US Bridges

Duarte RD over Sawpit Wash

Fair

Los Angeles County, California · 0.2MI W/O Mountain Ave · Structure no. 53C0501

Built
1952
73 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
52 ft
1 main span
Daily traffic
8,998
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Duarte RD over Sawpit Wash is a concrete slab carrying Duarte RD over Sawpit Wash in Los Angeles County, California. It was built in 1952, so it is 73 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 8,998 vehicles a day, roughly 1% of them trucks, projected to reach 10,348 by 2041. The structure is 52 ft (15.8 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesDuarte RD
CrossesSawpit Wash
Location0.2MI W/O Mountain Ave
RouteCity Street 0L517
CountyLos Angeles County
StateCalifornia
Coordinates34.13218, -117.98937
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span44 ft (13.4 m)
Deck width58 ft (17.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,998 (2017)
Projected traffic10,348 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 Duarte RD over Sawpit Wash built?

It was built in 1952, making it 73 years old in 2025.

What condition is Duarte RD over Sawpit 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 Duarte RD over Sawpit Wash carry?

About 8,998 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Duarte RD over Sawpit Wash?

The structure is 52 ft (15.8 m) long with a longest span of 44 ft (13.4 m) and a deck 58 ft wide.

Who owns Duarte RD over Sawpit Wash?

It is owned by the City or Municipal Highway Agency.