4TH AVE S
Carrying 4TH AVE S over PARKING GARAGE
4th Ave S & Jackson St, King, Washington
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 4TH AVE S
The 4TH AVE S bridge in King, Washington carries 4TH AVE S over PARKING GARAGE. It was built in 1910, making it 116 years old today. It was last reconstructed in 1981, extending its service life. The structure is built primarily of concrete and spans 42 sections, stretching 359.1 meters (1178 feet) end to end. Daily traffic averages 27,000 vehicles, placing it in the heavily-trafficked tier of Washington bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 3/9, superstructure at 5/9, substructure at 6/9. 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 25.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 4TH AVE S compares
Live comparison across Washington.
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 How the historical reference is calculated.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
- 1910
- Last Reconstructed
- 1981
- Material
- Concrete
- Number of Spans
- 42
- Structure Length
- 359.1 m (1178 ft)
- Deck Width
- 13.7 m (45 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 27,000 vehicles/day
- Structure Number
- 088301000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 3/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • At 5/9, 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
4TH AVE S 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 4TH AVE S against other structures in King and across Washington. Washington 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 4TH AVE S?
4TH AVE S in King, Washington has a deck rating of 3/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is 4TH AVE S inspected?
4TH AVE S'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 27,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 4TH AVE S 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 4TH AVE S?
4TH AVE S has an NBI inventory load rating of 25.4 metric tons.
Who is responsible for maintaining 4TH AVE S?
4TH AVE S is owned and maintained by City/Municipal Highway Agency.
How old is 4TH AVE S and does age affect safety?
4TH AVE S was built in 1910, making it 116 years old and last reconstructed in 1981.
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.