Lethco Lake Dam dam
Lethco Lake Dam
Lethco Lake Dam, located in Mills, Texas, is a private-owned structure built in 1975 for water supply purposes. Standing at 25 feet high with a length of 440 feet, this Earth-type dam on Pompey Creek has a storage capacity of 85 acre-feet. Despite its relatively small size, the dam plays a crucial role in providing water to the surrounding area.
With no spillway and a hazard potential rated as "Not Available," the dam's condition remains unrated, posing a potential risk that has been classified as high. The lack of information on inspections and emergency preparedness raises concerns about the safety and maintenance of the structure. Water resource and climate enthusiasts may find interest in advocating for increased oversight and maintenance to ensure the long-term stability and functionality of Lethco Lake Dam for the community it serves.
The Fort Worth District of the US Army Corps of Engineers does not have jurisdiction over Lethco Lake Dam, leaving the responsibility of regulation and enforcement to the state of Texas. With limited information on inspections, emergency response plans, and risk management measures, there is a need for greater transparency and accountability in ensuring the safety and reliability of this essential water supply infrastructure. As advocates for sustainable water resource management, enthusiasts may seek to engage with local authorities to address the potential risks associated with the dam and promote proactive measures to safeguard the surrounding ecosystem and community.
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 Lethco Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pecan Bayou Nr Mullin | 2 cfs | → |
| Leon Rv Nr Hasse | 0 cfs | → |
| Copperas Ck At Fm 2247 Nr Comanche | 3 cfs | → |
| Colorado Rv Nr San Saba | 132 cfs | → |
| San Saba Rv At San Saba | 93 cfs | → |
| Sabana Rv Nr De Leon | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lethco Lake Dam.
Boat launches
- Hwy 45 Bridge. Colorado River Access
- Farm-To-Market Road 2861 Comanche County
- Comanche County
- Shaw Bend; Cr 124 Bridge. Colorado River Access
- Port Promontory Drive Comanche County
Track Lethco Lake 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 Lethco Lake Dam
Where does the data for Lethco Lake 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 Lethco Lake Dam.