US Bridges

Amelia Ave over San Dimas Wash

Fair

Los Angeles County, California · 0.1MI N/O Foothill Ave · Structure no. 53C0709

Built
1962
63 years old, rebuilt 1991
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
7,262
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Amelia Ave over San Dimas Wash is a concrete slab carrying Amelia Ave over San Dimas Wash in Los Angeles County, California. It was built in 1962 and reconstructed in 1991, so it is 63 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 6 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 7,262 vehicles a day, roughly 2% of them trucks, projected to reach 8,352 by 2045. The structure is 22 ft (6.8 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAmelia Ave
CrossesSan Dimas Wash
Location0.1MI N/O Foothill Ave
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.12132, -117.82009
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span22 ft (6.7 m)
Deck width78 ft (23.8 m)
Roadway width64 ft (19.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,262 (2015)
Projected traffic8,352 by 2045
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Amelia Ave over San Dimas Wash built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1991.

What condition is Amelia Ave over San Dimas 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 January 2025.

How much traffic does Amelia Ave over San Dimas Wash carry?

About 7,262 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Amelia Ave over San Dimas Wash?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.7 m) and a deck 78 ft wide.

Who owns Amelia Ave over San Dimas Wash?

It is owned by the City or Municipal Highway Agency.