State Route 18 over Metcalf Creek
GoodSan Bernardino County, California · 08-SBD-018-47.17 · Structure no. 54 0266
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected December 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 8,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 18 over Metcalf Creek is a concrete continuous culvert carrying State Route 18 over Metcalf Creek in San Bernardino County, California. It was built in 1991, so it is 34 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 8,000 vehicles a day, roughly 13% of them trucks, projected to reach 11,000 by 2042. The structure is 25 ft (7.6 m) long and 74 ft wide. If it were closed, the detour would be 14.9 mi (24 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 18 over Metcalf Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is State Route 18 over Metcalf Creek 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 December 2024.
How much traffic does State Route 18 over Metcalf Creek carry?
About 8,000 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is State Route 18 over Metcalf Creek?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 74 ft wide.
Who owns State Route 18 over Metcalf Creek?
It is owned by the State Highway Agency.