Calvert Mine Spc-31 Dam is an earth dam located in Robertson County, Texas, built in 1996. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 2,200 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 Calvert Mine Spc-31 Dam
Calvert Mine Spc-31 Dam is a dam in Robertson, Texas. The dam is owned by Walnut Creek Mining Company (private). It impounds the Tr-big Willow Crrek.
The dam stands 18 feet tall and stretches 2,200 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 160 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. The most recent inspection on record was 06/15/2004. That was over 22 years ago.
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Location
| State | Texas |
| County | Robertson |
| River/Stream | Tr-big Willow Crrek |
| Coordinates | 31.09731, -96.64032 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 2,200 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 696 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Walnut Creek Mining Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/15/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX09446 |
| Federal ID | TX09446 |
| More Info | State Dam Safety Program |