US Bridges

Interstate 5 over State Route 1

Fair

Orange County, California · 12-ORA-005-6.76-SJCP · Structure no. 55 0510

Built
1973
52 years old, rebuilt 2017
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
175 ft
2 main spans
Daily traffic
140,200
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over State Route 1 is a concrete continuous box beam or girders - multiple carrying Interstate 5 over State Route 1 in Orange County, California. It was built in 1973 and reconstructed in 2017, so it is 52 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 140,200 vehicles a day, roughly 7% of them trucks, projected to reach 298,413 by 2044. The structure is 175 ft (53.3 m) long and 202 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesInterstate 5
CrossesState Route 1
Location12-ORA-005-6.76-SJCP
RouteInterstate 5
CountyOrange County
StateCalifornia
Coordinates33.46706, -117.66937
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span92 ft (28 m)
Deck width202 ft (61.6 m)
Roadway width197 ft (60 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,200 (2022)
Projected traffic298,413 by 2044
Trucks7%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Interstate 5 over State Route 1 built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2017.

What condition is Interstate 5 over State Route 1 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 May 2024.

How much traffic does Interstate 5 over State Route 1 carry?

About 140,200 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Interstate 5 over State Route 1?

The structure is 175 ft (53.3 m) long with a longest span of 92 ft (28 m) and a deck 202 ft wide.

Who owns Interstate 5 over State Route 1?

It is owned by the State Highway Agency.