State Route 273 over A.c.i.d. Canal
Shasta County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- State Route 273 over A.c.i.d. Canal in Shasta County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1942 and reconstructed in 1995, making it 83 years old at the 2025 inventory.
- It carries about 23,000 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 233 of the 493 inventoried bridges in Shasta County rated fair (47.3%); 11 (2.2%) are rated poor.
- 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 → (40.5383, -122.38503)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 80 ft |
| Location | 02-sha-273-13.31-rdg |
| NBI structure number | 06 0010 |
| Condition class | Fair |
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.