 Maryland Route 623 | ||||
|---|---|---|---|---|
 | ||||
| Route information | ||||
| Maintained by MDSHA | ||||
| Length | 7.26 mi[1] (11.68 km) | |||
| Existed | 1936–present | |||
| Major junctions | ||||
| South end |  MD 161 in Darlington | |||
 US 1 in Darlington | ||||
| North end | SR 2043 near Flintville | |||
| Location | ||||
| Country | United States | |||
| State | Maryland | |||
| Counties | Harford | |||
| Highway system | ||||
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Maryland Route 623 (MD 623) is a state highway in the U.S. state of Maryland. The state highway runs 7.26 miles (11.68 km) from MD 161 in Darlington north to State Route 2043 (SR 2043) at the Pennsylvania state line in Flintville. The first section of MD 623 was constructed in the mid-1930s south from the state line. The state highway was extended south to Darlington in two segments in the 1950s.