Operating Basins 1-5
Operating Basins 1-5 is an earth dam located in Calhoun County, Texas, built in 1965. It carries a Significant hazard potential classification.
About Operating Basins 1-5
Operating Basins 1-5 is a dam in Calhoun, Texas. The dam is owned by Union Carbide Corporation (private). It impounds the Off Ch-west Coloma Creek.
The dam stands 12 feet tall and stretches 24,890 feet across, creates a reservoir covering 543 acres, has a maximum storage capacity of 5,702 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 12/19/2016.
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Location
| State | Texas |
| County | Calhoun |
| River/Stream | Off Ch-west Coloma Creek |
| Coordinates | 28.51664, -96.75730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 24,890 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 5,702 acre-ft |
| Max Storage | 5,702 acre-ft |
| Normal Storage | 3,810 acre-ft |
| Surface Area | 543 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | UNION CARBIDE CORPORATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 12/19/2016 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX04743 |
| Federal ID | TX04743 |
| More Info | State Dam Safety Program |