300 N Road over S Canal
Jerome County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 300 N Road over S Canal in Jerome County, Idaho, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2017, making it 8 years old at the 2025 inventory.
- It carries about 190 vehicles a day (traffic count year 2023).
- It is one of 20 of the 111 inventoried bridges in Jerome County rated good (18.0%); 10 (9.0%) are rated poor.
- 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 → (42.7675, -114.50478)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 52 ft |
| Location | 3 N. 0.7 E. Jerome |
| NBI structure number | 000000000024748 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Jerome County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 84 over N Canal | 1966 | 24,500 | Fair |
| I 84 over C Canal | 1966 | 23,000 | Fair |
| SH 79 over I 84 Eb-wb;s.jerome Ic | 1966 | 15,000 | Fair |
| I 84 Ebl over 400 South Rd Gs 2 | 2024 | 14,500 | Good |
| I 84 Wbl over 400 South Rd Gs 2 | 2024 | 14,500 | Good |
| I 84 Ebl over US 93;W. Twin Falls Ic | 2013 | 14,500 | Fair |
All bridges nearby: Jerome County, ID bridge conditions · every bridge in Jerome County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.