US Bridges

Atwood Blvd over Santa Clra Riv Sf

Good

Los Angeles County, California · 0.4MI S/O Lyons Ave · Structure no. 53C2165

Built
1989
36 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
33 ft
1 main span
Daily traffic
38,745
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Atwood Blvd over Santa Clra Riv Sf is a concrete culvert carrying Atwood Blvd over Santa Clra Riv Sf in Los Angeles County, California. It was built in 1989, so it is 36 years old, younger 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 38,745 vehicles a day, roughly 2% of them trucks, projected to reach 46,494 by 2042. The structure is 33 ft (10 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesAtwood Blvd
CrossesSanta Clra Riv Sf
Location0.4MI S/O Lyons Ave
RouteCity Street 0
Coordinates34.37418, -118.55367
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length33 ft (10 m)
Longest span30 ft (9.2 m)
Deck width55 ft (16.8 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,745 (2016)
Projected traffic46,494 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 Atwood Blvd over Santa Clra Riv Sf built?

It was built in 1989, making it 36 years old in 2025.

What condition is Atwood Blvd over Santa Clra Riv Sf 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 Atwood Blvd over Santa Clra Riv Sf carry?

About 38,745 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Atwood Blvd over Santa Clra Riv Sf?

The structure is 33 ft (10 m) long with a longest span of 30 ft (9.2 m) and a deck 55 ft wide.

Who owns Atwood Blvd over Santa Clra Riv Sf?

It is owned by the City or Municipal Highway Agency.