US Bridges

Duarte RD over Eaton Wash

Poor

Los Angeles County, California · 0.5MI E/O Sn Gabriel Blvd · Structure no. 53C1919

Built
1989
36 years old
Condition
Poor
inspected July 2023
Type
Tee Beam
Concrete
Length
46 ft
1 main span
Daily traffic
12,063
2017 count
Owner
County
County Highway Agency

About this bridge

Duarte RD over Eaton Wash is a concrete tee beam carrying Duarte RD over Eaton Wash in Los Angeles County, California. It was built in 1989, so it is 36 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 12,063 vehicles a day, roughly 2% of them trucks, projected to reach 13,872 by 2041. The structure is 46 ft (14 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDuarte RD
CrossesEaton Wash
Location0.5MI E/O Sn Gabriel Blvd
RouteCounty Highway 0L517
CountyLos Angeles County
StateCalifornia
Coordinates34.12096, -118.08171
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,063 (2017)
Projected traffic13,872 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Duarte RD over Eaton Wash built?

It was built in 1989, making it 36 years old in 2025.

What condition is Duarte RD over Eaton Wash in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Duarte RD over Eaton Wash carry?

About 12,063 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Duarte RD over Eaton Wash?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 52 ft wide.

Who owns Duarte RD over Eaton Wash?

It is owned by the County Highway Agency.