Lehigh Valley Thruway in the early 1950s and the relocation of US 22 to that route, US 222 was extended east along Tilghman Street to 7th Street, then north on 7th Street to the interchange with the new freeway. In the late 1950s, US 222 was realigned to a newly constructed bypass carrying US 309 and PA 29, west of Allentown. From the south, US 222 left Hamilton Boulevard and turned north onto the freeway. US 222 terminated at an interchange with US 22, US 309, and PA 29 in South Whitehall Township. The freeway, originally signed as US 309/PA 29/US 222, dropped the PA 29 designation in 1966; in 1968, US 309 was replaced with to PA 309 and US 222 was truncated to end at the current northern termini. By the 1980s, I-78 became part of the freeway that occupied PA 309. US 222 in Maryland was widened and resurfaced between what is now the MD 222–MD 275—MD 824 intersection and Port Deposit in 1959 and 1960. US 222 was relocated as part of the construction of its original diamond interchange with I-95 in 1962 and 1963. The old alignment of US 222 east of its I-95 interchange became MD 824. The highway was resurfaced with bituminous concrete from MD 7 to US 40 and reconstructed and widened from US 40 to the southern MD 824 intersection in 1968 and 1969. The widening work included widening US 222's bridge across the Baltimore and Ohio Railroad, which was removed and replaced between 1987 and 1989. The I-95 interchange was converted from a standard diamond to a four-ramp partial cloverleaf with all four ramps east of US 222 between 1993 and 1994. With increased development in the late 20th century the two-lane road became increasingly congested. To alleviate these problems a number of construction projects took place, most notably a four-lane Reading bypass, a four-lane expressway to connect Lancaster to Reading, and a four-lane expressway bypass around the borough of Kutztown, which is situated between Reading and Allentown. Studies for a limited-access highway connecting Lancaster and Reading began in the early 1950s. In 1962, construction began on a four-lane highway between Spring Township and Bern Township that would eventually connect to US 222. After construction stopped, this stretch became known as "The Road to Nowhere." In 1970, construction began for a freeway bypass carrying US 222 around Kutztown. The US