Bridges: the original social network. Connecting communities since 850 BC.
Bridges: the original social network. Connecting communities since 850 BC.
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
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 7,640 vehicles per day and is 54 years old.
Its sufficiency rating of 59.5 places it below the national average of 63.6.
The NBI records a navigation clearance of 18 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 576 feet long — a short crossing, about 10-15 seconds.
A movable bridge — it may occasionally stop for boat traffic.
About 18 feet above ground — moderate height, similar to a 3-5 story building.
About 7,640 vehicles cross daily — light traffic, a smooth crossing.
The deck is 42 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
1972
54 years old
Structure Type
Steel Movable (Bascule)
Total Length
576 ft
175.6 m
Deck Width
42 ft
12.7 m
Spans
1
sections between supports
Max Span
143 ft
longest unsupported section (43.6 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
18 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
7,640vehicles/day
45.09687°N, 87.59810°W
Steel Movable (Bascule)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track Michigan 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.