State Route 180 over Sidehill Viaduct
GoodFresno County, California · 06-FRE-180-124.40 · Structure no. 42 0432
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 85 ft
- 2 main spans
- Daily traffic
- 730
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 180 over Sidehill Viaduct is a prestressed concrete slab carrying State Route 180 over Sidehill Viaduct in Fresno County, California. It was built in 2005, so it is 20 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 730 vehicles a day, roughly 4% of them trucks, projected to reach 1,324 by 2041. The structure is 85 ft (26 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 180 over Sidehill Viaduct built?
It was built in 2005, making it 20 years old in 2025.
What condition is State Route 180 over Sidehill Viaduct in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.
How much traffic does State Route 180 over Sidehill Viaduct carry?
About 730 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is State Route 180 over Sidehill Viaduct?
The structure is 85 ft (26 m) long with a longest span of 43 ft (13 m) and a deck 12 ft wide.
Who owns State Route 180 over Sidehill Viaduct?
It is owned by the State Highway Agency.