Connecting the data points... literally.
Connecting the data points... literally.
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This bridge has a Fair overall condition rating of 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 21,000 vehicles per day and is 87 years old.
Its sufficiency rating of 47.9 places it below the national average of 63.6.
The NBI records a navigation clearance of 42 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 has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 1424 feet long — a moderate crossing, about 30 seconds.
A movable bridge — it may occasionally stop for boat traffic.
About 42 feet above ground — moderate height, similar to a 3-5 story building.
About 21,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 48 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
1939
87 years old
Structure Type
Steel Movable (Lift)
Total Length
1,424 ft
434.0 m
Deck Width
48 ft
14.7 m
Spans
3
sections between supports
Max Span
200 ft
longest unsupported section (61.0 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
42 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
21,000vehicles/day
46.42042°N, 117.03350°W
Steel Movable (Lift)
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.