OLD HIGHWAY 30
Carrying OLD HIGHWAY 30 over UPRR
0.1 MI S OF 2 ND STREET, Union, Oregon
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
OLD HIGHWAY 30 in Union, Oregon sits above 18% of rated Oregon bridges on inventory load rating (19 t), while its 1922 build year is earlier than 96% of Union's recorded-year cohort (166 bridges).
OLD HIGHWAY 30 in Union, Oregon is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1922, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure OR:00636 000 00011
PRE-1950 · CONCRETE · SINGLE-SPAN · SUB-LED · LOCAL-ADT · LIGHT-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: OLD HIGHWAY 30
The OLD HIGHWAY 30 bridge in Union, Oregon carries OLD HIGHWAY 30 over UPRR. It was built in 1922, making it 104 years old today. It was last reconstructed in 1984, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 61.0 meters (200 feet) end to end. Daily traffic averages 222 vehicles, placing it in the lower-traffic 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 5/9, 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.
How OLD HIGHWAY 30 compares
Age against the county: built in 1922, earlier than 159 of Union's 166 bridges with a recorded construction year (96%), against a county median build year of 1978. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Oregon bridges with a recorded inventory load rating (8,282 of 8,305 rated).
OLD HIGHWAY 30 vs every rated Oregon bridge
Inventory load rating (metric tons), FHWA NBI, this state
19 Top 82% higher than 18% of 8,282 bridges
rated Oregon bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Union inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 166 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1922
- Last Reconstructed
- 1984
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 61.0 m (200 ft)
- Deck Width
- 6.9 m (23 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 222 vehicles/day
- Structure Number
- 00636 000 00011
Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
OLD HIGHWAY 30 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 HIGHWAY 30 against other structures in Union 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 HIGHWAY 30?
OLD HIGHWAY 30 in Union, Oregon has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is OLD HIGHWAY 30 inspected?
OLD HIGHWAY 30'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 222 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD HIGHWAY 30 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 HIGHWAY 30?
OLD HIGHWAY 30 has an NBI inventory load rating of 18.8 metric tons.
Who is responsible for maintaining OLD HIGHWAY 30?
OLD HIGHWAY 30 is owned and maintained by City/Municipal Highway Agency.
How old is OLD HIGHWAY 30 and does age affect safety?
OLD HIGHWAY 30 was built in 1922, making it 104 years old and last reconstructed in 1984.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.