US Bridges

I 5 SB over Smokey Bear Road

Fair

Los Angeles County, California · 07-LA-005-R77.96 · Structure no. 53 1805L

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
187 ft
2 main spans
Daily traffic
35,890
2018 count
Owner
State
State Highway Agency

About this bridge

I 5 SB over Smokey Bear Road is a concrete continuous box beam or girders - multiple carrying I 5 SB over Smokey Bear Road 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 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 35,890 vehicles a day, roughly 26% of them trucks, projected to reach 62,346 by 2041. The structure is 187 ft (57 m) long and 68 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesI 5 SB
CrossesSmokey Bear Road
Location07-LA-005-R77.96
RouteInterstate 5
Coordinates34.70775, -118.79607
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating41.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length187 ft (57 m)
Longest span96 ft (29.3 m)
Deck width68 ft (20.7 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,890 (2018)
Projected traffic62,346 by 2041
Trucks26%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 5 SB over Smokey Bear Road built?

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

What condition is I 5 SB over Smokey Bear Road 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 July 2023.

How much traffic does I 5 SB over Smokey Bear Road carry?

About 35,890 vehicles per day (2018 count), of which roughly 26% are trucks.

How long is I 5 SB over Smokey Bear Road?

The structure is 187 ft (57 m) long with a longest span of 96 ft (29.3 m) and a deck 68 ft wide.

Who owns I 5 SB over Smokey Bear Road?

It is owned by the State Highway Agency.