Herrington Manor dam
Herrington Manor
Herrington Manor, also known as Herrington Creek Dam, is a state-owned structure located in Garrett County, Maryland. Built in 1938, this earth dam stands at a height of 24 feet and stretches 787 feet in length. Its primary purpose is for recreation, with a normal storage capacity of 216 acre-feet and a maximum storage of 722 acre-feet. The dam overlooks Herrington Run and is situated in a picturesque area surrounded by natural beauty.
Managed by the Maryland Dam Safety agency, Herrington Manor has a low hazard potential and is classified as being in satisfactory condition. The dam has undergone structural modifications in 1998 to ensure its continued safety and functionality. With a moderate risk assessment rating, the dam is regularly inspected every 5 years to maintain its integrity and ensure public safety. Its uncontrolled spillway, with a width of 105 feet, helps regulate water flow and prevent overflow during heavy precipitation events.
Visitors to Herrington Manor can enjoy a variety of recreational activities such as fishing, boating, and hiking in the surrounding area. The dam's location in Crellin, Maryland, offers a peaceful retreat for water resource and climate enthusiasts to appreciate the importance of dam infrastructure in managing water resources and mitigating natural disasters.
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 Herrington Manor -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Youghiogheny River Near Oakland | 108 cfs | → |
| Cheat River At Albright | 1,200 cfs | → |
| Mcmillan F Near Fort Pendleton | 2 cfs | → |
| North Branch Potomac River At Steyer | 74 cfs | → |
| Youghiogheny River At Friendsville | 259 cfs | → |
| Bear Creek At Friendsville | 32 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Herrington Manor.
Boat launches
- Blue Trail Garrett County
- Mount Zion Road Garrett County
- Mill Run Road Garrett County
- Jockey Hollow
- Somerfield North Boat Ramp
- Tubs Run
Campgrounds
- Swallow Falls State Park
- Deep Creek Lake State Park
- Lost Land Run - Potomac State Forest
- Wallman/Laurel Run - Potomac State Forest
- Abram’S Creek Retreat & Campground
- Robert W. Craig - Jennings Randolph Lake
Fishing spots
- Deep Creek Lake
- Snowy Creek
- Broadford Lake
- Little Youghiogheny River Reservoir
- Bruceton Mills Public Fishing Area
- Savage River Reservoir
Paddle runs
- Begins As River Passes Under The Herrington Manor Road Bridge At Oakland, Maryland To The Corporate Boundary Of Friendsville, Maryland
- Begins Below The Youghiogheny River Lake Dam In Confluence, Pennsylvania To Ends In South Connellsville, Pennsylvania
- State Park Bridge To North Fork
- North Fork To Hickory Lick Run
- Otter Creek To Blackwater
- Glady Fork River To Otter Creek
Track Herrington Manor 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 Herrington Manor
Where does the data for Herrington Manor 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 Low 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 Herrington Manor.