Dam Report

Knight Meadow Pond Dam dam

New Hampshire, USA Knight Meadow Brook Hazard Low
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Tonight low
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Dam height
9ft
Hazard rating
Low
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Knight Meadow Pond Dam -- None dam
Knight Meadow Pond Dam None · Knight Meadow Brook
About this dam

Knight Meadow Pond Dam

Knight Meadow Pond Dam in Webster, New Hampshire, is a state-regulated structure with a primary purpose of recreation. Built in 1966, this earth dam stands at a height of 9 feet and has a length of 90 feet, creating a reservoir with a storage capacity of 483 acre-feet. The dam is situated on Knight Meadow Brook, within the Merrimack County of New Hampshire, and is owned by the state.

Despite being classified as having a low hazard potential, the dam's condition is assessed as fair, with the last inspection in June 2017. The structure boasts a moderate risk assessment rating, indicating the need for careful monitoring and risk management measures. With a drainage area of 3.7 square miles and a maximum discharge rate of 748 cubic feet per second, Knight Meadow Pond Dam plays a crucial role in water resource management and flood control in the region.

Enthusiasts of water resources and climate will find Knight Meadow Pond Dam an intriguing example of a recreational dam with both recreational and practical functions. Its design and construction reflect the engineering efforts to balance water storage needs with environmental considerations, making it a vital component of the local landscape and ecosystem. As climate change continues to impact water resources, structures like Knight Meadow Pond Dam will play a crucial role in adapting to and mitigating the effects of changing weather patterns on the region's water supply and flood control efforts.

StateNone
River / streamKnight Meadow Brook
NID IDNH00560
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1966
Dam height9 ft
Dam length90 ft
Max storage483 AF
Normal storage83 AF
Surface area50.0 ac
Drainage area3.7 sq mi
Hazard potentialLow
ConditionFair
Last inspectionWed, 21 Jun 2017 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 Knight Meadow Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Knight Meadow 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 Knight Meadow Pond Dam

Where does the data for Knight Meadow 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 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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