Blackhawk Avenue Bridge
Blackhawk Avenue Mississippi River Crossing At Prairie du Chien
Prairie du Chien, Wisconsin

Blackhawk Avenue Bridge

• Structure ID: NBI B12001400000000.
• Location: River Mile 635.3.
• River Elevation: 611 Feet.
• Highway: Blackhawk Avenue.
• Daily Traffic Count: 1,930 (2001).
• Bridge Type: Steel Girder, Concrete Deck.
• Length: 135 Feet Overall, 50 Foot Longest Span.
• Width: 30 Feet, 2 Lanes.
• Navigation Channel Width: Non-Navigable.
• Height Above Water: 15 Feet.
• Date Built: Opened 1955.
The settlement at Prairie du Chien started on St. Feriole Island, and island in the Mississippi River. Due to repeated floodings, the city migrated towards the mainland, and the island is most parkland and historic site today.

There is a long history of bridges at this location, once a main street crossing the city. As a result, is a little more ornamental that what might otherwise be expected. In fact, this bridge carried the main US-18 crossing for many years, from when it was built in 1955 to when the new bridges were built in 1975.

Blackhawk Avenue Bridge

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Photo and text by John A. Weeks III, Copyright © 2005, all rights reserved.
For further information, contact: john@johnweeks.com