US Bridges

Main ST over Dominguez Chan

Fair

Los Angeles County, California · 0.1MI N/O I-405 Fwy · Structure no. 53C1457

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
216 ft
3 main spans
Daily traffic
16,200
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main ST over Dominguez Chan is a prestressed concrete stringer/multi-beam or girder carrying Main ST over Dominguez Chan in Los Angeles County, California. It was built in 1961, so it is 64 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 16,200 vehicles a day, roughly 2% of them trucks, projected to reach 19,400 by 2043. The structure is 216 ft (65.8 m) long and 92 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMain ST
CrossesDominguez Chan
Location0.1MI N/O I-405 Fwy
RouteCity Street 0L043
CountyLos Angeles County
StateCalifornia
Coordinates33.8548, -118.27906
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length216 ft (65.8 m)
Longest span70 ft (21.3 m)
Deck width92 ft (28.1 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,200 (2014)
Projected traffic19,400 by 2043
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 Main ST over Dominguez Chan built?

It was built in 1961, making it 64 years old in 2025.

What condition is Main 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 May 2024.

How much traffic does Main ST over Dominguez Chan carry?

About 16,200 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Main ST over Dominguez Chan?

The structure is 216 ft (65.8 m) long with a longest span of 70 ft (21.3 m) and a deck 92 ft wide.

Who owns Main ST over Dominguez Chan?

It is owned by the City or Municipal Highway Agency.