Tanyard Lake Dam
Tanyard Lake Dam is an earth dam located in Harrison County, Texas, built in 1958. It carries a Low hazard potential classification.
About Tanyard Lake Dam
Tanyard Lake Dam is a dam in Harrison, Texas. The dam is owned by Eastman Chemical Company (private). It impounds the Tanyard Branch.
The dam stands 46 feet tall and stretches 1,400 feet across, creates a reservoir covering 101 acres, has a maximum storage capacity of 2,600 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1958, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 11/15/2017.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Texas |
| County | Harrison |
| River/Stream | Tanyard Branch |
| Coordinates | 32.43042, -94.68118 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 1,400 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 2,600 acre-ft |
| Max Storage | 2,600 acre-ft |
| Normal Storage | 1,120 acre-ft |
| Surface Area | 101 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 3,220 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | EASTMAN CHEMICAL COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 11/15/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX03556 |
| Federal ID | TX03556 |
| More Info | State Dam Safety Program |