US Bridges

JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp

Fair

Orange County, California · 12-ORA-073-24.70-NPTB · Structure no. 55 0796K

Built
1996
29 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
308 ft
3 main spans
Daily traffic
9,750
2014 count
Owner
State
State Highway Agency

About this bridge

JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp is a prestressed concrete continuous box beam or girders - multiple carrying JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp 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 9,750 vehicles a day, roughly 1% of them trucks, projected to reach 10,700 by 2042. The structure is 308 ft (94 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJAMBOREE-S73 on Ra
CrossesS73-UNIVERSITY DR Off-Rp
Location12-ORA-073-24.70-NPTB
RouteState Highway 73
CountyOrange County
StateCalifornia
Coordinates33.653, -117.86324
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.
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 geometry7: Better than present minimum 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
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length308 ft (94 m)
Longest span115 ft (35 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,750 (2014)
Projected traffic10,700 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp built?

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

What condition is JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp 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 JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp carry?

About 9,750 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp?

The structure is 308 ft (94 m) long with a longest span of 115 ft (35 m) and a deck 39 ft wide.

Who owns JAMBOREE-S73 on Ra over S73-UNIVERSITY DR Off-Rp?

It is owned by the State Highway Agency.