Roaring River Road over Roaring River
Elmore County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Roaring River Road over Roaring River in Elmore County, Idaho, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1957, making it 68 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 1992).
- It is one of 25 of the 98 inventoried bridges in Elmore County rated good (25.5%); 8 (8.2%) 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 September 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.78888, -115.43852)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete stringer or multi-beam girder |
| Length | about 74 ft |
| Location | 4.5 Mi Wsw Dutch Ck Cabin |
| NBI structure number | 040201000001047 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Elmore County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 84 Ebl over Squaw Creek | 1953 | 14,250 | Fair |
| I 84 Wbl over Squaw Creek | 1960 | 14,250 | Fair |
| I 84 Ebl over Canyon Creek | 1959 | 14,250 | Good |
| I 84 Wbl over Canyon Creek | 1959 | 14,250 | Fair |
| I 84 Wbl over US 20;N.MOUNTAIN Home Ic | 1971 | 10,750 | Fair |
| I 84 Ebl over US 20;N.MOUNTAIN Home Ic | 1971 | 10,750 | Fair |
All bridges nearby: Elmore County, ID bridge conditions · every bridge in Elmore County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.