Tonn Lake Dam
Tonn Lake Dam is an earth dam located in Washington County, Texas, built in 1965. It carries a Low hazard potential classification.
About Tonn Lake Dam
The primary purpose of Tonn Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by William Tonn (private). It impounds the Tr-little Sandy Creek.
The dam stands 22 feet tall and stretches 450 feet across, and has a maximum storage capacity of 84 acre-feet. Completed in 1965, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Washington |
| River/Stream | Tr-little Sandy Creek |
| Coordinates | 30.10150, -96.49494 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 21 ft |
| Dam Length | 450 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 84 acre-ft |
| Max Storage | 84 acre-ft |
| Normal Storage | 60 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WILLIAM TONN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX00063 |
| Federal ID | TX00063 |
| More Info | State Dam Safety Program |