Lttl Weiser Rvr Rd over Little Weiser River
Adams County, Idaho · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Lttl Weiser Rvr Rd over Little Weiser River in Adams County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1953, making it 72 years old at the 2025 inventory.
- It carries about 30 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 52 of the 87 inventoried bridges in Adams County rated fair (59.8%); 8 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (44.48953, -116.39094)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 71 ft |
| Location | 4.7S 2.2E Indian Valley |
| NBI structure number | 000000000026550 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Adams County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 95 over Little Salmon River | 2021 | 3,300 | Good |
| US 95 over W.fk.goose Creek | 1978 | 3,300 | Fair |
| US 95 over E.fk.goose Creek | 1978 | 3,300 | Fair |
| US 95 over Little Salmon River | 2019 | 3,100 | Good |
| US 95 over M.fk.weiser River | 1974 | 2,900 | Fair |
| US 95 over Cottonwood Creek | 2017 | 2,900 | Good |
All bridges nearby: Adams County, ID bridge conditions · every bridge in Adams County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.