Tumco Dam L-3 is an earth dam located in Titus County, Texas, built in 1996. It carries a Low hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall and 4 ft long. 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 Tumco Dam L-3
The primary purpose of Tumco Dam L-3 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Txu Mining Company LP (private). It impounds the Hayes Creek.
The dam stands 8 feet tall and stretches 4 feet across, creates a reservoir covering 303 acres, has a maximum storage capacity of 68 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1996, the structure is 30 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 | Titus |
| River/Stream | Hayes Creek |
| Coordinates | 33.20139, -94.98944 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 4 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 68 acre-ft |
| Max Storage | 68 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 303 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | Txu Mining Company LP |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX07048 |
| Federal ID | TX07048 |
| More Info | State Dam Safety Program |