Taxiway "E" Detention Basin Reservoir Report
Last Updated: December 6, 2025
Located in Moon Township, Allegheny, Pennsylvania, the Taxiway "E" Detention Basin serves as a crucial flood risk reduction structure along McClarens Run.
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Summary
Completed in 1996, this earth dam stands at a height of 84 feet and stretches for 1000 feet, providing a storage capacity of 1300 acre-feet. Managed by the Pennsylvania Department of Environmental Protection, the basin is subject to state regulation, permitting, inspection, and enforcement to ensure its effectiveness in mitigating flood hazards in the region.
With a hazard potential categorized as significant, the Taxiway "E" Detention Basin has been assessed as being in satisfactory condition, as of the last inspection in July 2017. The basin operates under a comprehensive emergency action plan, though details on its preparedness, revision dates, and adherence to guidelines are yet to be disclosed. While the structure has not been modified in recent years, its critical role in managing stormwater and protecting the surrounding area underscores the importance of ongoing monitoring and maintenance to uphold its functionality in safeguarding the community from flood events.
As a vital component of the flood risk reduction strategy in the region, the Taxiway "E" Detention Basin plays a key role in preserving public safety and infrastructure integrity. Its association with McClarens Run highlights its significance in managing drainage from a 1.6 square mile area. With its strategic location and substantial storage capacity, this detention basin stands as a testament to effective water resource management and climate resilience efforts in Allegheny, Pennsylvania.
Year Completed |
1996 |
Dam Length |
1000 |
Dam Height |
84 |
River Or Stream |
MCCLARENS RUN |
Primary Dam Type |
Earth |
Drainage Area |
1.6 |
Nid Storage |
1300 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
84 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ohio River At Sewickley
|
17300cfs |
Chartiers Creek At Carnegie
|
94cfs |
Raccoon Creek At Moffatts Mill
|
29cfs |
Little Pine Creek Near Etna
|
1cfs |
Beaver River At Beaver Falls
|
1500cfs |
Kings Creek At Weirton
|
10cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Taxiway "E" Detention Basin
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