Dam Report

Jennings Pond dam

Pennsylvania, USA Little Mehoopany Creek Hazard High
Today high
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Tonight low
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Dam height
11ft
Hazard rating
High
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Jennings Pond -- None dam
Jennings Pond None · Little Mehoopany Creek
About this dam

Jennings Pond

Jennings Pond, located in Windham Township, Pennsylvania, is a privately owned reservoir with a primary purpose of recreation. This Earth dam, completed in 1900, stands at a height of 11 feet and stretches 169 feet in length, providing a surface area of 37 acres for water enthusiasts to enjoy. With a normal storage capacity of 147 acre-feet, the reservoir is fed by the Little Mehoopany Creek and is under the regulatory jurisdiction of the Pennsylvania Department of Environmental Protection.

Despite its picturesque setting, Jennings Pond poses a high hazard potential and has been assessed to be in poor condition. The last inspection in October 2020 revealed the need for improvements to ensure the safety and integrity of the dam. With an inspection frequency of once a year, the reservoir's emergency action plan and risk management measures are currently undetermined. Climate and water resource enthusiasts may take interest in the challenges faced by Jennings Pond and the potential opportunities for enhancing its resilience in the face of changing environmental conditions.

StateNone
River / streamLittle Mehoopany Creek
NID IDPA00891
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1900
Dam height11 ft
Dam length169 ft
Max storage247 AF
Normal storage147 AF
Surface area37.0 ac
Drainage area7.9 sq mi
Hazard potentialHigh
ConditionPoor
Last inspectionFri, 23 Oct 2020 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 Jennings Pond -- inflows here typically show up in storage 24-72 hours later.

Track Jennings Pond 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 Jennings Pond

Where does the data for Jennings Pond 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 High 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.