US Bridges

RTE 105 Ramps over Dominguez Channel

Fair

Los Angeles County, California · 07-LA-105-R4.59-HAW · Structure no. 53 2531M

Built
1988
37 years old
Condition
Fair
inspected May 2022
Type
Culvert
Concrete
Length
61 ft
4 main spans
Daily traffic
18,054
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 105 Ramps over Dominguez Channel is a concrete culvert carrying RTE 105 Ramps over Dominguez Channel in Los Angeles County, California. It was built in 1988, so it is 37 years old, younger 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 6 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 18,054 vehicles a day, roughly 5% of them trucks, projected to reach 19,973 by 2042. The structure is 61 ft (18.6 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRTE 105 Ramps
CrossesDominguez Channel
Location07-LA-105-R4.59-HAW
RouteInterstate 105
CountyLos Angeles County
StateCalifornia
Coordinates33.9241, -118.3305
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span14 ft (4.4 m)
Deck width88 ft (26.8 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,054 (2016)
Projected traffic19,973 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 105 Ramps over Dominguez Channel built?

It was built in 1988, making it 37 years old in 2025.

What condition is RTE 105 Ramps over Dominguez Channel 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 2022.

How much traffic does RTE 105 Ramps over Dominguez Channel carry?

About 18,054 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is RTE 105 Ramps over Dominguez Channel?

The structure is 61 ft (18.6 m) long with a longest span of 14 ft (4.4 m) and a deck 88 ft wide.

Who owns RTE 105 Ramps over Dominguez Channel?

It is owned by the State Highway Agency.