Dam Report

Reservoir No 7 dam

Pennsylvania, USA Racket Brook Hazard Significant
Today high
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Tonight low
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Dam height
13ft
Hazard rating
Significant
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Reservoir No 7 -- None dam
Reservoir No 7 None · Racket Brook
About this dam

Reservoir No 7

Reservoir No 7, located in Canaan Township, Wayne County, Pennsylvania, was completed in 1852 and serves as a critical water supply source for the region. The dam is classified as an earth-type structure with a height of 12.9 feet and a length of 300 feet. With a storage capacity of 88 acre-feet, the reservoir covers 17 acres and has a drainage area of 0.28 square miles, providing water for various purposes including agricultural, industrial, and domestic use.

Managed by a private entity, the dam is regulated by the Pennsylvania Department of Environmental Protection, ensuring compliance with state inspection, permitting, and enforcement requirements. Despite its age, the dam is assessed to be in fair condition with a significant hazard potential, prompting a biennial inspection frequency to monitor its structural integrity. Although no emergency action plan has been reported, the reservoir plays a crucial role in water resource management for the surrounding communities, highlighting the importance of proper maintenance and risk management measures to safeguard its continued operation.

Reservoir No 7's association with the Racket Brook and its location within the Baltimore District underscores its significance as a key infrastructure supporting water supply needs in the region. As climate change continues to impact water resources, the proper management and maintenance of dams like Reservoir No 7 are essential to ensure reliable access to water for both current and future generations. As enthusiasts in water resource and climate issues, understanding and advocating for the sustainable management of reservoirs like No 7 is essential in securing a resilient water supply for communities in the face of changing environmental conditions.

StateNone
River / streamRacket Brook
NID IDPA00090
Owner typePrivate
Primary purposeWater Supply
Dam typeEarth
Year built1852
Dam height13 ft
Dam length300 ft
Max storage88 AF
Normal storage35 AF
Surface area17.0 ac
Drainage area0.3 sq mi
Hazard potentialSignificant
ConditionFair
Last inspectionWed, 16 Sep 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 Reservoir No 7 -- inflows here typically show up in storage 24-72 hours later.

Track Reservoir No 7 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 Reservoir No 7

Where does the data for Reservoir No 7 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.