Allegheny River Lock And Dam 2 dam
Allegheny River Lock And Dam 2
Allegheny River Lock and Dam 2, also known as Allegheny River Pool 02, is a federal-owned structure located in Sharpsburg, Allegheny County, Pennsylvania. Built in 1934 by the US Army Corps of Engineers, this gravity-type dam serves the primary purpose of navigation on the Allegheny River. The dam, with a hydraulic height of 58 feet and a structural height of 58 feet, spans a length of 1473 feet and has a storage capacity of 14,500 acre-feet.
The dam features a multi-arch core type and is founded on rock. It includes a single lock, measuring 360 feet in length and 56 feet in width, for managing water levels and facilitating boat traffic. With a spillway width of 1393 feet and a maximum discharge capacity of 200,000 cubic feet per second, the dam plays a crucial role in flood risk management along the river. Despite its significant hazard potential, the US Army Corps of Engineers implements various risk management measures, including regular inspections, maintenance, and emergency action planning, to ensure the dam's safety and structural integrity.
Overall, Allegheny River Lock and Dam 2 serves as a vital infrastructure for navigation and flood control on the Allegheny River. With ongoing monitoring and risk management efforts by the US Army Corps of Engineers, the dam continues to play a crucial role in water resource management and climate resilience in the region.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Allegheny River Lock And Dam 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Pine Creek Near Etna | 3 cfs | → |
| Chartiers Creek At Carnegie | 147 cfs | → |
| Allegheny River At Natrona | 16,400 cfs | → |
| Monongahela River At Elizabeth | 21,100 cfs | → |
| Ohio River At Sewickley | 23,400 cfs | → |
| Youghiogheny River At Sutersville | 1,950 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Allegheny River Lock And Dam 2.
Boat launches
- Sharpsburg Island Marina
- Blawnox Launch Site
- Lawrenceville/40th Street Bridge
- Verona
- Oakmont Public Access
- Southside Riverfront Park 2
Campgrounds
- Montour Trail - Boggs Trailhead Campsite
- Cedar Creek Trekker Campground
- Bush
- Crooked Creek Recreation Area
- Harts Content Campground
- Raccoon Creek State Park
Paddle runs
Track Allegheny River Lock And Dam 2 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.
About Allegheny River Lock And Dam 2
Where does the data for Allegheny River Lock And Dam 2 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Allegheny River Lock And Dam 2.