Sturgeon Bay Bridge, Historic bascule bridge in Sturgeon Bay, United States.
The Sturgeon Bay Bridge is a movable lift bridge that spans the shipping channel with a double-leaf rolling mechanism. The structure features Warren and Parker through-trusses that allow the span to raise for watercraft passage while supporting vehicle traffic above.
The structure was completed in 1931 by engineering firm Keller & Harrington of Chicago as the area's first toll-free crossing over the bay. It was later recognized on the National Register of Historic Places, acknowledging its importance as an early 20th-century engineering achievement.
The bridge connects both sides of the bay and serves as a vital link in the daily life of local residents. It shapes the waterfront landscape and is often recognized by visitors as a symbol of the city.
Vehicles must observe the height restrictions at the center and sides of the bridge to avoid damage. Pedestrians and bicyclists can cross but should exercise caution, especially when the bridge is in operation for watercraft.
It remains the only operating Scherzer-type double-leaf rolling lift bascule bridge with overhead trusses in Wisconsin. This uncommon engineering design makes it a valuable example of a disappearing bridge type that is rarely constructed anymore.
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