Girish Mahajan (Editor)

Maryland Route 623

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Existed:  1936 – present
Counties:  Harford
Constructed  1936
South end:  MD 161 in Darlington
Length  11.68 km
County  Harford County
Maryland Route 623
North end:  SR 2043 near Flintville

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 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.


Map of MD-623, 5, Dublin, MD, USA

Route description

MD 623 begins at an intersection with MD 161 (Darlington Road) in the village of Darlington. The state highway heads north as Castleton Road and quickly meets U.S. Route 1 (Conowingo Road). MD 623 passes through the community of Berkley centered on the highway's intersection with Berkley Road. The area is part of the Berkley Crossroads Historic District, which contains the Berkley School and the Rigbie House. MD 623 intersects Glen Cove Road and crosses Peddler Run in the village of Castleton before curving to the west. The state highway turns north onto Flintville Road, which heads through a forested area. MD 623 veers northwest and crosses Broad Creek, which is wide at this point from the backwater of the Susquehanna River from Conowingo Dam. The state highway passes through the hamlet of Flintville before reaching its northern terminus at the Pennsylvania state line. Flintville Road continues north as SR 2043 in Peach Bottom Township in the southeast corner of York County.


The first section of MD 623 was constructed along Flintville Road from the Pennsylvania state line to south of Susquehanna Hall Road around 1936. Flintville Road was improved from Castleton Road to near Susquehanna Hall Road in 1950 and 1951. MD 623 was extended south to Castleton Road in 1953 and to US 1 in 1956. The highway's southern terminus was moved the short distance south to MD 161 in 1978.

Junction list

The entire route is in Harford County.


Maryland Route 623 Wikipedia

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