Dam Report

Freeman Bog Dam Dam

Massachusetts, USA Mattapoisett River Hazard Low
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Dam height
12ft
Hazard rating
Low
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Freeman Bog Dam -- Massachusetts dam
Freeman Bog Dam Massachusetts · Mattapoisett River
About this dam

Freeman Bog Dam

Freeman Bog Dam, located in Rochester, Massachusetts, is a state-regulated structure managed by the Department of Conservation and Recreation. Built in 1900, this gravity dam serves as a Fish and Wildlife Pond, providing essential habitat for local wildlife and offering recreational opportunities for visitors. With a height of 12 feet and a length of 760 feet, the dam has a storage capacity of 64 acre-feet and covers a surface area of 7 acres.

Despite its low hazard potential, Freeman Bog Dam is currently in poor condition, as assessed in April 2017. The dam poses a moderate risk level, with a risk assessment rating of 3. Regular inspections are conducted every 10 years to ensure the safety and integrity of the structure. Although the dam has an uncontrolled spillway type, measures for risk management and emergency preparedness are not specified in the available data.

Water resource and climate enthusiasts interested in Freeman Bog Dam can explore its significance in supporting local ecosystems and providing recreational opportunities. With its historical construction and current condition assessment, the dam serves as a valuable example of the intersection between water management, environmental conservation, and public safety in Massachusetts.

StateMassachusetts
River / streamMattapoisett River
NID IDMA00385
Owner typeState
Primary purposeFish And Wildlife Pond
Dam typeGravity
Year built1900
Dam height12 ft
Dam length760 ft
Max storage64 AF
Normal storage21 AF
Surface area7.0 ac
Drainage area7.6 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionWed, 05 Apr 2017 00:00:00 GMT
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 Freeman Bog Dam -- inflows here typically show up in storage 24-72 hours later.

Around the water

Make a day of it

Boat launches, lakeside camping, fishing access, and other reservoirs near Freeman Bog Dam.

FAQ

About Freeman Bog Dam

Where does the data for Freeman Bog 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 below 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.

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.