Interstate 505 SB over Horse Creek
FairSolano County, California · 04-SOL-505-R0.21-VAC · Structure no. 23 0077L
- Built
- 1946
- 79 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 16,750
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 505 SB over Horse Creek is a concrete slab carrying Interstate 505 SB over Horse Creek in Solano County, California. It was built in 1946, so it is 79 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 16,750 vehicles a day, roughly 10% of them trucks, projected to reach 25,619 by 2046. The structure is 27 ft (8.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 505 SB over Horse Creek built?
It was built in 1946, making it 79 years old in 2025.
What condition is Interstate 505 SB over Horse Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does Interstate 505 SB over Horse Creek carry?
About 16,750 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is Interstate 505 SB over Horse Creek?
The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 43 ft wide.
Who owns Interstate 505 SB over Horse Creek?
It is owned by the State Highway Agency.