No. 20 and the two routes headed to Guttenberg. The Primary Road No. 56 designation ended in Guttenberg. 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. Roadwork began on June 1 and the street reopened on August 4. Major intersections References 056