Iatan Lake Dam Reservoir Report
Nearby: Allen Lake Dam Moss Creek Lake Dam
Last Updated: December 25, 2025
Iatan Lake Dam, located in Howard County, Texas, serves as a vital water supply resource for the region.
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Summary
Completed in 1900, this Earth-type dam stands at a height of 22 feet and spans a length of 1440 feet. With a maximum storage capacity of 209 acre-feet and a normal storage capacity of 172 acre-feet, the dam plays a crucial role in managing water resources in the area.
Despite its age, Iatan Lake Dam has not been rated for its condition, and its hazard potential is listed as "Not Available." However, its risk assessment is categorized as "High (2)", indicating the need for continued monitoring and maintenance. While it does not have a spillway or locks, the dam is equipped with one outlet gate. The last inspection of the dam took place in 1986, raising concerns about the need for updated safety assessments and emergency preparedness plans.
As water resource and climate enthusiasts, the unique characteristics of Iatan Lake Dam, such as its location along TR-Dugout Creek and its primary purpose of water supply, make it a fascinating subject for further study. The dam's historical significance, combined with its role in managing water storage and drainage in the region, highlights the importance of sustainable water management practices in the face of changing climate patterns. Continued efforts to assess and address the safety and maintenance needs of Iatan Lake Dam will be essential in ensuring the long-term viability of this critical water resource infrastructure.
Year Completed |
1900 |
Dam Length |
1440 |
Dam Height |
22 |
River Or Stream |
TR-DUGOUT CREEK |
Primary Dam Type |
Earth |
Surface Area |
160 |
Hydraulic Height |
22 |
Drainage Area |
3833 |
Nid Storage |
209 |
Structural Height |
24 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Beals Ck Nr Westbrook
|
0cfs |
Colorado Rv At Colorado City
|
1cfs |
Colorado Rv Nr Gail
|
0cfs |
Deep Ck Nr Dunn
|
0cfs |
N Concho Rv Abv Sterling City
|
0cfs |
Colorado Rv Abv Silver
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Iatan Lake Dam
Moss Ck Lk Nr Coahoma