US Bridges

Von Karman Ave over Interstate 405

Fair

Orange County, California · 12-ORA-405-7.40-IRVN · Structure no. 55 0612

Built
1979
46 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
375 ft
3 main spans
Daily traffic
10,000
2014 count
Owner
State
State Highway Agency

About this bridge

Von Karman Ave over Interstate 405 is a prestressed concrete box beam or girders - multiple carrying Von Karman Ave over Interstate 405 in Orange County, California. It was built in 1979, so it is 46 years old, younger 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 10,000 vehicles a day, roughly 3% of them trucks, projected to reach 12,075 by 2045. The structure is 375 ft (114.3 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesVon Karman Ave
CrossesInterstate 405
Location12-ORA-405-7.40-IRVN
RouteCity Street 0M204
Coordinates33.67973, -117.85109
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
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 geometry7: Better than present minimum criteria
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

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length375 ft (114.3 m)
Longest span134 ft (40.8 m)
Deck width82 ft (25 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2014)
Projected traffic12,075 by 2045
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Von Karman Ave over Interstate 405 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Von Karman Ave over Interstate 405 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 February 2025.

How much traffic does Von Karman Ave over Interstate 405 carry?

About 10,000 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Von Karman Ave over Interstate 405?

The structure is 375 ft (114.3 m) long with a longest span of 134 ft (40.8 m) and a deck 82 ft wide.

Who owns Von Karman Ave over Interstate 405?

It is owned by the State Highway Agency.