Miller No. 2 dam
Miller No. 2
Miller No. 2, located in Chugwater, Wyoming, is a privately owned earth dam that serves primarily for irrigation purposes. Completed in 1951, this structure stands 29 feet tall with a hydraulic height of 24 feet and a length of 600 feet. It has a storage capacity of 108 acre-feet and a surface area of 11 acres, drawing water from the North Chugwater Creek for agricultural use. Despite its low hazard potential, the dam's condition assessment reveals it to be in poor condition, warranting regular inspections and potential maintenance.
Managed by the State Engineer's Office, Miller No. 2 is regulated, permitted, inspected, and enforced by the state authorities to ensure its safety and compliance with regulations. The dam features an uncontrolled spillway with a width of 70 feet and an outlet gate for water discharge. The inspection frequency is set at every five years, with the last assessment conducted in June 2021. While the dam poses a moderate risk level, there is no Emergency Action Plan (EAP) in place, raising concerns about emergency preparedness and response in case of a hazard event.
With Liz Cheney representing Congressional District 00 in Wyoming, Miller No. 2 remains a vital water resource infrastructure in the region despite its poor condition. Climate and water resource enthusiasts are urged to monitor the dam's risk management measures and advocate for sustainable practices to ensure the safety and longevity of this essential irrigation structure. As discussions around water security and climate resilience continue, addressing the maintenance needs of dams like Miller No. 2 becomes crucial in safeguarding water availability for agricultural and other purposes in the face of changing environmental conditions.
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 Miller No. 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sybille Creek Ab Mule Creek | 143 cfs | → |
| Sybille Creek Ab Canal No. 3 | 93 cfs | → |
| Laramie River Near Bosler | 1,950 cfs | → |
| Laramie River At Laramie | 118 cfs | → |
| Crow Creek At 19th Street | 3 cfs | → |
| North Platte River Below Whalen Diversion Dam | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Miller No. 2.
Campgrounds
Fishing spots
- Rock Lake
- Wheatland Reservoir #1
- Wheatland Reservoir #3
- Upper North Crow Reservoir
- Lower North Crow Reservoir
- Granite Springs Reservoir
Paddle runs
More reservoirs
Track Miller No. 2 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 Miller No. 2
Where does the data for Miller No. 2 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 Miller No. 2.