Maryland Route 90 (MD 90) is a state highway in the U.S. state of Maryland. Known as the Ocean City Expressway, the state highway runs from U.S. Route 50 (US 50) near Whaleyville to MD 528 in Ocean City. MD 90 is a two-lane expressway that provides one of the main access routes to Ocean City, especially the northern part of the resort town, and thus sees heavy seasonal traffic. The highway was constructed from Ocean City starting in 1970. The state highway was opened west to MD 589 in 1972 and to US 113 in 1975. MD 90 was completed west to US 50 in 1976. Route description MD 90 begins at a partial directional interchange with US 50 (Ocean Gateway) east of Whaleyville. There is no access from westbound MD 90 to eastbound US 50 or from westbound US 50 to eastbound MD 90. MD 90 heads east as a two-lane undivided freeway with rumble strips within the painted median. Headlight use is required at all times. After passing under MD 346 (Old Ocean City Boulevard) with no access, the state highway crosses over Church Branch. MD 90 comes to a bridge over the Snow Hill Line of the Maryland and Delaware Railroad before reaching a partial cloverleaf interchange with US 113 (Worcester Highway). After passing over MD 575 (Worcester Highway), the old alignment of US 113, with no access, the state highway becomes divided with a narrow guardrail median barrier. MD 90 continues east through Ocean Pines, where the highway has a diamond interchange with MD 589 (Racetrack Road) and passes over Ocean Parkway within that community. The median barrier ends and the state highway becomes an undivided highway again immediately before crossing the St. Martin River on a long bridge. A median returns right after the bridge ends at Isle of Wight, where MD 90 has an at-grade signalized intersection with St. Martins Neck Road and the entrance to Isle of Wight Nature Park. MD 90 becomes undivided again for the Assawoman Bay Bridge over the Assawoman Bay. After that bridge, the state highway expands to four lanes with a Jersey barrier for a short distance before its terminus at a signalized intersection with MD 528 (Coastal Highway) at 62nd Street in the Midtown section of Ocean City. MD 90 serves as an access route to the northern part of Ocean City and sees heavy traffic