Known as Southeast Boulevard, the state highway runs 4.17 miles (6.71 km) from Interstate 695 (I-695) in Rosedale east to Back River Neck Road near Essex.

I-695 toward Towson and MD 702 toward Essex form the mainline of the interchange while I-695 toward Glen Burnie forms the stem of the T. Within the interchange, MD 702 crosses over Amtrak's Northeast Corridor railroad line and Northeast Creek, a tributary of the Back River that receives Stemmers Run.

The state highway heads southeast into Essex as a four-lane freeway through a partial cloverleaf interchange with MD 150 (Eastern Boulevard).

[1][2] MD 702 continues southeast as a six-lane controlled-access boulevard on which trucks heavier than 5 short tons (4,500 kg) are prohibited.

The roadway continues south as Back River Neck Road, a two-lane undivided county road that leads through a forested area to Rocky Point Park and Essex Skypark at the southern end of Back River Neck.