Marcot Park dam
Marcot Park
Marcot Park, also known as Green Back Grave, is a privately owned irrigation dam located in Cedaredge, Delta County, Colorado. Completed in 1956, this earth dam stands at a height of 39 feet and has a storage capacity of 648 acre-feet, serving the primary purpose of irrigation. With a surface area of 43 acres and a drainage area of 3 square miles, the dam on the Surface Creek-TR river system plays a vital role in water resource management in the region.
Despite its fair condition assessment and high hazard potential, Marcot Park dam is regulated, inspected, and enforced by the Colorado Department of Water Resources, ensuring its safe operation and maintenance. The dam lacks a spillway and features slide and uncontrolled outlet gates, making it essential for ongoing risk assessment and management measures to prevent potential emergencies. The surrounding area is at risk of inundation, emphasizing the importance of emergency preparedness and adherence to guidelines for the dam's operation.
With a high risk rating and a history of periodic inspections, Marcot Park dam remains a critical infrastructure for irrigation in the region. As climate change continues to impact water resources, enthusiasts and stakeholders must closely monitor and support the maintenance and management of dams like Marcot Park to ensure the sustainable utilization of water for agricultural purposes and environmental conservation in Colorado.
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.
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Marcot Park.
Boat launches
- Forest Road 125 Delta County
- Big Creek Reservoir Boat Launch Grand Valley Rd
- Forest Road 121 Mesa County
- Lakeshore Drive Delta County
- Ward Lake Boat Access - Grand Valley Rd
- State Highway 65 25261, Delta County
Campgrounds
- Weir And Johnson
- Weir & Johnson Campground - Grand Valley Rd
- Twin Lake
- Twin Lake Dispersed Camping Area
- Big Creek
- Big Creek Campground - Grand Valley Rd
Fishing spots
- Cedar Mesa Reservoir
- Weir & Johnson Reservoir
- Vela
- Park Reservoir
- Atkinson Reservoir
- Youngs Creek Reservoirs
Track Marcot Park 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 Marcot Park
Where does the data for Marcot Park 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 Marcot Park.