Duvall #1 dam
Duvall #1
Duvall #1, located in Mesa, Colorado, is a privately owned Earth dam built in 1947 primarily for irrigation purposes. With a height of 29 feet and a storage capacity of 177 acre-feet, this dam stands along the Little Dolores-TR river. Despite its fair condition assessment and low hazard potential, a high risk assessment of 2 indicates potential areas of concern that may need to be addressed in the future.
The dam, with a length of 950 feet and a surface area of 15 acres, lacks a spillway but features outlet gates for controlled water release. It is regularly inspected every 6 years, with the last assessment conducted in September 2015. The surrounding area is monitored for any potential risks, and emergency preparedness measures are in place to address any unforeseen events.
As water resource and climate enthusiasts, understanding the infrastructure and condition of dams like Duvall #1 is crucial for ensuring their continued safe and efficient operation. With its historical significance and vital role in supporting irrigation activities in the region, ongoing monitoring and risk management efforts are essential to safeguarding both the dam and the surrounding community against potential hazards.
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 Duvall #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Gunnison River Near Grand Junction | 1,400 cfs | → |
| Dolores River Near Gateway | 161 cfs | → |
| Colorado River Near Colorado-Utah State Line | 3,480 cfs | → |
| Dolores River Near Cisco | 150 cfs | → |
| Colo River Blw Grd Valley Div Nr Palisade Co | 1,940 cfs | → |
| Colorado River Near Cisco | 3,440 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Duvall #1.
Boat launches
- Redlands Dam River Access
- Eagle Rim Trail Grand Junction
- Mesa County
- Whitewater Boat Launch
- State Highway 141 Mesa County
- 12 1/2 Rd Mesa County
Campgrounds
- Mud Springs Group Site B4
- Mud Springs Group Site B3
- Mud Springs B2
- Mud Springs A9
- Mud Springs B1
- Mud Springs A10
Fishing spots
Track Duvall #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 Duvall #1
Where does the data for Duvall #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 Duvall #1.