Jon R Coan Lake Dam is an earth dam located in Comanche County, Texas, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall. 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 Jon R Coan Lake Dam
The primary purpose of Jon R Coan Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Jon Coan (private). It impounds the Tr-sabana River.
The dam stands 23 feet tall, and has a maximum storage capacity of 138 acre-feet. Completed in 1978, the structure is 48 years 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 02/13/1985. That was over 41 years ago.
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Location
| State | Texas |
| County | Comanche |
| River/Stream | Tr-sabana River |
| Coordinates | 32.15910, -98.69543 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Normal Storage | 91 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Jon Coan |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 02/13/1985 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05920 |
| Federal ID | TX05920 |
| More Info | State Dam Safety Program |