Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Analyzing deck conditions, superstructure ratings, and bad puns...
over WISHKAH RIVER
0.1 E JCT US 101
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This bridge has a Poor overall condition rating of 3 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 14,965 vehicles per day and is 77 years old.
Its sufficiency rating of 45.1 places it below the national average of 63.6.
The NBI records a navigation clearance of 10 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 235 feet long — a short crossing, about 10-15 seconds.
A movable bridge — it may occasionally stop for boat traffic.
About 10 feet above ground — standard overpass height.
About 14,965 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 30 feet wide with 1-2 lanes — a narrower crossing.
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
1949
77 years old
Structure Type
Steel (Continuous) Movable (Swing)
Total Length
235 ft
71.6 m
Deck Width
30 ft
9.0 m
Spans
2
sections between supports
Max Span
93 ft
longest unsupported section (28.3 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
10 ft
navigation clearance under deck
Daily Traffic
14,965vehicles/day
46.97597°N, 123.81206°W
Steel (Continuous) Movable (Swing)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
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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.