County Rd 18 over Long Creek
Grant County, Oregon · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 18 over Long Creek in Grant County, Oregon, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1974, making it 51 years old at the 2025 inventory.
- It carries about 21 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 6 of the 145 inventoried bridges in Grant County rated poor (4.1%); 6 (4.1%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.68097, -118.98448)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 24 ft |
| Location | 6.0 Mi E Jct US 395 |
| NBI structure number | 23C182018 00600 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Grant County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 26 (hwy 005) over Canyon Creek (john Day) | 2002 | 6,551 | Good |
| US 26 (hwy 005) over John Day River (coles) | 2010 | 2,849 | Good |
| US 26 (hwy 005) over Beech Cr(mt Vernon) | 1956 | 2,836 | Fair |
| US 26 (hwy 005) over Dixie Crk (prairie City) | 1939 | 2,104 | Fair |
| US 26 (hwy 005) over Indian Creek | 1939 | 1,893 | Fair |
| US 26 (hwy 005) over John Day R(prairie City) | 1939 | 1,893 | Fair |
All bridges nearby: Grant County, OR bridge conditions · every bridge in Grant County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.