US Bridges

Shoup Ave over Santa Susana Creek

Good

Los Angeles County, California · 0.64 KM S/O Lassen ST · Structure no. 53C1326

Built
1967
58 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
42 ft
1 main span
Daily traffic
463
2016 count
Owner
Local
Other Local Agency

About this bridge

Shoup Ave over Santa Susana Creek is a concrete culvert carrying Shoup Ave over Santa Susana Creek in Los Angeles County, California. It was built in 1967, so it is 58 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 463 vehicles a day, roughly 1% of them trucks, projected to reach 721 by 2042. The structure is 42 ft (12.8 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesShoup Ave
CrossesSanta Susana Creek
Location0.64 KM S/O Lassen ST
RouteCity Street 0
Coordinates34.2481, -118.6147
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span38 ft (11.6 m)
Deck width62 ft (18.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic463 (2016)
Projected traffic721 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerOther Local 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 Shoup Ave over Santa Susana Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Shoup Ave over Santa Susana 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 2024.

How much traffic does Shoup Ave over Santa Susana Creek carry?

About 463 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Shoup Ave over Santa Susana Creek?

The structure is 42 ft (12.8 m) long with a longest span of 38 ft (11.6 m) and a deck 62 ft wide.

Who owns Shoup Ave over Santa Susana Creek?

It is owned by the Other Local Agency and maintained by the City or Municipal Highway Agency.