The Mississippi River locks would be built between St.Louis and the Iowa-Missouri border at Quincy, Illinois, at Canton, Saveron, Clarksville and Winfield, Missouri.

• 密西西比河上的船闸将建在依阿华、密苏里交界处与圣路易斯之间，具体地点为伊里诺伊州的昆西、密苏里州的坎顿、萨佛轮、克拉克斯维尔以及温菲尔德。