Barnes Lake Dam is an earth dam located in Lavaca County, Texas, built in 1962. It carries a Significant hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 1,290 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 Barnes Lake Dam
Barnes Lake Dam is a dam in Lavaca, Texas. It impounds the Tr-grafe Branch.
The dam stands 24 feet tall and stretches 1,290 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 278 acre-feet. Completed in 1962, 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 07/17/2008. That was over 18 years ago.
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Location
| State | Texas |
| County | Lavaca |
| River/Stream | Tr-grafe Branch |
| Coordinates | 29.40601, -96.86450 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 1,290 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 278 acre-ft |
| Max Storage | 278 acre-ft |
| Normal Storage | 137 acre-ft |
| Surface Area | 18 acres |
| Max Discharge | 4,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner Type | Not Listed |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/17/2008 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX03929 |
| Federal ID | TX03929 |
| More Info | State Dam Safety Program |