HWY 1W/GLISAN RAMP
Carrying HWY 1W/GLISAN RAMP over FRONT AVE & UPRR
AT NW END OF STEEL BR., Multnomah, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY 1W/GLISAN RAMP
The HWY 1W/GLISAN RAMP bridge in Multnomah, Oregon carries HWY 1W/GLISAN RAMP over FRONT AVE & UPRR. It was built in 1950, making it 76 years old today. The structure is built primarily of steel. Daily traffic averages 19,500 vehicles, placing it in the heavily-trafficked tier of Oregon bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. No reported major component scores in the Poor range under the current federal condition thresholds.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY 1W/GLISAN RAMP 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 How the historical reference is calculated.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
- 1950
- Material
- Steel
- Avg Daily Traffic
- 19,500 vehicles/day
- Structure Number
- 06683A01WX00031
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether HWY 1W/GLISAN RAMP 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 HWY 1W/GLISAN RAMP 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 HWY 1W/GLISAN RAMP?
HWY 1W/GLISAN RAMP in Multnomah, Oregon on the FHWA's 0–9 scale.
How often is HWY 1W/GLISAN RAMP inspected?
HWY 1W/GLISAN RAMP'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 19,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY 1W/GLISAN RAMP is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for HWY 1W/GLISAN RAMP?
An inventory load rating is not recorded for HWY 1W/GLISAN RAMP.
Who is responsible for maintaining HWY 1W/GLISAN RAMP?
Ownership is not specified for HWY 1W/GLISAN RAMP in the NBI.
How old is HWY 1W/GLISAN RAMP and does age affect safety?
HWY 1W/GLISAN RAMP was built in 1950, making it 76 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.