Dam Report

Deer Lake dam

Pennsylvania, USA Meadow Run Hazard High
Today high
--
Tonight low
--
Dam height
15ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Deer Lake -- None dam
Deer Lake None · Meadow Run
About this dam

Deer Lake

Deer Lake, located in Wharton Township, Fayette County, Pennsylvania, is a privately owned water resource with a primary purpose of recreation. This earth dam, completed in 1906, stands at a height of 15 feet and spans a length of 547 feet, creating a surface area of 60 acres. With a normal storage capacity of 359 acre-feet and a maximum storage of 543 acre-feet, Deer Lake offers a serene retreat for outdoor enthusiasts and nature lovers.

Managed by the Pennsylvania Department of Environmental Protection, Deer Lake is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with environmental standards. Despite having a high hazard potential, the dam is currently assessed to be in fair condition, with the last inspection conducted in October 2020. The surrounding area, including the Meadow Run stream, adds to the picturesque beauty of Deer Lake and provides a habitat for diverse wildlife, making it a valuable asset for water resource and climate enthusiasts to explore and appreciate.

As a recreational haven in the heart of Pennsylvania, Deer Lake offers opportunities for boating, fishing, and wildlife observation against the backdrop of a historic earth dam. With its rich history dating back over a century, Deer Lake continues to be a popular destination for outdoor recreation, drawing visitors who seek to enjoy the beauty of nature and partake in water-based activities. The dedication to maintaining the dam's safety and compliance with regulations ensures that this idyllic spot remains a cherished retreat for both locals and tourists alike, making it a must-visit for those passionate about water resources and climate conservation.

StateNone
River / streamMeadow Run
NID IDPA01139
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1906
Dam height15 ft
Dam length547 ft
Max storage543 AF
Normal storage359 AF
Surface area60.0 ac
Drainage area4.9 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionTue, 27 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.

Loading hourly forecast…
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
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Deer Lake -- inflows here typically show up in storage 24-72 hours later.

Track Deer Lake 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 Deer Lake

Where does the data for Deer Lake 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.