Crescent Lake #1 dam
Crescent Lake #1
Crescent Lake #1, located in Garfield, Colorado, is a privately owned rockfill dam constructed in 1935 for irrigation purposes. The dam stands at a height of 13 feet and has a storage capacity of 384 acre-feet, with a normal storage level of 237 acre-feet. The dam is situated on the SOUTH FORK DERBY CR, with a drainage area of 1 square mile.
Although the dam has a low hazard potential and is currently in fair condition, it is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with regulations. The spillway, of uncontrolled type, has a width of 124 feet to manage maximum discharge of 1205 cubic feet per second. The dam's emergency action plan status and risk assessment are currently under review, with moderate risk identified.
Crescent Lake #1 serves as a significant water resource in the area, providing irrigation water to support agricultural activities. With its historical significance and moderate risk profile, the dam represents a vital infrastructure for water management in the region, warranting continued monitoring and maintenance to ensure its long-term functionality and safety.
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 Crescent Lake #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Colorado River Near Dotsero | 1,240 cfs | → |
| Eagle River Below Gypsum | 656 cfs | → |
| Colorado River Below Glenwood Springs | 3,130 cfs | → |
| Roaring Fork River At Glenwood Springs | 1,310 cfs | → |
| White River Below North Elk Creek Near Buford | 803 cfs | → |
| Yampa River Above Stagecoach Reservoir | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Crescent Lake #1.
Boat launches
- Pinball Access Boat Ramp
- Cottonwood Island Boat Ramp
- Lyon's Gulch Boat Ramp
- Catamount Bridge Boat Ramp
- Dotsero Landing Boat Ramp
- Community Boat Ramp
Campgrounds
- Trappers Lake
- Trappers Lake / Cutthroat Campground
- Trappers Lake / Trapline Campground
- Trappers Lake / Bucks Campground
- Trappers Lake / Horse Thief Campground
- Trappers Lake / Shepherds Rim Campground
Fishing spots
- Trappers Lake
- Lake Of The Woods
- Bear Lake Fishing Pier
- Yamcolo Reservoir
- Deep Lake Fishing/Picnic Area Fishing Site
- Crosho Lake
Track Crescent Lake #1 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 Crescent Lake #1
Where does the data for Crescent Lake #1 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 Crescent Lake #1.