Gathering condition ratings from coast to coast...
Gathering condition ratings from coast to coast...
Why did the truss bridge break up with the beam bridge? It needed more support.
over SILVER CREEK
0.34 E JCT OLD HWY 99
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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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 4,286 vehicles per day and is 34 years old.
Its sufficiency rating of 72.2 is above 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 102 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 4,286 vehicles cross daily — light traffic, a smooth crossing.
The deck is 37 feet wide with 2-3 lanes — moderate width.
This bridge crosses over water. Focus on the road ahead — the water is far 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
1992
34 years old
Structure Type
Prestressed Concrete Tee Beam
Total Length
102 ft
31.1 m
Deck Width
37 ft
11.2 m
Spans
1
sections between supports
Max Span
100 ft
longest unsupported section (30.5 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
4,286vehicles/day
48.62008°N, 122.33297°W
Prestressed Concrete Tee Beam
A prestressed concrete tee beam bridge combines the T-shaped cross-section with prestressing technology for improved load capacity and longer spans.
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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.