I-5 (Hwy 1)
I-5 (Hwy 1) in 0.8 MI S Of Interstate BR, Multnomah County, Oregon received a condition grade of B (67/100). Built in 1987, the bridge carries 126K vehicles daily on I-5 (Hwy 1) over Oregon Slough.
Component Ratings
The riding surface — evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I-5 (Hwy 1) is a 39-year-old bridge located 0.8 MI S Of Interstate BR in Multnomah County, Oregon. The bridge carries I-5 (Hwy 1) over Oregon Slough with 8 traffic lanes, handling approximately 126K vehicles per day. Built in 1987, the structure spans 403.9 meters.
The bridge received a Condition Grade of B (67/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-5 (Hwy 1) has a Condition Score of 67/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-5 (Hwy 1) was built in 1987, making it 39 years old. The average bridge age in the United States is 48 years.
I-5 (Hwy 1) carries approximately 126K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 403.9 meters long and located on I-5 (Hwy 1) in 0.8 MI S Of Interstate BR, Multnomah County, Oregon.
No, I-5 (Hwy 1) 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 (Hwy 1) is located 0.8 MI S Of Interstate BR in Multnomah County, Oregon. The bridge carries I-5 (Hwy 1) over Oregon Slough. Its coordinates are 45.607672, -122.681431. It is maintained by State Highway Agency.
I-5 (Hwy 1) carries I-5 (Hwy 1) over Oregon Slough. The bridge is 403.9 meters long and was built in 1987.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.