Mangus Lake Dam
Mangus Lake Dam is an earth dam located in Starr County, Texas, built in 1977. It carries a Significant hazard potential classification.
About Mangus Lake Dam
The primary purpose of Mangus Lake Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Fernando Pena (private). It impounds the Arroyo Morteros near Falcon Heights.
The dam stands 20 feet tall and stretches 1,500 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 284 acre-feet. Completed in 1977, the structure is 49 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 03/11/2009. That was over 17 years ago.
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Location
| State | Texas |
| County | Starr |
| Nearest City | Falcon Heights |
| River/Stream | Arroyo Morteros |
| Coordinates | 26.58000, -99.10667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,500 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 284 acre-ft |
| Max Storage | 284 acre-ft |
| Normal Storage | 173 acre-ft |
| Surface Area | 26 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | FERNANDO PENA |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 03/11/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05737 |
| Federal ID | TX05737 |
| More Info | State Dam Safety Program |