Allison Lake Dam
Allison Lake Dam is an earth dam located in Tyler County, Texas, built in 1965. It carries a Low hazard potential classification.
About Allison Lake Dam
The primary purpose of Allison Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Harold Allison (private). It impounds the Sevenmile Branch.
The dam stands 15 feet tall and stretches 800 feet across, creates a reservoir covering 20 acres, and has a maximum storage capacity of 120 acre-feet. Completed in 1965, 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 | Tyler |
| River/Stream | Sevenmile Branch |
| Coordinates | 30.75242, -94.31699 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 11 ft |
| Dam Length | 800 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 20 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | HAROLD ALLISON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03771 |
| Federal ID | TX03771 |
| More Info | State Dam Safety Program |