Grimes Lake Dam is an earth dam located in Leon County, Texas, built in 1971. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 660 ft long, taller than 65% 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 Grimes Lake Dam
The primary purpose of Grimes Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Gywn (private). It impounds the Tomlin Branch.
The dam stands 29 feet tall and stretches 660 feet across, creates a reservoir covering 19 acres, and has a maximum storage capacity of 372 acre-feet. Completed in 1971, 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.
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Location
| State | Texas |
| County | Leon |
| River/Stream | Tomlin Branch |
| Coordinates | 31.14902, -96.20248 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 23 ft |
| Dam Length | 660 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 372 acre-ft |
| Max Storage | 372 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 19 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | John Gywn |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX02430 |
| Federal ID | TX02430 |
| More Info | State Dam Safety Program |