Patterson Creek No. 6 Dam dam
Patterson Creek No. 6 Dam
Patterson Creek No. 6 Dam, also known as Thorn Run, is a vital structure in Grant, West Virginia, designed by the USDA NRCS and completed in 1967 for the primary purpose of flood risk reduction. This earth dam stands at a height of 82 feet and has a hydraulic height of 74 feet, with a length of 755 feet. Situated on the Elklick Run river, the dam provides a storage capacity of 513 acre-feet, with a normal storage level of 22 acre-feet, covering a surface area of 5 acres and draining a 2.1 square mile watershed.
Managed by the local government and regulated by the West Virginia Division of Water and Waste Management, Patterson Creek No. 6 Dam has a high hazard potential due to its location and design. Despite not being rated for its condition, regular inspections are conducted every two years to ensure its integrity and safety. The dam features an uncontrolled spillway and outlet gates, with no associated locks for navigation purposes. The risk assessment for the dam is moderate, with risk management measures yet to be detailed.
In the event of an emergency, the dam's Emergency Action Plan (EAP) was last revised in May 2014, with updated contact information and guidelines to meet. While inundation maps are not readily available, the dam's risk characterization and management measures are still pending. With a congressman representing the area, David B. McKinley, the Patterson Creek No. 6 Dam remains a critical asset for flood protection and water resource management in the region, warranting continued monitoring and maintenance for the community's safety and well-being.
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. 6 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| North Branch Potomac River At Steyer | 60 cfs | → |
| Abram Creek At Oakmont | 17 cfs | → |
| Mcmillan F Near Fort Pendleton | 2 cfs | → |
| North Branch Potomac River At Kitzmiller | 100 cfs | → |
| Blackwater R Nr Davis | 132 cfs | → |
| So. Branch Potomac River Nr Petersburg | 195 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Patterson Creek No. 6 Dam.
Boat launches
Campgrounds
- Abram’S Creek Retreat & Campground
- Wallman/Laurel Run - Potomac State Forest
- Lost Land Run - Potomac State Forest
- Camp Site 7
- Red Creek Campground
- Camp Site 6
Fishing spots
- Little Youghiogheny River Reservoir
- Broadford Lake
- Snowy Creek
- Savage River Reservoir
- Dry Fork
- Deep Creek Lake
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
- State Park Bridge To North Fork
- Begins As River Passes Under The Herrington Manor Road Bridge At Oakland, Maryland To The Corporate Boundary Of Friendsville, Maryland
- Shreve Store To Big Bend Campground
Track Patterson Creek No. 6 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. 6 Dam
Where does the data for Patterson Creek No. 6 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. 6 Dam.