Structure 55 0814 · Orange County, CA

Interstate 5 over State College BLVD

Carries Interstate 5 over State College BLVD, 12-ora-005-35.19-ana.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT264 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

264 ft end to end, longest span 150 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built200026 years old
Length264.1 ft80.5 m
Daily traffic267,000counted 2016
Last inspectedNovember 2023every 24 months

Location

StateCalifornia
CountyOrange
Location12-ora-005-35.19-ana
CarriesInterstate 5
CrossesState College BLVD
Coordinates33.79203, -117.88962

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length264.1 ft (80.5 m)
Max Span149.9 ft (45.7 m)
Deck Width290.4 ft (88.5 m)
Deck Area7124.2 sq m
Main Spans2
Year Built2000

Traffic

Avg Daily Traffic267,000 (2016)
Truck Traffic7%
Lanes On Bridge17
Lanes Under Bridge12

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number55 0814

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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