Tmpa Gibbons Creek Mine Dam Sp-1 is an earth dam located in Grimes County, Texas, built in 1987. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 4,750 ft long, taller than 50% 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 Tmpa Gibbons Creek Mine Dam Sp-1
Tmpa Gibbons Creek Mine Dam Sp-1 is a dam in Grimes, Texas. The dam is owned by Texas Municipal Power Agency (local government). It impounds the Rock Lake Creek.
The dam stands 25 feet tall and stretches 4,750 feet across, creates a reservoir covering 87 acres, has a maximum storage capacity of 1,095 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1987, the structure is 39 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 04/23/1987. That was over 39 years ago.
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Location
| State | Texas |
| County | Grimes |
| River/Stream | Rock Lake Creek |
| Coordinates | 30.57135, -96.08167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 4,750 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 1,095 acre-ft |
| Max Storage | 1,095 acre-ft |
| Normal Storage | 440 acre-ft |
| Surface Area | 87 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Texas Municipal Power Agency |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/23/1987 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX06524 |
| Federal ID | TX06524 |
| More Info | State Dam Safety Program |