OLD RAILROAD GRADE
Carrying OLD RAILROAD GRADE over NORTH YAMHILL RIVER
6 MI NW OF YAMHILL, Yamhill, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLD RAILROAD GRADE
The OLD RAILROAD GRADE bridge in Yamhill, Oregon carries OLD RAILROAD GRADE over NORTH YAMHILL RIVER. It was built in 1972, making it 54 years old today. The structure is built primarily of wood or timber and spans 5 sections, stretching 48.8 meters (160 feet) end to end. Daily traffic averages 244 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by County 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. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 8.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLD RAILROAD GRADE 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 How the historical reference is calculated.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
- Wood or Timber
- Number of Spans
- 5
- Structure Length
- 48.8 m (160 ft)
- Deck Width
- 5.0 m (16 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 244 vehicles/day
- Structure Number
- 11526 000
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) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
How to read this record
OLD RAILROAD GRADE 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 OLD RAILROAD GRADE against other structures in Yamhill 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 OLD RAILROAD GRADE?
OLD RAILROAD GRADE in Yamhill, 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 OLD RAILROAD GRADE inspected?
OLD RAILROAD GRADE'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 244 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD RAILROAD GRADE 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 OLD RAILROAD GRADE?
OLD RAILROAD GRADE has an NBI inventory load rating of 8.7 metric tons.
Who is responsible for maintaining OLD RAILROAD GRADE?
OLD RAILROAD GRADE is owned and maintained by County Highway Agency.
How old is OLD RAILROAD GRADE and does age affect safety?
OLD RAILROAD GRADE 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.