N. SECOND AVE
Carrying N. SECOND AVE over SALEM DITCH
01 N OF IDA STREET, Marion, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: N. SECOND AVE
The N. SECOND AVE bridge in Marion, Oregon carries N. SECOND AVE over SALEM DITCH. It was built in 1965, making it 61 years old today. The structure is built primarily of concrete and spans 1 section, stretching 11.0 meters (36 feet) end to end. Daily traffic averages 2,866 vehicles, placing it in the moderately-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 7/9, superstructure at 6/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 22.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How N. SECOND 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 How the historical reference is calculated.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
- 1965
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 11.0 m (36 ft)
- Deck Width
- 7.3 m (24 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 2,866 vehicles/day
- Structure Number
- 47B004000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • 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) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
How to read this record
N. SECOND AVE is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare N. SECOND AVE 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 N. SECOND AVE?
N. SECOND AVE in Marion, Oregon has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is N. SECOND AVE inspected?
N. SECOND 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 2,866 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N. SECOND AVE is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for N. SECOND AVE?
N. SECOND AVE has an NBI inventory load rating of 22.9 metric tons.
Who is responsible for maintaining N. SECOND AVE?
N. SECOND AVE is owned and maintained by City/Municipal Highway Agency.
How old is N. SECOND AVE and does age affect safety?
N. SECOND AVE was built in 1965, making it 61 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.