State Highway 173 over Cedar Springs Spillway
GoodSan Bernardino County, California · 08-SBD-173-L1.92 · Structure no. 54 0874
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 330 ft
- 3 main spans
- Daily traffic
- 1,200
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Highway 173 over Cedar Springs Spillway is a concrete continuous box beam or girders - multiple carrying State Highway 173 over Cedar Springs Spillway in San Bernardino County, California. It was built in 1970, so it is 55 years old, older 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 1,200 vehicles a day, roughly 4% of them trucks, projected to reach 1,500 by 2044. The structure is 330 ft (100.6 m) long and 39 ft wide. If it were closed, the detour would be 27.3 mi (44 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Highway 173 over Cedar Springs Spillway built?
It was built in 1970, making it 55 years old in 2025.
What condition is State Highway 173 over Cedar Springs Spillway 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 September 2024.
How much traffic does State Highway 173 over Cedar Springs Spillway carry?
About 1,200 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is State Highway 173 over Cedar Springs Spillway?
The structure is 330 ft (100.6 m) long with a longest span of 130 ft (39.6 m) and a deck 39 ft wide.
Who owns State Highway 173 over Cedar Springs Spillway?
It is owned by the State Highway Agency.