I-5 S RAMP TO 45TH
Carrying I-5 S RAMP TO 45TH over 50TH RAMP TO I-5 S
1.7 N JCT SR 520, King, Washington
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: I-5 S RAMP TO 45TH
The I-5 S RAMP TO 45TH bridge in King, Washington carries I-5 S RAMP TO 45TH over 50TH RAMP TO I-5 S. It was built in 1961, making it 65 years old today. The structure is built primarily of concrete continuous. Daily traffic averages 6,953 vehicles, placing it in the moderately-trafficked tier of Washington bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. None of this bridge's reported major components fall into the Poor condition range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How I-5 S RAMP TO 45TH 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 How the historical reference is calculated.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
- 1961
- Material
- Concrete Continuous
- Avg Daily Traffic
- 6,953 vehicles/day
- Structure Number
- 0006304B0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether I-5 S RAMP TO 45TH 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 I-5 S RAMP TO 45TH 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 I-5 S RAMP TO 45TH?
I-5 S RAMP TO 45TH in King, Washington on the FHWA's 0–9 scale.
How often is I-5 S RAMP TO 45TH inspected?
I-5 S RAMP TO 45TH'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 6,953 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I-5 S RAMP TO 45TH is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for I-5 S RAMP TO 45TH?
An inventory load rating is not recorded for I-5 S RAMP TO 45TH.
Who is responsible for maintaining I-5 S RAMP TO 45TH?
Ownership is not specified for I-5 S RAMP TO 45TH in the NBI.
How old is I-5 S RAMP TO 45TH and does age affect safety?
I-5 S RAMP TO 45TH was built in 1961, making it 65 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.