Non Potable Reservoir Dam 1 dam
Non Potable Reservoir Dam 1
Non Potable Reservoir Dam 1, located in Colorado Springs, is a federal-owned structure designed by SKIDMORE, OWINGS, AND MERRILL with a primary purpose of flood risk reduction. Completed in 1961, this earth dam stands at a height of 50 feet with a hydraulic height of 41 feet, offering a maximum storage capacity of 95 acre-feet. Its spillway, with a width of 23 feet, is uncontrolled, allowing for a maximum discharge of 820 cubic feet per second.
Managed by the US Air Force, Non Potable Reservoir Dam 1 is regulated by the Department of Water Resources, with inspection and enforcement measures in place to ensure its safety and functionality. The dam's hazard potential is classified as significant, with a moderate risk assessment rating. While its condition assessment is currently unavailable, emergency action plans have been prepared and updated to meet guidelines, ensuring the safety of surrounding areas in case of a potential breach.
The dam's location on Lehman Run in El Paso County, Colorado, underscores its vital role in flood risk reduction and irrigation. With a surface area of 5.8 acres and a drainage area of 5 square miles, Non Potable Reservoir Dam 1 plays a crucial role in water resource management within the region, highlighting the intersection of infrastructure, climate resilience, and environmental stewardship.
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 Non Potable Reservoir Dam 1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Monument C Ab N.Gate Blvd At Usaf Academy | 9 cfs | → |
| Pine Creek Abv Briargate Pkwy | 3 cfs | → |
| West Monument Creek At Air Force Academy | 2 cfs | → |
| Monument Cr Abv Woodmen Rd At Colorado Springs | 14 cfs | → |
| Cottonwood Creek At Mouth | 4 cfs | → |
| Cottonwood Ck At Union Blvd | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Non Potable Reservoir Dam 1.
Campgrounds
- Peregrine Pines Family Camp
- Peregrine Pines Military - Usaf Academy
- Thunder Ridge
- Thunder Ridge Campground
- Meadow Ridge
- 24
Fishing spots
- Deadmans Creek
- Nichols Reservoir
- Monument Lake (El Paso County)
- Pikeview Reservoir
- Homestake Fishing Site
- Rampart Reservoir
Track Non Potable Reservoir Dam 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 Non Potable Reservoir Dam 1
Where does the data for Non Potable Reservoir Dam 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 Significant 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 Non Potable Reservoir Dam 1.