US Bridges

Roscoe Blvd over Chatsworth Creek

Fair

Los Angeles County, California · 0.2 M E/O Woodlake Ave · Structure no. 53C1302

Built
1927
98 years old, rebuilt 1962
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
14,036
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Roscoe Blvd over Chatsworth Creek is a concrete continuous culvert carrying Roscoe Blvd over Chatsworth Creek in Los Angeles County, California. It was built in 1927 and reconstructed in 1962, so it is 98 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 14,036 vehicles a day, roughly 2% of them trucks, projected to reach 31,430 by 2042. The structure is 23 ft (7 m) long and 99 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRoscoe Blvd
CrossesChatsworth Creek
Location0.2 M E/O Woodlake Ave
RouteCity Street 0
Coordinates34.21919, -118.62876
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width99 ft (30.1 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,036 (2016)
Projected traffic31,430 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Roscoe Blvd over Chatsworth Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1962.

What condition is Roscoe Blvd over Chatsworth Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Roscoe Blvd over Chatsworth Creek carry?

About 14,036 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Roscoe Blvd over Chatsworth Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 99 ft wide.

Who owns Roscoe Blvd over Chatsworth Creek?

It is owned by the City or Municipal Highway Agency.