Iatan Lake Dam is an earth dam located in Howard County, Texas, built in 1900. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 1,440 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Iatan Lake Dam
The primary purpose of Iatan Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Union Pacific Railroad Company (private). It impounds the Tr-dugout Creek.
The dam stands 24 feet tall and stretches 1,440 feet across, creates a reservoir covering 160 acres, has a maximum storage capacity of 209 acre-feet, and collects water from a drainage area of 3,833 square miles. Completed in 1900, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 03/06/1986. That was over 40 years ago.
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Location
| State | Texas |
| County | Howard |
| River/Stream | Tr-dugout Creek |
| Coordinates | 32.30713, -101.24594 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 22 ft |
| Dam Length | 1,440 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 209 acre-ft |
| Max Storage | 209 acre-ft |
| Normal Storage | 172 acre-ft |
| Surface Area | 160 acres |
| Drainage Area | 3,833 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Union Pacific Railroad Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/06/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03796 |
| Federal ID | TX03796 |
| More Info | State Dam Safety Program |