US Bridges

Magnolia Boulevard over Route 5 & Frontage RD

Fair

Los Angeles County, California · 07-LA-005-29.39-BRB · Structure no. 53 1088

Built
1959
66 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
347 ft
4 main spans
Daily traffic
33,212
2018 count
Owner
State
State Highway Agency

About this bridge

Magnolia Boulevard over Route 5 & Frontage RD is a concrete stringer/multi-beam or girder carrying Magnolia Boulevard over Route 5 & Frontage RD in Los Angeles County, California. It was built in 1959, so it is 66 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 33,212 vehicles a day, roughly 6% of them trucks, projected to reach 44,967 by 2046. The structure is 347 ft (105.8 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMagnolia Boulevard
CrossesRoute 5 & Frontage RD
Location07-LA-005-29.39-BRB
RouteCity Street 0L301
CountyLos Angeles County
StateCalifornia
Coordinates34.18074, -118.31427
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length347 ft (105.8 m)
Longest span89 ft (27.1 m)
Deck width66 ft (20.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,212 (2018)
Projected traffic44,967 by 2046
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Magnolia Boulevard over Route 5 & Frontage RD built?

It was built in 1959, making it 66 years old in 2025.

What condition is Magnolia Boulevard over Route 5 & Frontage RD 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 December 2024.

How much traffic does Magnolia Boulevard over Route 5 & Frontage RD carry?

About 33,212 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Magnolia Boulevard over Route 5 & Frontage RD?

The structure is 347 ft (105.8 m) long with a longest span of 89 ft (27.1 m) and a deck 66 ft wide.

Who owns Magnolia Boulevard over Route 5 & Frontage RD?

It is owned by the State Highway Agency.