US101(HWY009)NB over NB Shinglehouse Slough
Coos County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US101(HWY009)NB over NB Shinglehouse Slough in Coos County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1990, making it 35 years old at the 2025 inventory.
- It carries about 9,357 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 160 of the 255 inventoried bridges in Coos County rated fair (62.7%); 8 (3.1%) 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 May 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (43.32586, -124.2057)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 137 ft |
| Location | 02.3 Mi S Hwy 241 Jct |
| NBI structure number | 06514A009 24181 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 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 Oregon department of transportation.
Busiest bridges in Coos County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US101(HWY009) over Coalbank Slough | 1987 | 31,461 | Fair |
| US101(HWY009) over Coos Bay (mccullough Br) | 1936 | 19,023 | Fair |
| US101(HWY009) over Cbrl | 1935 | 19,023 | Fair |
| Hwy 240 over Pony Creek | 1983 | 18,158 | Fair |
| US101(HWY009) over Coos Bay (mccullough Br) | 1936 | 17,390 | Fair |
| US101(HWY009) over Coos Bay (mccullough Br) | 1936 | 17,390 | Fair |
All bridges nearby: Coos County, OR bridge conditions · every bridge in Coos County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.