two lanes and passes along the northern edge of the Oakland Mills village. The highway passes Howard High School and has an interchange with eastbound MD 100. Access to westbound MD 100 is immediately to the east via MD 104 (Waterloo Road). MD 108 turns south onto Waterloo Road, passes the historic Curtis-Shipley Farmstead, and intersects Snowden River Parkway, which ends at its interchange with MD 100 to the east. The state highway continues south along the eastern edge of the village of Long Reach. South of Old Waterloo Road, MD 108 expands to four lanes and gains a median shortly before reaching its eastern terminus at MD 175 (Rouse Parkway) a short distance west of MD 175's interchange with Interstate 95 (I-95). MD 108 is a part of the National Highway System as a principal arterial in three sections: from its western terminus at MD 27 in Damascus to Mullinix Mill Road; from Brookeville Road near Olney to MD 650 in Ashton; and from MD 216 at Highland to MD 32 in Clarksville. History MD 108 originally extended from MD 27 in Damascus to MD 97 in Olney. Continuing east along what is today MD 108, as of 1939, route numbers assigned to the highway included MD 28 from Olney to Ashton; US 29 from Ashton to Columbia, which was then a hamlet at the site of the modern MD 108–US 29 interchange; a county highway from Columbia to Jonestown, a hamlet at the site of the modern MD 108–MD 104 intersection; and MD 531 from Jonestown to west of Waterloo, a village at the intersection of US 1 and MD 175. The US 29 segment was originally designated MD 27 in 1927; the original highway numbered MD 29 was what is today MD 27. When US 29 was extended into Maryland in 1934, the routes swapped numbers to their present designations. By 1946, MD 108 was extended east to Ashton when MD 28 was truncated at MD 97 at Norbeck. In addition, MD 531 was replaced by an extension of MD 175. The first segment of MD 108 was built by Montgomery County with state aid from Brink Road south to Warfield Road in the town of Laytonsville by 1910. This segment was part of a macadam road from Laytonsville south toward Gaithersburg that later became part of MD 124. The next segment of MD 108 was a