US Bridges

E10-S Etiwanda Off over Etiwanda Wash

Fair

San Bernardino County, California · 08-SBD-010-10.99-ONT · Structure no. 54 0378S

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Frame
Concrete
Length
39 ft
1 main span
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

E10-S Etiwanda Off over Etiwanda Wash is a concrete frame carrying E10-S Etiwanda Off over Etiwanda Wash in San Bernardino County, California. It was built in 1966, so it is 59 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 12,000 vehicles a day, roughly 36% of them trucks, projected to reach 18,000 by 2045. The structure is 39 ft (11.9 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesE10-S Etiwanda Off
CrossesEtiwanda Wash
Location08-SBD-010-10.99-ONT
RouteInterstate 10
CountySan Bernardino County
StateCalifornia
Coordinates34.06699, -117.52671
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic18,000 by 2045
Trucks36%
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 E10-S Etiwanda Off over Etiwanda Wash built?

It was built in 1966, making it 59 years old in 2025.

What condition is E10-S Etiwanda Off over Etiwanda Wash 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 2023.

How much traffic does E10-S Etiwanda Off over Etiwanda Wash carry?

About 12,000 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is E10-S Etiwanda Off over Etiwanda Wash?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 26 ft wide.

Who owns E10-S Etiwanda Off over Etiwanda Wash?

It is owned by the State Highway Agency.