Markridge RD over Shields Cyn Chan
GoodLos Angeles County, California · 1.0MI N/O Foothill Blvd · Structure no. 53C1449
- Built
- 1937
- 88 years old, rebuilt 1963
- Condition
- Good
- inspected August 2021
- Type
- Culvert
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 703
- 2012 count
- Owner
- County
- County Highway Agency
About this bridge
Markridge RD over Shields Cyn Chan is a concrete culvert carrying Markridge RD over Shields Cyn Chan in Los Angeles County, California. It was built in 1937 and reconstructed in 1963, so it is 88 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 703 vehicles a day, projected to reach 773 by 2041. The structure is 31 ft (9.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 9 Excellent | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Markridge RD over Shields Cyn Chan built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1963.
What condition is Markridge RD over Shields Cyn Chan 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 August 2021.
How much traffic does Markridge RD over Shields Cyn Chan carry?
About 703 vehicles per day (2012 count).
How long is Markridge RD over Shields Cyn Chan?
The structure is 31 ft (9.5 m) long with a longest span of 27 ft (8.2 m) and a deck 34 ft wide.
Who owns Markridge RD over Shields Cyn Chan?
It is owned by the County Highway Agency.