US Bridges

Azusa Ave over Walnut Crk

Good

Los Angeles County, California · 0.2MI N/O Cameron Ave · Structure no. 53C0449

Built
1967
58 years old
Condition
Good
inspected November 2021
Type
Tee Beam
Concrete
Length
53 ft
1 main span
Daily traffic
42,405
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Azusa Ave over Walnut Crk is a concrete tee beam carrying Azusa Ave over Walnut Crk in Los Angeles County, California. It was built in 1967, so it is 58 years old, older 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 42,405 vehicles a day, roughly 10% of them trucks, projected to reach 50,886 by 2042. The structure is 53 ft (16.2 m) long and 95 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesAzusa Ave
CrossesWalnut Crk
Location0.2MI N/O Cameron Ave
RouteCity Street 0L379
Coordinates34.06542, -117.90766
Functional classUrban Other Principal Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span49 ft (14.9 m)
Deck width95 ft (29 m)
Roadway width77 ft (23.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic42,405 (2018)
Projected traffic50,886 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Azusa Ave over Walnut Crk built?

It was built in 1967, making it 58 years old in 2025.

What condition is Azusa Ave over Walnut Crk 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 November 2021.

How much traffic does Azusa Ave over Walnut Crk carry?

About 42,405 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Azusa Ave over Walnut Crk?

The structure is 53 ft (16.2 m) long with a longest span of 49 ft (14.9 m) and a deck 95 ft wide.

Who owns Azusa Ave over Walnut Crk?

It is owned by the City or Municipal Highway Agency.