I 15 Sbl over Samaria Road Gs
Oneida County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 15 Sbl over Samaria Road Gs in Oneida 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 1975, making it 50 years old at the 2025 inventory.
- It carries about 6,250 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 1 of the 23 inventoried bridges in Oneida County rated good (4.3%); 0 (0.0%) 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 October 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 → (42.08778, -112.21906)
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 | Prestressed concrete stringer or multi-beam girder |
| Length | about 112 ft |
| Location | 6.8 S. Malad |
| NBI structure number | 000000000010975 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Oneida County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 15 Nbl over Stc 1702;WOODRUFF Rd.ic | 1975 | 6,500 | Fair |
| I 15 Sbl over Stc 1702;WOODRUFF Rd.ic | 1975 | 6,500 | Fair |
| I 15 Nbl over Samaria Road Gs | 1975 | 6,250 | Fair |
| I 15 Nbl over Two Mile Rd.gs | 1975 | 6,250 | Fair |
| I 15 Sbl over Two Mile Rd.gs | 1975 | 6,250 | Fair |
| I 15 Nbl over SH 38;MALAD City Ic | 1975 | 6,250 | Fair |
All bridges nearby: Oneida County, ID bridge conditions · every bridge in Oneida County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.