Coleman Dam dam
Coleman Dam
Coleman Dam, situated in Coleman, Texas, along the Jim Ned Creek, is a vital water resource infrastructure designed primarily for irrigation purposes. Built in 1966 by Forrest and Cotton, this earth dam stands at a height of 90 feet, with a hydraulic height of 90 feet and a structural height of 92 feet. The dam's reservoir has a storage capacity of 91,680 acre-feet, with a normal storage level of 38,846 acre-feet, covering a surface area of 1,886 acres and draining a watershed area of 299 square miles.
The dam features an uncontrolled spillway with a width of 1,507 feet and is maintained by the Texas Commission on Environmental Quality (TCEQ) as the state regulatory agency. The dam's condition assessment as of August 2015 was deemed satisfactory, with a moderate risk rating. With a last inspection date in January 2015 and an inspection frequency of 5 years, Coleman Dam continues to play a crucial role in water supply, irrigation, recreation, and serves as a significant infrastructure for the local community in Coleman.
Despite not having associated locks, Coleman Dam is equipped with slide and valve outlet gates for operational purposes. The dam has been constructed to withstand potential hazards, although specific hazard potential information is not available. Overall, Coleman Dam stands as a testament to effective water resource management and serves as a key component in ensuring water availability for agricultural irrigation and recreational activities 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 Coleman Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hords Ck Nr Coleman | · | → |
| Jim Ned Ck At Cr 140 Nr Coleman | · | → |
| Pecan Bayou Nr Cross Cut | 203 cfs | → |
| Elm Ck At Ballinger | 61 cfs | → |
| Cat Claw Ck At Abilene | · | → |
| Cedar Ck At Ih 20 | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Coleman Dam.
Track Coleman Dam 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 Coleman Dam
Where does the data for Coleman Dam 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 Not Available 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 Coleman Dam.