US Bridges

55-405 Hov Connect over I 405 NB SR55 SB Ramps

Fair

Orange County, California · 12-ORA-405-8.80 · Structure no. 55 0944E

Built
2007
18 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
2,838 ft
13 main spans
Daily traffic
5,000
2014 count
Owner
State
State Highway Agency

About this bridge

55-405 Hov Connect over I 405 NB SR55 SB Ramps is a prestressed concrete continuous box beam or girders - multiple carrying 55-405 Hov Connect over I 405 NB SR55 SB Ramps in Orange County, California. It was built in 2007, so it is 18 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 5,000 vehicles a day, projected to reach 6,245 by 2045. The structure is 2,838 ft (865 m) long and 58 ft wide.

Carries55-405 Hov Connect
CrossesI 405 NB SR55 SB Ramps
Location12-ORA-405-8.80
RouteInterstate 405
Coordinates33.69044, -117.87019
Functional classUrban 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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior 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 Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length2,838 ft (865 m)
Longest span253 ft (77.2 m)
Deck width58 ft (17.7 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2014)
Projected traffic6,245 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 55-405 Hov Connect over I 405 NB SR55 SB Ramps built?

It was built in 2007, making it 18 years old in 2025.

What condition is 55-405 Hov Connect over I 405 NB SR55 SB Ramps 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 55-405 Hov Connect over I 405 NB SR55 SB Ramps carry?

About 5,000 vehicles per day (2014 count).

How long is 55-405 Hov Connect over I 405 NB SR55 SB Ramps?

The structure is 2,838 ft (865 m) long with a longest span of 253 ft (77.2 m) and a deck 58 ft wide.

Who owns 55-405 Hov Connect over I 405 NB SR55 SB Ramps?

It is owned by the State Highway Agency.