Johnston Lake Dam is an earth dam located in Navarro County, Texas, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 1,200 ft long. 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 Johnston Lake Dam
The primary purpose of Johnston 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 Laura F Johnston Et Al (private). It impounds the Tr-cummins Creek.
The dam stands 20 feet tall and stretches 1,200 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 184 acre-feet. Completed in 1956, 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 | Navarro |
| River/Stream | Tr-cummins Creek |
| Coordinates | 32.20270, -96.48221 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 184 acre-ft |
| Max Storage | 184 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 12 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Laura F Johnston Et Al |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX02573 |
| Federal ID | TX02573 |
| More Info | State Dam Safety Program |