Oak DR over Old Topanga Crk
PoorLos Angeles County, California · 0.1MI N/O Old Topanga RD · Structure no. 53C0968
- Built
- 1928
- 97 years old, rebuilt 1967
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 23 ft
- 1 main span
- Daily traffic
- 870
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Oak DR over Old Topanga Crk is a wood or timber stringer/multi-beam or girder carrying Oak DR over Old Topanga Crk in Los Angeles County, California. It was built in 1928 and reconstructed in 1967, so it is 97 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 870 vehicles a day, roughly 1% of them trucks, projected to reach 1,040 by 2043. The structure is 23 ft (6.9 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Oak DR over Old Topanga Crk built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1967.
What condition is Oak DR over Old Topanga Crk in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does Oak DR over Old Topanga Crk carry?
About 870 vehicles per day (2014 count), of which roughly 1% are trucks.
How long is Oak DR over Old Topanga Crk?
The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.4 m) and a deck 29 ft wide.
Who owns Oak DR over Old Topanga Crk?
It is owned by the County Highway Agency.