The Duluth Aer­i­al Lift Bridge is a span con­fig­u­ra­tion bas­cule lift bridge built 1901–1905 and mod­i­fied in 1929. It is locat­ed on Lake Avenue and cross­es the Duluth Ship Chan­nel, which con­nects the city of Duluth to Min­neso­ta Point. The bridge was designed by Thomas F. McGilvray and C.A.P. Turn­er and built by the Mod­ern Steel Struc­tur­al Com­pa­ny. The bridge is sig­nif­i­cant as a rare type of bridge con­struc­tion and as a resource in the Duluth Ship Chan­nel His­toric Dis­trict.