US Bridges

Carson ST over Dominguez Chan

Fair

Los Angeles County, California · 0.1MI E/O I-405 Fwy · Structure no. 53C0645

Built
1959
66 years old, rebuilt 1970
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
258 ft
4 main spans
Daily traffic
15,600
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carson ST over Dominguez Chan is a prestressed concrete stringer/multi-beam or girder carrying Carson ST over Dominguez Chan in Los Angeles County, California. It was built in 1959 and reconstructed in 1970, so it is 66 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 5 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 15,600 vehicles a day, roughly 4% of them trucks, projected to reach 18,700 by 2044. The structure is 258 ft (78.6 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCarson ST
CrossesDominguez Chan
Location0.1MI E/O I-405 Fwy
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates33.83158, -118.25452
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length258 ft (78.6 m)
Longest span63 ft (19.2 m)
Deck width96 ft (29.4 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,600 (2014)
Projected traffic18,700 by 2044
Trucks4%
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 Carson ST over Dominguez Chan built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1970.

What condition is Carson ST over Dominguez Chan 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 June 2024.

How much traffic does Carson ST over Dominguez Chan carry?

About 15,600 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is Carson ST over Dominguez Chan?

The structure is 258 ft (78.6 m) long with a longest span of 63 ft (19.2 m) and a deck 96 ft wide.

Who owns Carson ST over Dominguez Chan?

It is owned by the City or Municipal Highway Agency.