NW FRONT AVE
Carrying NW FRONT AVE over B-77 SEMI-VIADUCT
AT POP TERMINAL 1, Multnomah, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NW FRONT AVE
The NW FRONT AVE bridge in Multnomah, Oregon carries NW FRONT AVE over B-77 SEMI-VIADUCT. It was built in 1924, making it 102 years old today. The structure is built primarily of concrete continuous and spans 15 sections, stretching 67.1 meters (220 feet) end to end. Daily traffic averages 11,101 vehicles, placing it in the heavily-trafficked tier of Oregon bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 12.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NW FRONT AVE compares
Live comparison across Oregon.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1924
- Material
- Concrete Continuous
- Number of Spans
- 15
- Structure Length
- 67.1 m (220 ft)
- Deck Width
- 6.7 m (22 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 11,101 vehicles/day
- Structure Number
- 25B77 000 B-77
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether NW FRONT AVE is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare NW FRONT AVE against other structures in Multnomah and across Oregon. Oregon bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for NW FRONT AVE?
NW FRONT AVE in Multnomah, Oregon has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is NW FRONT AVE inspected?
NW FRONT AVE's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 11,101 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NW FRONT AVE is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NW FRONT AVE?
NW FRONT AVE has an NBI inventory load rating of 12.0 metric tons.
Who is responsible for maintaining NW FRONT AVE?
NW FRONT AVE is owned and maintained by City/Municipal Highway Agency.
How old is NW FRONT AVE and does age affect safety?
NW FRONT AVE was built in 1924, making it 102 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.