US Bridges

SR 73 SB over Wildlife Pathway

Fair

Orange County, California · 12-ORA-073-20.86-LGNB · Structure no. 55 0862L

Built
1996
29 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
34,500
2020 count
Owner
State
State Highway Agency

About this bridge

SR 73 SB over Wildlife Pathway is a prestressed concrete box beam or girders - multiple carrying SR 73 SB over Wildlife Pathway in Orange County, California. It was built in 1996, so it is 29 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 34,500 vehicles a day, projected to reach 42,450 by 2040. The structure is 89 ft (27 m) long and 72 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSR 73 SB
CrossesWildlife Pathway
Location12-ORA-073-20.86-LGNB
RouteState Highway 73
Coordinates33.61671, -117.81948
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
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length89 ft (27 m)
Longest span85 ft (26 m)
Deck width72 ft (21.8 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,500 (2020)
Projected traffic42,450 by 2040
Trucks0%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed2.5 mi (4 km)
TollOn a toll road
National Highway SystemYes

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 SR 73 SB over Wildlife Pathway built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR 73 SB over Wildlife Pathway 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 August 2023.

How much traffic does SR 73 SB over Wildlife Pathway carry?

About 34,500 vehicles per day (2020 count).

How long is SR 73 SB over Wildlife Pathway?

The structure is 89 ft (27 m) long with a longest span of 85 ft (26 m) and a deck 72 ft wide.

Who owns SR 73 SB over Wildlife Pathway?

It is owned by the State Highway Agency.