County Rd 539 over Alder CR (old US 30
Baker County, Oregon · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 539 over Alder CR (old US 30 in Baker County, Oregon, 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 1929, making it 96 years old at the 2025 inventory.
- It carries about 426 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 55 of the 188 inventoried bridges in Baker County rated good (29.3%); 9 (4.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (deck 6 to 7, superstructure 6 to 7, substructure 6 to 7).
- Its most recent inspection on record is dated October 2024, 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 → (44.60304, -117.48492)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 7 | Good condition |
| Superstructure | 6 | 7 | Good condition |
| Substructure | 6 | 7 | Good condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 44 ft |
| Location | 025 Mi E Oxman Oxing I-84 |
| NBI structure number | 01409 B52200272 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| 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 Oregon department of transportation.
Busiest bridges in Baker County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-84 (hwy 006) over Burnt River(dixie CR) | 1971 | 11,968 | Fair |
| I-84 (hwy 006) over Burnt River (RR Tunnel) | 1971 | 11,958 | Good |
| I-84 (hwy 006) over Burnt River(chimney CR) | 1971 | 11,958 | Fair |
| I-84 (hwy 006) over Burnt River(jordan CR) | 1971 | 11,958 | Fair |
| I-84 (hwy 006) over Lookout Mt I/c | 1971 | 11,958 | Good |
| I-84 (hwy 006) over Burnt River(jett CR) | 1971 | 11,932 | Fair |
All bridges nearby: Baker County, OR bridge conditions · every bridge in Baker County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.