Lynchburg Reservoir Dam
Lynchburg Reservoir Dam is an earth dam located in Harris County, Texas, built in 1976. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lynchburg Reservoir Dam
Lynchburg Reservoir Dam is a dam in Harris, Texas. The dam is owned by Coastal Water Authority (local government). It impounds the Off Ch-san Jacinto River near Lynchburg (four Corners).
The dam stands 35 feet tall and stretches 15,315 feet across, creates a reservoir covering 200 acres, has a maximum storage capacity of 5,188 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/11/2023.
At 35 feet, this dam is taller than 82% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Harris |
| Nearest City | Lynchburg (four Corners) |
| River/Stream | Off Ch-san Jacinto River |
| Coordinates | 29.76697, -95.07441 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 15,315 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 5,188 acre-ft |
| Max Storage | 5,188 acre-ft |
| Normal Storage | 4,700 acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Owner | COASTAL WATER AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/11/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX03413 |
| Federal ID | TX03413 |
| More Info | State Dam Safety Program |