 Primary Road No. 56 's length past Elkader did not last long . By 1925 , the two overlaps were removed and the standalone stretch between them was renumbered Primary Road . No. 128 . By the 1950s , the western end of the route shifted to its current position in West Union . In the early 1980s , a new bypass and Turkey River bridge were built around Elkader . Iowa 13 was shifted onto the bypass and Iowa 56 was extended southward along the former Iowa 13 to the new highway . In 2004 , the two intersections of Iowa 56 along Bridge Street were rebuilt to allow large trucks to take the sharp turns . <unk> began on June 1 and the street reopened on August 4 . 
