East Fork Above Lavon Ws Scs Site 8b1 Dam is an earth dam located in Collin County, Texas, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 1,847 ft long, taller than 90% of U.S. dams with a recorded height. 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 East Fork Above Lavon Ws Scs Site 8b1 Dam
The primary purpose of East Fork Above Lavon Ws Scs Site 8b1 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Collin County;collin County Swcd (local government). It impounds the Long Branch.
The dam stands 45 feet tall and stretches 1,847 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 1,512 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1974, 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. The most recent inspection on record was 05/23/2013. That was over 13 years ago.
At 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Texas |
| County | Collin |
| River/Stream | Long Branch |
| Coordinates | 33.35255, -96.72144 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 1,847 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 1,512 acre-ft |
| Max Storage | 1,512 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 3 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Collin County;collin County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/23/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01136 |
| Federal ID | TX01136 |
| More Info | State Dam Safety Program |