US Bridges

W10 Busway over Eaton Wash

Good

Los Angeles County, California · 07-LA-010S-27.84-EMTE · Structure no. 53 0656C

Built
1972
53 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
500
2014 count
Owner
State
State Highway Agency

About this bridge

W10 Busway over Eaton Wash is a prestressed concrete box beam or girders - multiple carrying W10 Busway over Eaton Wash in Los Angeles County, California. It was built in 1972, so it is 53 years old, younger 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 618 by 2040. The structure is 69 ft (21 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW10 Busway
CrossesEaton Wash
Location07-LA-010S-27.84-EMTE
RouteInterstate 10
Coordinates34.07251, -118.05561
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length69 ft (21 m)
Longest span64 ft (19.5 m)
Deck width18 ft (5.4 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2014)
Projected traffic618 by 2040
Trucks1%
Lanes on structure1
Traffic directionOne-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 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 W10 Busway over Eaton Wash built?

It was built in 1972, making it 53 years old in 2025.

What condition is W10 Busway over Eaton Wash 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 May 2023.

How much traffic does W10 Busway over Eaton Wash carry?

About 500 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is W10 Busway over Eaton Wash?

The structure is 69 ft (21 m) long with a longest span of 64 ft (19.5 m) and a deck 18 ft wide.

Who owns W10 Busway over Eaton Wash?

It is owned by the State Highway Agency.