US Bridges

Sepulveda Blvd over Dominguez Chan

Fair

Los Angeles County, California · 0.5MI E/O Alameda ST · Structure no. 53C0652

Built
1959
66 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
4 main spans
Daily traffic
18,900
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sepulveda Blvd over Dominguez Chan is a prestressed concrete stringer/multi-beam or girder carrying Sepulveda Blvd over Dominguez Chan in Los Angeles County, California. It was built in 1959, 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 18,900 vehicles a day, roughly 10% of them trucks, projected to reach 22,700 by 2044. The structure is 242 ft (73.8 m) long and 62 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSepulveda Blvd
CrossesDominguez Chan
Location0.5MI E/O Alameda ST
RouteCity Street 0L030
CountyLos Angeles County
StateCalifornia
Coordinates33.80612, -118.22824
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.
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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span60 ft (18.3 m)
Deck width62 ft (19 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,900 (2014)
Projected traffic22,700 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Sepulveda Blvd over Dominguez Chan built?

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

What condition is Sepulveda Blvd 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 Sepulveda Blvd over Dominguez Chan carry?

About 18,900 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Sepulveda Blvd over Dominguez Chan?

The structure is 242 ft (73.8 m) long with a longest span of 60 ft (18.3 m) and a deck 62 ft wide.

Who owns Sepulveda Blvd over Dominguez Chan?

It is owned by the City or Municipal Highway Agency.