LIBERTY ST SE
Carrying LIBERTY ST SE over PRINGLE CREEK
BETWEEN MILL & OAK SE, Marion, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LIBERTY ST SE
The LIBERTY ST SE bridge in Marion, Oregon carries LIBERTY ST SE over PRINGLE CREEK. It was built in 1928, making it 98 years old today. The structure is built primarily of concrete continuous and spans 8 sections, stretching 94.2 meters (309 feet) end to end. Daily traffic averages 21,752 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 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 10.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LIBERTY ST SE 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 How the historical reference is calculated.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
- 1928
- Material
- Concrete Continuous
- Number of Spans
- 8
- Structure Length
- 94.2 m (309 ft)
- Deck Width
- 30.2 m (99 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 21,752 vehicles/day
- Structure Number
- 470604072 00557
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • 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 LIBERTY ST SE 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 LIBERTY ST SE against other structures in Marion 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 LIBERTY ST SE?
LIBERTY ST SE in Marion, Oregon has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is LIBERTY ST SE inspected?
LIBERTY ST SE'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 21,752 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LIBERTY ST SE 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 LIBERTY ST SE?
LIBERTY ST SE has an NBI inventory load rating of 10.0 metric tons.
Who is responsible for maintaining LIBERTY ST SE?
LIBERTY ST SE is owned and maintained by City/Municipal Highway Agency.
How old is LIBERTY ST SE and does age affect safety?
LIBERTY ST SE was built in 1928, making it 98 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.