US 101 over L a Ri RR Center Mission
GoodLos Angeles County, California · 07-LA-101-0.08-LA · Structure no. 53 0405
- Built
- 1944
- 81 years old, rebuilt 1955
- Condition
- Good
- inspected April 2023
- Type
- Arch - Deck
- Concrete
- Length
- 1,651 ft
- 30 main spans
- Daily traffic
- 137,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 over L a Ri RR Center Mission is a concrete arch - deck carrying US 101 over L a Ri RR Center Mission in Los Angeles County, California. It was built in 1944 and reconstructed in 1955, so it is 81 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 137,000 vehicles a day, roughly 8% of them trucks, projected to reach 158,933 by 2043. The structure is 1,651 ft (503.2 m) long and 134 ft wide. If it were closed, the detour would be 1.2 mi (2 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 US 101 over L a Ri RR Center Mission built?
It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1955.
What condition is US 101 over L a Ri RR Center Mission 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 April 2023.
How much traffic does US 101 over L a Ri RR Center Mission carry?
About 137,000 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is US 101 over L a Ri RR Center Mission?
The structure is 1,651 ft (503.2 m) long with a longest span of 244 ft (74.4 m) and a deck 134 ft wide.
Who owns US 101 over L a Ri RR Center Mission?
It is owned by the State Highway Agency.