US Bridges

Azusa LN over Little Dalton Wash

Fair

Los Angeles County, California · 0.1MI E/O Azusa Ave · Structure no. 53C1030

Built
1960
65 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
153
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Azusa LN over Little Dalton Wash is a concrete slab carrying Azusa LN over Little Dalton Wash in Los Angeles County, California. It was built in 1960, so it is 65 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 153 vehicles a day, roughly 2% of them trucks, projected to reach 153 by 2044. The structure is 30 ft (9.1 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesAzusa LN
CrossesLittle Dalton Wash
Location0.1MI E/O Azusa Ave
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.11842, -117.90662
Functional classUrban Local

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 inspectionApril 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.7 m)
Deck width17 ft (5.2 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic153 (2014)
Projected traffic153 by 2044
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 LN over Little Dalton Wash built?

It was built in 1960, making it 65 years old in 2025.

What condition is Azusa LN over Little Dalton 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 April 2024.

How much traffic does Azusa LN over Little Dalton Wash carry?

About 153 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Azusa LN over Little Dalton Wash?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.7 m) and a deck 17 ft wide.

Who owns Azusa LN over Little Dalton Wash?

It is owned by the City or Municipal Highway Agency.