Kammala jumla mai zuwa: Amurka ta shiga tattaunawa da Colombia don haƙƙin gina tashar; an sanya hannu kan wata yarjejeniya amma Majalisar Dattawan Colombia ta ƙi. A watan Nuwambar 1903, Panama, tare da goyon bayan Amurka, ta rabu da Colombia, kuma Bunau-Varilla, wakilin sabuwar gwamnatin a Washington, ya sanya hannu kan wata yarjejeniya da ta ba Amurka
wani yanki wanda za a gina canal. An kira Majalisar Dattijan Amurka don tabbatar da yarjejeniyar a watan Fabrairun 1904; muhawarar ta fara ne yayin da Hanna ke mutuwa. An amince da yarjejeniyar a ranar 23 ga Fabrairu, 1904, kwana takwas bayan mutuwar Hanna.