State Route 88 over West Fork Carson River
Alpine County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- State Route 88 over West Fork Carson River in Alpine County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1952, making it 73 years old at the 2025 inventory.
- It carries about 3,225 vehicles a day (traffic count year 2009).
- Its listed owner is the state highway agency.
- It is one of 21 of the 33 inventoried bridges in Alpine County rated fair (63.6%); 2 (6.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 5 to 6.
- Its most recent inspection on record is dated October 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 → (38.77609, -119.89544)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 65 ft |
| Location | 10-alp-088-14.70 |
| NBI structure number | 31 0022 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Alpine County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Old State Route 88 over West Fork Carson River | 1939 | 3,200 | Fair |
| State Route 89 over West Fork Carson River | 1960 | 3,200 | Fair |
| State Route 88 over West Fork Carson River | 1963 | 3,200 | Good |
| State Route 88 over West Fork Carson River | 1963 | 3,200 | Good |
| State Route 89 over Wildlife Access | 1980 | 3,050 | Good |
| State Route 88 over Caples Lake Spillway | 1987 | 2,800 | Fair |
All bridges nearby: Alpine County, CA bridge conditions · every bridge in Alpine County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.