US Bridges

Magnolia Avenue over UP RR

Fair

Orange County, California · 300 S/O Route I-5 Frwy. · Structure no. 55C0613

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
1 main span
Daily traffic
41,400
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Magnolia Avenue over UP RR is a prestressed concrete box beam or girders - multiple carrying Magnolia Avenue over UP RR in Orange County, California. It was built in 1999, so it is 26 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 41,400 vehicles a day, roughly 6% of them trucks, projected to reach 86,189 by 2043. The structure is 156 ft (47.5 m) long and 118 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMagnolia Avenue
CrossesUP RR
Location300 S/O Route I-5 Frwy.
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.85362, -117.97601
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length156 ft (47.5 m)
Longest span152 ft (46.3 m)
Deck width118 ft (36 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,400 (2019)
Projected traffic86,189 by 2043
Trucks6%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Magnolia Avenue over UP RR built?

It was built in 1999, making it 26 years old in 2025.

What condition is Magnolia Avenue over UP RR 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 September 2023.

How much traffic does Magnolia Avenue over UP RR carry?

About 41,400 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Magnolia Avenue over UP RR?

The structure is 156 ft (47.5 m) long with a longest span of 152 ft (46.3 m) and a deck 118 ft wide.

Who owns Magnolia Avenue over UP RR?

It is owned by the City or Municipal Highway Agency.