expanded to a divided highway from the southern end of the Princess Anne bypass south past Kings Creek in 1962, south through Westover in 1963, and south to about north of MD 667 in 1964. The Princess Anne bypass was expanded to a divided highway in 1965. US 13's expansion to a four-lane highway in Maryland was completed in 1966 when the federal highway was expanded to a divided highway from north of MD 667 south past West Pocomoke to the southern end of the Pocomoke City bypass. The next major upgrade to US 13 was the construction of the limited-access Salisbury Bypass beginning from the northern end around 1973. The Salisbury Bypass was completed south to MD 12, including the interchange with US 50, in 1975. The US 13 portion of the bypass was completed in 1981; US 13 Bus. was assigned to the bypassed highway through Fruitland and Salisbury by 1983. The interchange at the northern end of US 13's part of the Salisbury Bypass had several ramps added during the extension of the bypass west to US 50 between 2000 and 2002, which was completed on October 19, 2002, six months before it was originally planned to open. The extension of the bypass resulted in US 50 running concurrent with US 13 to the northeast of the city. This concurrent section features separate mile markers for both US 13 and US 50, with shields on the mile markers to differentiate between the two routes. Junction list Related routes Pocomoke City business route U.S. Route 13 Business (US 13 Bus.) is a business route of U.S. Route 13 that passes through Pocomoke City in Worcester and Somerset Counties in Maryland. The route begins south of Pocomoke City; US 13's four-lane divided mainline curves away to the right around the town, while US 13 Bus. continues straight ahead as a two-lane town street. After intersecting MD 366 the route connects with the original southern terminus of US 113, the latter having been rolled back to terminate at mainline US 13. For a time, the marooned segment was part of MD 250, but is now designated MD 250A. Continuing north the route heads towards the city waterfront and business district. The route soon reaches the Pocomoke River, crossing it on a drawbridge. After crossing the river the route heads out of town into rural surroundings before terminating on US 13