US Bridges

E Frk RD over San Gabriel Riv NF

Fair

Los Angeles County, California · 0.1MI E/O San Gbl Cyn RD · Structure no. 53C0070

Built
1949
76 years old
Condition
Fair
inspected October 2023
Type
Truss - Deck
Steel
Length
652 ft
4 main spans
Daily traffic
1,960
2017 count
Owner
County
County Highway Agency

About this bridge

E Frk RD over San Gabriel Riv NF is a steel truss - deck carrying E Frk RD over San Gabriel Riv NF in Los Angeles County, California. It was built in 1949, so it is 76 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 1,960 vehicles a day, roughly 1% of them trucks, projected to reach 2,200 by 2041. The structure is 652 ft (198.7 m) long and 38 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesE Frk RD
CrossesSan Gabriel Riv NF
Location0.1MI E/O San Gbl Cyn RD
RouteCounty Highway 0W480
Coordinates34.23904, -117.85117
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.3 US tons
Inventory rating23.3 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length652 ft (198.7 m)
Longest span160 ft (48.8 m)
Deck width38 ft (11.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,960 (2017)
Projected traffic2,200 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed24.2 mi (39 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 E Frk RD over San Gabriel Riv NF built?

It was built in 1949, making it 76 years old in 2025.

What condition is E Frk RD over San Gabriel Riv NF 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 October 2023.

How much traffic does E Frk RD over San Gabriel Riv NF carry?

About 1,960 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is E Frk RD over San Gabriel Riv NF?

The structure is 652 ft (198.7 m) long with a longest span of 160 ft (48.8 m) and a deck 38 ft wide.

Who owns E Frk RD over San Gabriel Riv NF?

It is owned by the County Highway Agency.