tranquil retreat for visitors seeking to enjoy its 40-acre surface area and surrounding natural beauty. With its uncontrolled spillway type and a drainage area of 0.36 square miles, the dam contributes to the local ecosystem and serves as a vital water source for the area. As water resource and climate enthusiasts explore the importance of dams in environmental conservation, Forest Lake Dam stands out as a key landmark in Methuen, Massachusetts, blending recreation with ecological stewardship.

StateNone
NID IDMA03000
Owner typeLocal Government
Primary purposeRecreation
Dam typeGravity
Dam height7 ft
Dam length100 ft
Max storage120 AF
Normal storage60 AF
Surface area40.0 ac
Drainage area0.4 sq mi
Hazard potentialLow
ConditionFair
Last inspectionMon, 19 Oct 2015 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 Forest Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Forest Lake 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 Forest Lake Dam

Where does the data for Forest Lake 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 Low 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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