Hwy 001 SB
Carrying Hwy 001 SB over Columbia River
AT INTERSTATE BRIDGE, Multnomah, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Hwy 001 SB
The Hwy 001 SB bridge in Multnomah, Oregon carries Hwy 001 SB over Columbia River. It was built in 1958, making it 68 years old today. The structure is built primarily of steel. Daily traffic averages 7,630 vehicles, placing it in the moderately-trafficked tier of Oregon bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Hwy 001 SB 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 How the historical reference is calculated.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
- 1958
- Material
- Steel
- Avg Daily Traffic
- 7,630 vehicles/day
- Structure Number
- 07333 001 30838
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 001 SB 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 001 SB 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 001 SB?
Hwy 001 SB in Multnomah, Oregon on the FHWA's 0–9 scale.
How often is Hwy 001 SB inspected?
Hwy 001 SB'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 7,630 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Hwy 001 SB 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 001 SB?
An inventory load rating is not recorded for Hwy 001 SB.
Who is responsible for maintaining Hwy 001 SB?
Ownership is not specified for Hwy 001 SB in the NBI.
How old is Hwy 001 SB and does age affect safety?
Hwy 001 SB was built in 1958, making it 68 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.