Non Potable Reservoir Dam 4 dam
Non Potable Reservoir Dam 4
Non Potable Reservoir Dam 4, located in El Paso County, Colorado, was completed in 1958 by the renowned design firm SKIDMORE, OWINGS, AND MERRILL. This Federal-owned earth dam stands at 80 feet in height, with a maximum storage capacity of 150 acre-feet and a surface area of 6.5 acres. The dam primarily serves the purpose of flood risk reduction along Goat Camp Creek, a tributary in the area.
The dam's structure includes buttress core types resting on rock and soil foundations, with an uncontrolled spillway width of 20 feet. The dam's low hazard potential is supported by regular state inspections and maintenance, demonstrating a commitment to safety and regulatory compliance by the US Air Force, the primary owning and operating agency. Despite its moderate risk assessment, the dam's overall condition assessment remains unavailable, highlighting the importance of ongoing monitoring and risk management measures for its continued safety and functionality.
Non Potable Reservoir Dam 4 not only plays a crucial role in flood risk reduction but also supports irrigation purposes in the region. Located in Colorado Springs and under the jurisdiction of the Department of Defense USAF, this dam is a vital component of the local water resource infrastructure. As water resource and climate enthusiasts, understanding and appreciating the design, construction, and ongoing maintenance of dams like Non Potable Reservoir Dam 4 is essential for ensuring the resilience and sustainability of our water supply systems 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 Non Potable Reservoir Dam 4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Monument C Ab N.Gate Blvd At Usaf Academy | 7 cfs | → |
| West Monument Creek At Air Force Academy | 3 cfs | → |
| West Monument Creek Below Rampart Reservoir | 4 cfs | → |
| Pine Creek Abv Briargate Pkwy | 3 cfs | → |
| Monument Creek At Palmer Lake | 1 cfs | → |
| Monument Cr Abv Woodmen Rd At Colorado Springs | 16 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Non Potable Reservoir Dam 4.
Campgrounds
Fishing spots
- Deadmans Creek
- Nichols Reservoir
- Rampart Reservoir
- Homestake Fishing Site
- Monument Lake (El Paso County)
- Upper Reservoir - Palmer Lake
Track Non Potable Reservoir Dam 4 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 4
Where does the data for Non Potable Reservoir Dam 4 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 Non Potable Reservoir Dam 4.