Horsetooth dam
Horsetooth
Horsetooth Reservoir, located in Larimer County, Colorado, is a stunning example of a federal water resource managed by the Bureau of Reclamation for irrigation purposes. Completed in 1948, this earth dam stands at a height of 155 feet, with a storage capacity of 170,370 acre-feet and a surface area of 2,040 acres. The reservoir is situated along the Cache la Poudre River and plays a crucial role in water management in the region.
With a high hazard potential, Horsetooth Reservoir is subject to regular inspections and maintenance by the Bureau of Reclamation to ensure its structural integrity. Despite being primarily used for irrigation, the reservoir also offers recreational activities such as boating, fishing, and hiking, making it a popular destination for locals and tourists alike. Its strategic location near Fort Collins adds to its appeal as a natural oasis in the midst of urban development.
Horsetooth Reservoir serves as a vital water source in the region, highlighting the importance of sustainable water management practices in the face of changing climate patterns. Its scenic beauty, combined with its functional utility, makes it a significant asset for both water resource management and outdoor recreation enthusiasts 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.
Nearby streamflow gauges
USGS streamgauges around Horsetooth -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cache La Poudre R A Mo Of Cn | 471 cfs | → |
| Cache La Poudre River At Fort Collins | 287 cfs | → |
| Cache La Poudre R Ab Boxelder C | 266 cfs | → |
| Buckhorn Creek Near Masonville | 21 cfs | → |
| North Fork Cache La Poudre R. At Livermore | 7 cfs | → |
| Big Thompson River At Loveland | 80 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Horsetooth.
Boat launches
- Boat Ramp Larimer County
- Filter Plant River Access Point (Put-In)
- Bridges River Access Point (Take-Out)
- Bridges River Access Point (Take-Out #2)
- Bridges River Access Point (Put-In)
- Pineview River Access Point (Put-In, Take-Out)
Campgrounds
- Inlet Bay - Horsetooth Reservoir
- South Bay - Horsetooth Reservoir
- Ansel Watrous Campground
- Ansel Watrous
- Stove Prairie Campground
- Boyd Lake State Park
Fishing spots
- Horsetooth Reservoir
- Watson Lake
- Ft. Collins City Park
- Sheldon Lake (City Park)
- Dixon Reservoir
- North Shields Ponds
Paddle runs
Track Horsetooth 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 Horsetooth
Where does the data for Horsetooth 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 Horsetooth.