Gathering condition ratings from coast to coast...
Gathering condition ratings from coast to coast...
Why did the bridge go to therapy? It had too many spans of anxiety.
over PEDESTRIAN TRAIL
5.2 N JCT SR 520
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
This bridge has a Good overall condition rating of 7 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 85,426 vehicles per day and is 56 years old (reconstructed in 1994).
Its sufficiency rating of 59.4 places it below the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 243 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 85,426 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 81 feet wide with multiple lanes — easy to stay in a center lane.
This bridge crosses over land, not water — no water views below.
This comfort score is designed to help individuals with bridge anxiety plan their travel. All bridges in the National Bridge Inventory are regularly inspected and deemed safe for travel. This is not medical advice — if you experience severe anxiety, please consult a healthcare professional.
Year Built
1970
56 years old (rebuilt 1994)
Structure Type
Prestressed Concrete (Continuous) Stringer/Multi-beam/Girder
Total Length
243 ft
74.1 m
Deck Width
81 ft
24.7 m
Spans
3
sections between supports
Max Span
86 ft
longest unsupported section (26.2 m)
Traffic Lanes
6 lanes
One-way traffic
Daily Traffic
85,426vehicles/day
47.70568°N, 122.18019°W
Prestressed Concrete (Continuous) Stringer/Multi-beam/Girder
A prestressed concrete stringer bridge uses pretensioned concrete beams, where steel tendons are stretched before concrete is poured. This creates stronger, lighter spans.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track Washington to receive alerts when new inspection data is published. Premium members get bridge-specific notifications.
Data from the National Bridge Inventory (NBI), maintained by the Federal Highway Administration (FHWA).
Data year: 2025. Conditions may have changed since the last inspection.
This information is provided for educational and informational purposes only. It should not be used as the sole basis for any decisions related to bridge safety or transportation planning. Always consult official sources and local authorities for the most current data.