Operating Basin No 1 Levee is an earth dam located in Calhoun County, Texas, built in 1957. It carries a Low hazard potential classification.
Dam profile
NID height · 13 ft13 ft tall and 14,400 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 Operating Basin No 1 Levee
Operating Basin No 1 Levee is a dam in Calhoun, Texas. The dam is owned by Union Carbide Corporation (private). It impounds the Off Ch-goff Bayou.
The dam stands 13 feet tall and stretches 14,400 feet across, creates a reservoir covering 480 acres, and has a maximum storage capacity of 3,155 acre-feet. Completed in 1957, 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.
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Location
| State | Texas |
| County | Calhoun |
| River/Stream | Off Ch-goff Bayou |
| Coordinates | 28.48333, -96.79167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 14,400 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 3,155 acre-ft |
| Max Storage | 3,155 acre-ft |
| Normal Storage | 2,016 acre-ft |
| Surface Area | 480 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | Union Carbide Corporation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03687 |
| Federal ID | TX03687 |
| More Info | State Dam Safety Program |