Calvert Mine Spc 18 Dam
Calvert Mine Spc 18 Dam is an earth dam located in Robertson County, Texas, built in 1992. It carries a Low hazard potential classification.
About Calvert Mine Spc 18 Dam
The primary purpose of Calvert Mine Spc 18 Dam 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 Patricia Broaddus (private). It impounds the Tr-walnut Creek.
The dam stands 28 feet tall and stretches 1,000 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 237 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1992, the structure is 34 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 07/24/2008. That was over 17 years ago.
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Location
| State | Texas |
| County | Robertson |
| River/Stream | Tr-walnut Creek |
| Coordinates | 31.07966, -96.64239 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 237 acre-ft |
| Max Storage | 237 acre-ft |
| Normal Storage | 103 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,140 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner | PATRICIA BROADDUS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/24/2008 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX06561 |
| Federal ID | TX06561 |
| More Info | State Dam Safety Program |