. . "Keithsburg Rail Bridge" . . . . . . . . . "formerlyChicago & Northwestern" . . . . "67.056" . . . "1981-06-21" . "1981" . . . . . "Keithsburg Rail Bridge" . . . . . . "Abandoned single-track railroad," . . . . . "Keithsburg Rail Bridge" . . . . . . . "Keithsburg Bridge" . . . . . "1909" . . .