Markwood Cedar Lake Dam dam
Markwood Cedar Lake Dam
Markwood Cedar Lake Dam, located in Reeses Mill, West Virginia, is a private earth dam with a height of 34 feet and a length of 297 feet. The dam has a storage capacity of 29.3 acre-feet and serves the primary purpose of water resource management. Despite being privately owned, the dam is not regulated or inspected by the state, with a low hazard potential and a condition assessment that is currently not rated.
The dam, situated on the Patterson Creek Tributary, falls under the jurisdiction of the Pittsburgh District of the US Army Corps of Engineers. With no associated structures or federal agency involvement, the dam's risk assessment, emergency action plan, and inundation maps are currently not available. The lack of state regulation and inspection highlights the importance of monitoring and maintaining the dam to ensure its continued safety and functionality for the surrounding community and ecosystem. For water resource and climate enthusiasts, Markwood Cedar Lake Dam presents an intriguing case study of a privately owned structure in need of proper management and oversight to mitigate potential risks and ensure long-term sustainability.
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 Markwood Cedar Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Patterson Creek Near Headsville | 472 cfs | → |
| Georges Creek At Franklin | 244 cfs | → |
| North Branch Potomac River At Luke | 3,810 cfs | → |
| South Branch Potomac River Near Springfield | 5,680 cfs | → |
| North Branch Potomac River At Barnum | 2,780 cfs | → |
| North Branch Potomac River Near Cumberland | 5,790 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Markwood Cedar Lake Dam.
Boat launches
- Springfield Pike Hampshire County
- Chesapeake And Ohio Canal Trail Allegany County
- Mount Zion Road Garrett County
- Gordon Lake Boat Access
- Koon Lake Boat Access
- Bonds Landing Road Allegany County
Campgrounds
- Spring Gap - C And O Canal National Park
- Spring Gap Campsite
- Spring Gap
- Irons Mountain Hiker Biker Campsite
- Iron Mountain Campsite
- Pigmans Ferry Campsite
Fishing spots
- Dans Mountain Pond
- Georges Creek
- North Branch Potomac River
- Battie Mixon Ponds
- Savage River Reservoir
- Sand Spring Run
Paddle runs
- Capon Bridge To Ends Just South Of Largent
- Begins South Of Largent To The Confluence With The Potomac At Great Cacapon
- Begins Where The Lost River Becomes The Cacapon River To Wardensville
- The West Virginia 259 Bridge South Of Wardensville To Ends Where The Lost River Becomes The Cacapon River
- Wardensville To The Town Of Capon Bridge
- Begins As River Passes Under The Herrington Manor Road Bridge At Oakland, Maryland To The Corporate Boundary Of Friendsville, Maryland
Track Markwood Cedar Lake 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 Markwood Cedar Lake Dam
Where does the data for Markwood Cedar Lake 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 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 Markwood Cedar Lake Dam.