aforementioned widened sections in 1952 and 1953. US 113 through Snow Hill was reconstructed and widened in 1953 and 1954. The final two pieces of US 113 to be reconstructed were through Newark and Ironshire to the southern end of Berlin between 1954 and 1956. Instead of widening the existing highway, the U.S. Highway was built on mostly new alignment, with the northern segment through Ironshire constructed as the first carriageway of a future divided highway. The County Commissioners of Worcester County agreed to accept for maintenance the bypassed highways, Newark Road and Shire Drive, from Maryland SRC in March 1957. Divided highway expansion In 1940, DSHD initiated traffic surveys and studies to inform plans to construct a four-lane divided highway south from Dover. The studies, completed in 1942, found that US 13 from Delmar to Dover carried significantly more traffic than US 113 from Selbyville to Dover, so DSHD started planning for the divided highway to the Maryland state line to be along the US 13 corridor. However, DSHD also approved plans for expansion of US 113 to a divided highway from Milford to Little Heaven. DSHD completed the final link in the Dover–Delmar divided highway in 1957. As in Delaware, Maryland SRC prioritized completing expansion of US 13 to a four-lane highway from Virginia to Delaware, which was completed in 1966. By that time, only a small portion of US 113 around Berlin had been expanded to a divided highway. Delaware divided highways The first section of US 113 to be expanded to a divided highway was part of the new US 13 bypass of Dover. The latter highway's new four-lane course, which included a new bridge across the St. Jones River, was constructed starting in 1950 and opened to traffic April 16, 1952. As part of the project, the portion of US 113 from State Street north of Silver Lake to the new US 13 highway was expanded to a divided highway, and both U.S. Highways were marked on the expanded highway from State Street to their split at the modern intersection of US 13 and Bay Road. DSHD may have removed US 113 markers from north of Bay Road as early as 1965, and the American Association of State Highway and Transportation Officials (AASHTO) approved the northern terminus of the U.S. Highway being retracted from the north end of State Street to where US 13 meets