US Bridges

Parthenia ST over Bull Creek

Good

Los Angeles County, California · Hayvenhrst Av-Petit Av · Structure no. 53C1276

Built
1955
70 years old, rebuilt 1971
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
27,400
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Parthenia ST over Bull Creek is a concrete continuous slab carrying Parthenia ST over Bull Creek in Los Angeles County, California. It was built in 1955 and reconstructed in 1971, so it is 70 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 27,400 vehicles a day, roughly 2% of them trucks, projected to reach 57,717 by 2044. The structure is 60 ft (18.3 m) long and 81 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesParthenia ST
CrossesBull Creek
LocationHayvenhrst Av-Petit Av
RouteCity Street 0
Coordinates34.22837, -118.49709
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span29 ft (8.8 m)
Deck width81 ft (24.6 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,400 (2017)
Projected traffic57,717 by 2044
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Parthenia ST over Bull Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1971.

What condition is Parthenia ST over Bull Creek 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 October 2022.

How much traffic does Parthenia ST over Bull Creek carry?

About 27,400 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Parthenia ST over Bull Creek?

The structure is 60 ft (18.3 m) long with a longest span of 29 ft (8.8 m) and a deck 81 ft wide.

Who owns Parthenia ST over Bull Creek?

It is owned by the City or Municipal Highway Agency.