BridgeSafety
Orange County, CA · Structure #55 0811

I 5

I 5 in 12-Ora-005-34.47-Sa, Orange County, California received a condition grade of B (70/100). Built in 1999, the bridge carries 300K vehicles daily on I 5 over Santa Ana River.

I 5 carries a B on the BridgeSafety Condition Score with 70/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.

The bridge was built in 1999, making it 27 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. I 5 carries an average daily traffic count of 300,000 vehicles, with 14 lane(s) crossing Santa Ana River. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.

B
70/100
70
Condition Score
300K
Daily Traffic
1999
Year Built
153.1m
Length

Component Ratings

DeckFair
5/9

The riding surface, evaluated for cracking, spalling, and wear

SuperstructureGood
7/9

Beams, girders, and trusses that support the deck

SubstructureGood
7/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
I 5
Crosses Over
Santa Ana River
State
California
County
Orange County
Location
12-Ora-005-34.47-Sa
Year Built
1999
Age
27 years
Daily Traffic
300,000
Lanes
14
Length
153.1 meters
Owner
State Highway Agency
Structure Number
55 0811

About This Bridge

I 5 is a 27-year-old bridge located 12-Ora-005-34.47-Sa in Orange County, California. The bridge carries I 5 over Santa Ana River with 14 traffic lanes, handling approximately 300K vehicles per day. Built in 1999, the structure spans 153.1 meters.

The bridge received a Condition Grade of B (70/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).

This bridge is owned and maintained by State Highway Agency.

Location Map

12-Ora-005-34.47-Sa, Orange County, California

33.784092, -117.882047

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Frequently Asked Questions

I 5 has a Condition Score of 70/100 (Grade B). Its deck is rated 5/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.

I 5 was built in 1999, making it 27 years old. The average bridge age in the United States is 48 years.

I 5 carries approximately 300K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 153.1 meters long and located on I 5 in 12-Ora-005-34.47-Sa, Orange County, California.

No, I 5 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.

I 5 is located 12-Ora-005-34.47-Sa in Orange County, California. The bridge carries I 5 over Santa Ana River. Its coordinates are 33.784092, -117.882047. It is maintained by State Highway Agency.

I 5 carries I 5 over Santa Ana River. The bridge is 153.1 meters long and was built in 1999.

Last updated:

Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.

Source: FHWA National Bridge Inventory, 2026.