Lake Bonanza Dam
Lake Bonanza Dam is an earth dam located in Montgomery County, Texas, built in 1963. It carries a Significant hazard potential classification and has a unsatisfactory condition assessment.
About Lake Bonanza Dam
The primary purpose of Lake Bonanza Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Bonanza Property Owners Association Inc (private). It impounds the Tr-mound Creek.
The dam stands 26 feet tall and stretches 1,040 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 198 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. An emergency action plan is in place for this dam. The most recent inspection on record was 02/09/2022.
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Location
| State | Texas |
| County | Montgomery |
| River/Stream | Tr-mound Creek |
| Coordinates | 30.32949, -95.62100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 198 acre-ft |
| Max Storage | 198 acre-ft |
| Normal Storage | 116 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 3 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | LAKE BONANZA PROPERTY OWNERS ASSOCIATION INC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 02/09/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX00100 |
| Federal ID | TX00100 |
| More Info | State Dam Safety Program |