US Bridges

N55-N5 Connector over Route 5 & 55 & Conns

Fair

Orange County, California · 12-ORA-055-10.37-TUS · Structure no. 55 0643G

Built
1995
30 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,280 ft
7 main spans
Daily traffic
26,900
2024 count
Owner
State
State Highway Agency

About this bridge

N55-N5 Connector over Route 5 & 55 & Conns is a prestressed concrete continuous box beam or girders - multiple carrying N55-N5 Connector over Route 5 & 55 & Conns in Orange County, California. It was built in 1995, so it is 30 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 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 26,900 vehicles a day, roughly 6% of them trucks, projected to reach 46,306 by 2046. The structure is 1,280 ft (390.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN55-N5 Connector
CrossesRoute 5 & 55 & Conns
Location12-ORA-055-10.37-TUS
RouteState Highway 55
Coordinates33.73839, -117.83333
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 spans7
Design loadHS 20 + Mod
Structure length1,280 ft (390.1 m)
Longest span210 ft (64 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,900 (2024)
Projected traffic46,306 by 2046
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N55-N5 Connector over Route 5 & 55 & Conns built?

It was built in 1995, making it 30 years old in 2025.

What condition is N55-N5 Connector over Route 5 & 55 & Conns 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 April 2024.

How much traffic does N55-N5 Connector over Route 5 & 55 & Conns carry?

About 26,900 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is N55-N5 Connector over Route 5 & 55 & Conns?

The structure is 1,280 ft (390.1 m) long with a longest span of 210 ft (64 m) and a deck 43 ft wide.

Who owns N55-N5 Connector over Route 5 & 55 & Conns?

It is owned by the State Highway Agency.