Lake Timpson Dam is an earth dam located in Shelby County, Texas, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 1,480 ft long, taller than 68% 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 Lake Timpson Dam
The primary purpose of Lake Timpson Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Shelby County Fwsd 1 (local government). It impounds the Blackwater Creek.
The dam stands 30 feet tall and stretches 1,480 feet across, creates a reservoir covering 230 acres, has a maximum storage capacity of 5,280 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1956, 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 10/03/2018.
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Location
| State | Texas |
| County | Shelby |
| River/Stream | Blackwater Creek |
| Coordinates | 31.84440, -94.42889 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,480 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 5,280 acre-ft |
| Max Storage | 5,280 acre-ft |
| Normal Storage | 1,881 acre-ft |
| Surface Area | 230 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 14,760 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Shelby County Fwsd 1 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/03/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX00315 |
| Federal ID | TX00315 |
| More Info | State Dam Safety Program |