Location: Whaleyville Rd and Ocean Gtwy, Worcester Cty Reassurance shield as MD 610 begins. Location: Whaleyville Rd and Old Ocean City Rd, Worcester Cty Just after that, we’ll approach Route 346 which is old US 50. Location: Whaleyville Rd and Old Ocean City Rd, Worcester Cty Follow 346 east to St Martin. Stay on 610 … Continue reading Maryland Route 610, US-50 to MD-346