Cross Creek (Pa-661) Reservoir Report
Nearby: Cross Creek (Pa-662) Cherry Valley
Last Updated: January 11, 2026
Cross Creek (Pa-661) is a key water resource infrastructure in Washington, Pennsylvania, designed by the USDA NRCS and regulated by the Pennsylvania Department of Environmental Protection.
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Summary
Completed in 1979, this earthen dam stands at a height of 82 feet and serves primarily for flood risk reduction, with additional purposes including recreation and water supply. With a storage capacity of 11,200 acre-feet and a surface area of 260 acres, the dam plays a crucial role in managing the water resources of the Cross Creek watershed.
Located in Cross Creek Township, this dam is under the jurisdiction of the Huntingdon District of the US Army Corps of Engineers. The last inspection in November 2020 deemed its condition satisfactory, although its hazard potential is considered high. With a history of modifications, including a hydraulic upgrade in 2015, the dam continues to be a vital structure for mitigating flood risks in the region. Water resource and climate enthusiasts will appreciate the complex management and regulatory framework surrounding Cross Creek (Pa-661), highlighting the importance of effective dam infrastructure in safeguarding communities and ecosystems from water-related hazards.
Years Modified |
2015 - Hydraulic |
Year Completed |
1979 |
Dam Length |
855 |
Dam Height |
82 |
River Or Stream |
CROSS CREEK |
Primary Dam Type |
Earth |
Surface Area |
260 |
Drainage Area |
11 |
Nid Storage |
11200 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
82 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Kings Creek At Weirton
|
44cfs |
Short Creek Near Dillonvale Oh
|
78cfs |
Wheeling Creek At Elm Grove
|
183cfs |
Chartiers Creek At Carnegie
|
176cfs |
Ohio River At Sewickley
|
45000cfs |
Wheeling Creek Below Blaine Oh
|
58cfs |
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.
Cross Creek (Pa-661)