Maryland Route 378

Maryland Route 528
Maryland Route 528 highlighted in red
Route information
Maintained by MDSHA
Length	9.04 mi (14.55 km)
Existed	1933 – present
Tourist routes	Cape to Cape Scenic Byway
Major junctions
South end	MD 378 in Ocean City
	US 50 in Ocean City MD 90 in Ocean City
North end	DE 1 in Ocean City
Location
Counties	Worcester
Highway system
Maryland highway system Interstate US State Scenic Byways ← MD 526 MD 529 → ← MD 377 MD 378 MD 380 →

Maryland Route 378
Location	Ocean City
Length	1.49 mi (2.40 km)
Tourist routes	Cape to Cape Scenic Byway

Maryland Route 528 (MD 528) is a state highway in the U.S. state of Maryland. Known for most of its length as Coastal Highway, the state highway runs 9.04 miles (14.55 km) from the southern terminus of its companion route, unsigned Maryland Route 378, in downtown Ocean City north to the Delaware state line at the northern edge of the resort town, where the highway continues as Delaware Route 1 (DE 1). MD 528 and MD 378 are the primary north–south streets of Ocean City, where they provide access to countless hotels, condos, restaurants, shops, and other businesses catering to tourists. These highways experience heavy seasonal traffic and provide access to hurricane evacuation routes, which include U.S. Route 50 (US 50), MD 90, and DE 54. Both Baltimore Avenue and Philadelphia Avenue date back to the founding of Ocean City in the late 19th century. MD 378 was assigned to Baltimore Avenue in 1927 and MD 528 was assigned to Philadelphia Avenue in 1933. MD 528 was extended north of 15th Street to the Delaware state line in 1939. Both highways were rebuilt and widened in the 1950s. MD 528 was expanded to a six-lane divided highway north of the one-way pair in the late 1980s.

MD 528 and MD 378 both have their southern termini at the intersection of Baltimore Avenue and South 1st Street at the southern end of Ocean City north of the Ocean City Inlet. Baltimore Avenue continues south and then turns east as South 2nd Street toward the Hugh T. Cropper Inlet Parking Lot that serves attractions on the Ocean City Boardwalk along the Atlantic Ocean, including Trimper's Rides and the Ocean City Life-Saving Station. From the southern terminus, MD 528 heads west on South 1st Street and then north as Philadelphia Avenue, while MD 378 heads north as Baltimore Avenue. The two state highways form a one-way pair, with MD 378 carrying three lanes of northbound traffic and MD 528 carrying three lanes of southbound traffic. Both streets intersect South Division Street, which was the site of the railroad terminus in Ocean City and is currently the site of Sunset Park and the South Division Street Transit Center, and Worcester Street, which was the site of the first automobile bridge to the resort in 1916.