Dam Report

Pine Hollow Detention dam

Pennsylvania, USA Tr Ohio River Hazard Significant
Today high
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Tonight low
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Dam height
22ft
Hazard rating
Significant
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Pine Hollow Detention -- None dam
Pine Hollow Detention None · Tr Ohio River
About this dam

Pine Hollow Detention

Located in Kennedy Township, Pennsylvania, Pine Hollow Detention is a crucial structure dedicated to flood risk reduction along the TR Ohio River. Built in 1999, this earth-type dam stands at a height of 22 feet with a length of 75 feet, providing a storage capacity of 3 acre-feet. Managed by the Pennsylvania Department of Environmental Protection, the dam is subject to state regulations and inspections to ensure its structural integrity and operational effectiveness.

With a significant hazard potential, Pine Hollow Detention is equipped with satisfactory condition assessments and a regular inspection frequency to mitigate any potential risks. The dam's purpose remains focused on flood risk reduction, serving as a vital resource for the Allegheny County community. In 2005, hydraulic modifications were made to enhance its efficiency, highlighting the ongoing commitment to maintaining and improving the infrastructure for water resource and climate resilience in the region.

As a key component in the flood control system, Pine Hollow Detention plays a crucial role in safeguarding the surrounding areas from potential inundation. With its strategic location and design, this dam stands as a testament to effective water management practices and a testament to the collaborative efforts between local governments and state agencies in ensuring the safety and security of communities along the Ohio River.

StateNone
River / streamTr Ohio River
NID IDPA01677
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1999
Dam height22 ft
Dam length75 ft
Max storage3 AF
Drainage area0.3 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionThu, 29 Nov 2018 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 Pine Hollow Detention -- inflows here typically show up in storage 24-72 hours later.

Track Pine Hollow Detention 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 Pine Hollow Detention

Where does the data for Pine Hollow Detention 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.

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