Tom J
Tom J is an earth dam located in Valley County, Idaho, built in 1995. It carries a Significant hazard potential classification and has a fair condition assessment.
About Tom J
The primary purpose of Tom J is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is private-owned. It impounds the Beaver Creek North Fork Payette River near Payette River.
The dam stands 57 feet tall and stretches 800 feet across, creates a reservoir covering 122 acres, has a storage capacity of 2,960 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1995, the structure is 31 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/15/2017.
At 57 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Idaho |
| County | Valley |
| Nearest City | Payette River |
| River/Stream | Beaver Creek North Fork Payette River |
| Coordinates | 44.54961, -115.99998 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 57 ft |
| Dam Height | 57 ft |
| Dam Length | 800 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 2,960 acre-ft |
| Normal Storage | 2,960 acre-ft |
| Surface Area | 122 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/15/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ID00329 |
| Federal ID | ID00329 |
| More Info | State Dam Safety Program |