NW 185TH Ave
Carrying NW 185TH Ave over Hwy 47 US 26
10.2 MI W OF PORTLAND CC, Washington, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NW 185TH Ave
The NW 185TH Ave bridge in Washington, Oregon carries NW 185TH Ave over Hwy 47 US 26. It was built in 1972, making it 54 years old today. The structure is built primarily of prestressed concrete continuous. Daily traffic averages 100,225 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 NW 185TH 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 How the historical reference is calculated.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
- 1972
- Material
- Prestressed Concrete Continuous
- Avg Daily Traffic
- 100,225 vehicles/day
- Structure Number
- 09770 047C06429
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 NW 185TH 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 185TH Ave against other structures in Washington 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 185TH Ave?
NW 185TH Ave in Washington, Oregon on the FHWA's 0–9 scale.
How often is NW 185TH Ave inspected?
NW 185TH 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 100,225 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NW 185TH Ave 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 NW 185TH Ave?
An inventory load rating is not recorded for NW 185TH Ave.
Who is responsible for maintaining NW 185TH Ave?
Ownership is not specified for NW 185TH Ave in the NBI.
How old is NW 185TH Ave and does age affect safety?
NW 185TH Ave was built in 1972, making it 54 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.