US Bridges

Chatsworth ST over Bull Creek

Fair

Los Angeles County, California · Swinton Ave/Gothic Ave · Structure no. 53C1136

Built
1956
69 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
61 ft
2 main spans
Daily traffic
13,000
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chatsworth ST over Bull Creek is a concrete continuous slab carrying Chatsworth ST over Bull Creek in Los Angeles County, California. It was built in 1956, so it is 69 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 13,000 vehicles a day, roughly 1% of them trucks, projected to reach 18,984 by 2042. The structure is 61 ft (18.6 m) long and 62 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesChatsworth ST
CrossesBull Creek
LocationSwinton Ave/Gothic Ave
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.26462, -118.48855
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9 m)
Deck width62 ft (18.8 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2020)
Projected traffic18,984 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Chatsworth ST over Bull Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Chatsworth ST over Bull 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 Chatsworth ST over Bull Creek carry?

About 13,000 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Chatsworth ST over Bull Creek?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9 m) and a deck 62 ft wide.

Who owns Chatsworth ST over Bull Creek?

It is owned by the City or Municipal Highway Agency.