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.
Why was the bridge always tired? Too many crossings.
over CITY WATERWAY CS2749
E 11TH ST JCT I-705
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Fair overall condition rating of 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 3,100 vehicles per day and is 115 years old (reconstructed in 2013).
Its sufficiency rating of 63.1 places it below the national average of 63.6.
The NBI records a navigation clearance of 139 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 1748 feet long — a longer crossing, over 1 minute.
A movable bridge — it may occasionally stop for boat traffic.
About 139 feet above ground — a high bridge with significant elevation.
About 3,100 vehicles cross daily — light traffic, a smooth crossing.
The deck is 51 feet wide with 3-4 lanes — standard 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
1911
115 years old (rebuilt 2013)
Structure Type
Steel Movable (Lift)
Total Length
1,748 ft
532.8 m
Deck Width
51 ft
15.6 m
Spans
1
sections between supports
Max Span
221 ft
longest unsupported section (67.4 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
139 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
3,100vehicles/day
47.25396°N, 122.43308°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.