Tdcj Wainwright Unit Garden Lake Dam is an earth dam located in Houston County, Texas, built in 1939. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 575 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 Tdcj Wainwright Unit Garden Lake Dam
The primary purpose of Tdcj Wainwright Unit Garden 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 Texas Department of Criminal Justice (state). It impounds the Tr-trinity River.
The dam stands 24 feet tall and stretches 575 feet across, and has a maximum storage capacity of 340 acre-feet. Completed in 1939, the structure is well-established, with more than 75 years of service.
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 03/23/1983. That was over 43 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Houston |
| River/Stream | Tr-trinity River |
| Coordinates | 30.96162, -95.61426 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 575 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 340 acre-ft |
| Max Storage | 340 acre-ft |
| Normal Storage | 200 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Texas Department of Criminal Justice |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/23/1983 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03287 |
| Federal ID | TX03287 |
| More Info | State Dam Safety Program |