NW Wallula Ave
NW Wallula Ave in 010 MI NW Gresham Cty Hal, Multnomah County, Oregon received a condition grade of B (78/100). Built in 1994, the bridge carries 133K vehicles daily on NW Wallula Ave over Trimet Light Rail Track.
NW Wallula Ave carries a B on the BridgeSafety Condition Score with 78/100. 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 1994, making it 32 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. NW Wallula Ave carries an average daily traffic count of 133,422 vehicles, with 2 lane(s) crossing Trimet Light Rail Track. The owning agency is Federal - Army; bridge inspection records flow into the federal NBI database annually.
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
NW Wallula Ave is a 32-year-old bridge located 010 MI NW Gresham Cty Hal in Multnomah County, Oregon. The bridge carries NW Wallula Ave over Trimet Light Rail Track with 2 traffic lanes, handling approximately 133K vehicles per day. Built in 1994, the structure spans 34.1 meters.
The bridge received a Condition Grade of B (78/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by Federal - Army.
Location Map
Frequently Asked Questions
NW Wallula Ave has a Condition Score of 78/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
NW Wallula Ave was built in 1994, making it 32 years old. The average bridge age in the United States is 48 years.
NW Wallula Ave carries approximately 133K vehicles per day (average daily traffic). The bridge has 2 traffic lanes. It is 34.1 meters long and located on NW Wallula Ave in 010 MI NW Gresham Cty Hal, Multnomah County, Oregon.
No, NW Wallula Ave is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
NW Wallula Ave is located 010 MI NW Gresham Cty Hal in Multnomah County, Oregon. The bridge carries NW Wallula Ave over Trimet Light Rail Track. Its coordinates are 45.509411, -122.444825. It is maintained by Federal - Army.
NW Wallula Ave carries NW Wallula Ave over Trimet Light Rail Track. The bridge is 34.1 meters long and was built in 1994.
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.