Mewis Lake Dam is an earth dam located in Austin County, Texas, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 14 ft14 ft tall and 650 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 Mewis Lake Dam
The primary purpose of Mewis Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Monroe Mewis (private). It impounds the Long Branch.
The dam stands 14 feet tall and stretches 650 feet across, creates a reservoir covering 17 acres, and has a maximum storage capacity of 157 acre-feet. Completed in 1963, 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 | Austin |
| River/Stream | Long Branch |
| Coordinates | 29.99187, -96.29619 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 650 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 157 acre-ft |
| Max Storage | 157 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 17 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Monroe Mewis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01397 |
| Federal ID | TX01397 |
| More Info | State Dam Safety Program |