Patterson Creek No. 1 Dam dam
Patterson Creek No. 1 Dam
Patterson Creek No. 1 Dam, located in Lahmansville, West Virginia, was completed in 1966 by the USDA NRCS and serves as a critical infrastructure for flood risk reduction along Patterson Creek. The dam stands at a height of 52 feet with a hydraulic height of 45 feet, holding a maximum storage capacity of 933 acre-feet and a normal storage capacity of 75 acre-feet. With a surface area of 14 acres, the dam plays a crucial role in protecting the surrounding area from potential flooding events.
Managed by the local government and regulated by the West Virginia Department of Environmental Protection, the Patterson Creek No. 1 Dam is classified as having a high hazard potential. Despite not being rated for its condition assessment, the dam undergoes inspections every two years to ensure its structural integrity. In case of emergencies, an emergency action plan was last revised in May 2014 to outline necessary protocols and contacts. The risk assessment for the dam is categorized as moderate, emphasizing the importance of ongoing risk management measures to safeguard the community and environment.
As a key component of the flood risk reduction system in Grant County, West Virginia, the Patterson Creek No. 1 Dam serves as a vital structure for water resource management and climate resilience in the region. With its earth dam type and stone core, the dam has been designed to withstand potential flood events and protect downstream areas from excessive water flow. It stands as a testament to the collaborative efforts between federal and local agencies in safeguarding communities against the impacts of extreme weather events and ensuring the sustainable management of water resources in the area.
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 Patterson Creek No. 1 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| So. Branch Potomac River Nr Petersburg | 2,670 cfs | → |
| So Fk South Branch Potomac R Nr Moorefield | 1,120 cfs | → |
| N F South Br Potomac R At Cabins | 1,790 cfs | → |
| North Branch Potomac River At Steyer | 476 cfs | → |
| Blackwater R Nr Davis | 132 cfs | → |
| Abram Creek At Oakmont | 236 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Patterson Creek No. 1 Dam.
Boat launches
Campgrounds
- Red Creek Campground
- Abram’S Creek Retreat & Campground
- Camp Site 7
- Camp Site 6
- Wallman/Laurel Run - Potomac State Forest
- Jess Judy Group Campground
Fishing spots
- Little Youghiogheny River Reservoir
- Dry Fork
- Broadford Lake
- Savage River Reservoir
- Snowy Creek
- Tomahawk Pond Day Use Area
Paddle runs
- Jake Hill Road Bridge To Shreve Store
- Perennial Stream At Forks To Dolly Sods Wilderness Boundary
- High Ridge Run To Outskirts Of Hopeville
- Shreve Store To Big Bend Campground
- Big Bend Campground To Canyon Exit (Just Prior To Confluence With North Branch)
- Enter Dolly Sods Wilderness To Exit Dolly Sods Wilderness
Track Patterson Creek No. 1 Dam 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 Patterson Creek No. 1 Dam
Where does the data for Patterson Creek No. 1 Dam 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Patterson Creek No. 1 Dam.