Vaquillas Lake No 1 Dam is an earth dam located in Webb County, Texas, built in 1967. It carries a Significant hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 1,815 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 Vaquillas Lake No 1 Dam
The primary purpose of Vaquillas Lake No 1 Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Vaquillas Ranch Company Ltd (private). It impounds the Tr-reiser Creek.
The dam stands 20 feet tall and stretches 1,815 feet across, creates a reservoir covering 29 acres, and has a maximum storage capacity of 336 acre-feet. Completed in 1967, 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. The most recent inspection on record was 02/10/2010. That was over 16 years ago.
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Location
| State | Texas |
| County | Webb |
| River/Stream | Tr-reiser Creek |
| Coordinates | 27.53548, -99.05562 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,815 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 336 acre-ft |
| Max Storage | 336 acre-ft |
| Normal Storage | 186 acre-ft |
| Surface Area | 29 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Vaquillas Ranch Company Ltd |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 02/10/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX02265 |
| Federal ID | TX02265 |
| More Info | State Dam Safety Program |