D.O.E. Rocky Flats C-2 dam
D.O.E. Rocky Flats C-2
D.O.E. Rocky Flats C-2, also known as Woman Creek No. 2, is a federally owned dam located in Westminster, Colorado. Operated by the Department of Energy (DOE), this dam serves as a vital water resource in Jefferson County, with a primary purpose classified as "Other." Completed in 1979, the Earth-type dam stands at a height of 32 feet and has a maximum storage capacity of 188 acre-feet. It spans a length of 1200 feet and has a spillway width of 250 feet for managing peak discharges of up to 19,100 cubic feet per second.
Situated on Woman Creek, D.O.E. Rocky Flats C-2 plays a crucial role in water management and flood control for the surrounding area. With state-regulated permitting, inspection, and enforcement processes in place, the dam is equipped to handle potential risks and emergencies with a low hazard potential. Despite its moderate risk assessment, the dam's condition assessment is currently not available, highlighting the need for ongoing monitoring and maintenance to ensure its continued effectiveness in safeguarding the local watershed.
Managed by the DOE for construction, funding, regulation, inspection, and operation, D.O.E. Rocky Flats C-2 represents a collaborative effort to balance water resource needs with environmental protection. With its strategic location and design features, this dam serves as a critical infrastructure asset in Colorado's water management system, demonstrating a commitment to sustainable water resource management amidst changing climate conditions and increasing demands for water security in the region.
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 D.O.E. Rocky Flats C-2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Coal Creek Near Plainview | 4 cfs | → |
| Big Dry Creek At Westminster | 1 cfs | → |
| Little Dry Creek At Westminster | 2 cfs | → |
| Clear Creek At Golden | 106 cfs | → |
| Boulder Creek Near Orodell | 65 cfs | → |
| Boulder Cr At North 75th St Nr Boulder | 78 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near D.O.E. Rocky Flats C-2.
Boat launches
- Standley Lake Trail Westminster
- Ralston Creek Trail Arvada
- West 69th Avenue 4700, Westminster
- Miramonte Road Boulder County
- Fisherman's Trail Lakewood
- C-470 Trail Lakewood
Campgrounds
- Tipi Village
- Standley Lake
- Clear Creek Rv Park
- Camp Patiya
- Rifleman Phillips Group Campground
- Aspen Meadow - Golden Gate Canyon State Park
Fishing spots
Track D.O.E. Rocky Flats C-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 D.O.E. Rocky Flats C-2
Where does the data for D.O.E. Rocky Flats C-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 D.O.E. Rocky Flats C-2.