Bethlehem Boulevard was built with four interchanges. The western terminus of the highway was a trumpet interchange with Tin Mill Road (now Riverside Drive) where the mainline continued northwest as Dundalk Avenue across the drawbridge. Bethlehem Boulevard had a cloverleaf interchange with the Peninsula Expressway that featured a wide split in the median. East of the Peninsula Expressway interchange was a partial interchange with Wharf Road that offered access from Wharf Road to and from the west. The fourth junction was a partial interchange with MD 151 that allowed access between Bethlehem Boulevard to the west and MD 151 to the north. Eastbound Bethlehem Boulevard continued east to MD 20 (North Point Road). When MD 695 (now I-695) was completed as a two-lane freeway on a viaduct parallel to Bethlehem Boulevard from Edgemere to the Key Bridge in 1977, the only changes to the interchanges were two pairs of ramps from the west at the Peninsula Expressway interchange and from the east at the MD 151 interchange.