The Sturgeon Bay Ship Canal is a ship canal connecting Sturgeon Bay with Lake Michigan across the Door Peninsula in Door County, Wisconsin. A dredged channel continues through Sturgeon Bay to Green Bay. This combined waterway allows ships to sail between Lake Michigan and Green Bay without traversing the dangerous Porte des Morts strait.
The canal is approximately 1.3 miles (2.1 km) long, cutting through the eastern side of the peninsula in a northwest-to-southeast orientation. There are no locks.

Quelle: Wikipedia