Anderson Reservoir dam
Anderson Reservoir
Anderson Reservoir, located in Garfield County, Colorado, is a Federal-owned Earth dam that serves as a Fish and Wildlife Pond. Completed in 1967, this reservoir has a height of 12 feet and a storage capacity of 100 acre-feet, with a maximum storage of 100 acre-feet. The dam is primarily made of stone and rests on a foundation of rock and soil, with an uncontrolled spillway that is 8 feet wide.
Despite being classified as a low hazard potential structure, Anderson Reservoir has a moderate risk assessment rating of 3. The last inspection of the dam was conducted in August 2017, with an inspection frequency of every 10 years. Currently, the condition of the dam is not rated, and there are no emergency action plans or inundation maps prepared for this structure.
With its scenic location and important role in providing habitat for fish and wildlife, Anderson Reservoir is a significant water resource in Colorado. As climate change continues to impact water availability and quality in the region, the management and maintenance of this reservoir will be essential to ensure its continued functionality and safety for both the environment and nearby communities.
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 Anderson Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| White River Below North Elk Creek Near Buford | 744 cfs | → |
| Yampa River Above Stagecoach Reservoir | 7 cfs | → |
| White River Above Coal Creek | 464 cfs | → |
| Yampa River Below Stagecoach Reservoir | 16 cfs | → |
| Colorado River Near Dotsero | 1,210 cfs | → |
| White River Near Meeker | 506 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Anderson Reservoir.
Boat launches
- Pinball Access Boat Ramp
- Catamount Bridge Boat Ramp
- Cottonwood Island Boat Ramp
- Lyon's Gulch Boat Ramp
- Uncompahgre Road Routt County
- Dotsero Landing Boat Ramp
Campgrounds
- Himes Peak Campground
- Himes Peak
- Trappers Lake / Shepherds Rim Campground
- Trappers Lake / Horse Thief Campground
- Trappers Lake / Bucks Campground
- Trappers Lake / Trapline Campground
Fishing spots
- Lake Of The Woods
- Trappers Lake
- Bear Lake Fishing Pier
- Yamcolo Reservoir
- Crosho Lake
- Deep Lake Fishing/Picnic Area Fishing Site
Paddle runs
- Headwaters To Flat Tops Wilderness Boundary
- Flat Tops Wilderness Boundary To Nf Boundary
- Headwaters At Deep Lake Outlet To 1/4 Mile Downstream
- Burns To Dotsero
- 1/4 Mile Below Headwaters To Deep Creek Diversion Ditch
- Deep Creek Diversion Ditch To Blm/Private Land Boundary
Track Anderson Reservoir 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 Anderson Reservoir
Where does the data for Anderson Reservoir 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 Anderson Reservoir.