Grimes Brooks dam
Grimes Brooks
Grimes Brooks, located in Routt County, Colorado, is a privately owned irrigation dam on Red Dirt Creek-TR. Built in 1903, this earth dam stands at a height of 31 feet and spans a length of 680 feet, with a storage capacity of 720 acre-feet. The dam serves the primary purpose of irrigation and has a spillway width of 40 feet for uncontrolled discharge.
With a high hazard potential and a satisfactory condition assessment as of June 2020, Grimes Brooks has undergone modifications in 1952 and 1995 to enhance its foundation, hydraulic, mechanical, and structural aspects. The dam is subject to regular inspections, with the last one conducted in June 2020, and has an emergency action plan in place. Managed by the Colorado Department of Water Resources, this dam plays a crucial role in water resource management and agriculture in the region, highlighting the importance of monitoring and maintaining such vital infrastructure for climate resilience and water 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 Grimes Brooks -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Piney River Near State Bridge | 113 cfs | → |
| Yampa River Above Stagecoach Reservoir | 7 cfs | → |
| Colorado River Near Kremmling | 236 cfs | → |
| Yampa River Below Stagecoach Reservoir | 16 cfs | → |
| Muddy Crk Blw Wolford Mtn Reser. Nr Kremmling | 20 cfs | → |
| Eagle River Below Gypsum | 616 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grimes Brooks.
Boat launches
- Catamount Bridge Boat Ramp
- Two Bridges Boat Ramp
- State Bridge Boat Ramp
- Pinball Access Boat Ramp
- State Bridge River Access
- Radium Rec Site Boat Ramp
Campgrounds
Fishing spots
- Yamcolo Reservoir
- Bear Lake Fishing Pier
- Crosho Lake
- Stagecoach Reservoir
- Trappers Lake
- Lake Of The Woods
Track Grimes Brooks 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 Grimes Brooks
Where does the data for Grimes Brooks 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 Grimes Brooks.