AVENUE U
Carrying AVENUE U over NECANICUM RIVER
IN CITY OF SEASIDE, Clatsop, Oregon
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: AVENUE U
The AVENUE U bridge in Clatsop, Oregon carries AVENUE U over NECANICUM RIVER. It was built in 1957, making it 69 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 50.3 meters (165 feet) end to end. Daily traffic averages 5,250 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 6/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How AVENUE U 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 How the historical reference is calculated.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
- 1957
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 50.3 m (165 ft)
- Deck Width
- 10.5 m (34 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 5,250 vehicles/day
- Structure Number
- 11150A111200001
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.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether AVENUE U 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 AVENUE U against other structures in Clatsop 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 AVENUE U?
AVENUE U in Clatsop, Oregon has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is AVENUE U inspected?
AVENUE U'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 5,250 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. AVENUE U 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 AVENUE U?
AVENUE U has an NBI inventory load rating of 24.3 metric tons.
Who is responsible for maintaining AVENUE U?
AVENUE U is owned and maintained by City/Municipal Highway Agency.
How old is AVENUE U and does age affect safety?
AVENUE U was built in 1957, making it 69 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.