State Route 18 over Waterman Canyon RD
GoodSan Bernardino County, California · 08-SBD-018-R13.29 · Structure no. 54 0854
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 93 ft
- 1 main span
- Daily traffic
- 16,800
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 18 over Waterman Canyon RD is a prestressed concrete box beam or girders - multiple carrying State Route 18 over Waterman Canyon RD in San Bernardino County, California. It was built in 1969, so it is 56 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 16,800 vehicles a day, roughly 10% of them trucks, projected to reach 20,000 by 2043. The structure is 93 ft (28.3 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 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 18 over Waterman Canyon RD built?
It was built in 1969, making it 56 years old in 2025.
What condition is State Route 18 over Waterman Canyon RD 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 2024.
How much traffic does State Route 18 over Waterman Canyon RD carry?
About 16,800 vehicles per day (2017 count), of which roughly 10% are trucks.
How long is State Route 18 over Waterman Canyon RD?
The structure is 93 ft (28.3 m) long with a longest span of 91 ft (27.7 m) and a deck 62 ft wide.
Who owns State Route 18 over Waterman Canyon RD?
It is owned by the State Highway Agency.