Island Road over Little Tule River
Shasta County, California · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Island Road over Little Tule River in Shasta County, California, 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 1950, making it 75 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2014).
- Its listed owner is the county highway agency.
- It is one of 11 of the 493 inventoried bridges in Shasta County rated poor (2.2%); 11 (2.2%) 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 → (41.10938, -121.49193)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 41 ft |
| Location | 2.3 Mi N of Arthur Rd |
| NBI structure number | 06C0281 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Shasta County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 5 NB over Balls Ferry Rd | 1966 | 78,000 | Good |
| Interstate Route 5 over UPRR Railroad Tracks | 2022 | 55,000 | Fair |
| Interstate Route 5 over Anderson Creek | 2022 | 55,000 | Good |
| Interstate 5 over Boulder Creek | 1965 | 53,000 | Fair |
| Interstate 5 over Sacramento River | 2003 | 51,000 | Good |
| State Route 44 over Sacramento River | 2010 | 51,000 | Good |
All bridges nearby: Shasta County, CA bridge conditions · every bridge in Shasta County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.