in Bladensburg. MD 450's interchange with MD 201 was constructed in 1954 and 1955. Starting in 1956, the Peace Cross intersection was raised to a higher elevation above the Anacostia River and reconstructed to reduce the risk of flooding. The first divided highway segments in the county were immediately to the east of the MD 202 split and from the Baltimore–Washington Parkway east to Landover Hills, which were expanded in 1963. The gap between the divided highway sections was filled in 1965. MD 450 was expanded to a divided highway from just west of the Capital Beltway to MD 564 in Lanham in 1966 and between Landover Hills and the Beltway in 1967. MD 450 was renamed Annapolis Road in Prince George's County in 1970. In 1985, the road was expanded to a divided highway on either side of its modern intersection with MD 193, which had been relocated onto Glenn Dale Boulevard that year. MD 450 was expanded to a divided highway from MD 564 to Whitfield Chapel Road east of the Amtrak Northeast Corridor in 1993; its interchange with MD 564 was built the same year. The first step in expanding the highway from Lanham to Bowie occurred in 2000 when the MD 704 intersection was relocated and the highway was widened from Forbes Boulevard to just east of the new MD 704 intersection. The following year, the divided highway was extended east from MD 704 to the existing divided highway at the MD 193 intersection. In 2005, the expansion of MD 450 from Lanham to Bowie was completed when the segments from Whitfield Chapel Road to Forbes Boulevard and from MD 193 to east of Stonybrook Drive in Bowie was completed. The only major relocation in the highway was from west of the Popes Creek Subdivision to east of MD 197. The old road from the western split to MD 197 was redesignated MD 450B. Junction list MD 450 is signed east–west from US 1 Alt in Bladensburg to MD 435 in Naval Academy and north–south from MD 435 to US 50/US 301/MD 2 in Arnold. Auxiliary routes MD 450 has six auxiliary routes. MD 450A is in Lanham; the remainder are in Bowie. MD 450A is the designation for an unnamed segment of the old alignment of MD 450 that parallels the westbound direction of the highway at its intersection with MD 704 in Lanham. MD