Lower Diversion
Lower Diversion is a gravity dam located in Bonneville County, Idaho, built in 1982. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lower Diversion
The primary purpose of Lower Diversion is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by City Of Idaho Falls (local government). It impounds the Snake River near Shelley, Id.
The dam stands 14 feet tall and stretches 1,380 feet across, creates a reservoir covering 100 acres, has a maximum storage capacity of 1,200 acre-feet, and collects water from a drainage area of 9,800 square miles. Completed in 1982, the structure is 44 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/28/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Idaho |
| County | Bonneville |
| Nearest City | Shelley, Id |
| River/Stream | Snake River |
| Coordinates | 43.46910, -112.06189 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 1,380 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
| Normal Storage | 800 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 9,800 sq mi |
| Max Discharge | 75,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | City of Idaho Falls |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/28/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00340 |
| Federal ID | ID00340 |
| More Info | State Dam Safety Program |