Or Mitchell Lake 1 Dam is an earth dam located in Bexar County, Texas, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 2,537 ft long, taller than 74% of U.S. dams with a recorded height. 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 Or Mitchell Lake 1 Dam
The primary purpose of Or Mitchell Lake 1 Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bexar Metropolitan Water District (local government). It impounds the Medio Creek.
The dam stands 32 feet tall and stretches 2,537 feet across, creates a reservoir covering 60 acres, and has a maximum storage capacity of 520 acre-feet. Completed in 1967, the structure is well into its service life at over 50 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 03/28/1994. That was over 32 years ago.
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Location
| State | Texas |
| County | Bexar |
| River/Stream | Medio Creek |
| Coordinates | 29.30644, -98.63384 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 2,537 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 520 acre-ft |
| Max Storage | 520 acre-ft |
| Normal Storage | 192 acre-ft |
| Surface Area | 60 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bexar Metropolitan Water District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/28/1994 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01443 |
| Federal ID | TX01443 |
| More Info | State Dam Safety Program |