Soon afterward the road is lined on the north by the buildings of the main Massachusetts Institute of Technology (MIT) campus. A grassy median is introduced along this stretch, and the road crosses under Massachusetts Avenue (Route 2A), with ramps providing limited interchange options - due to the extremely low clearance of 9 ft (2.74 m), all trucks and buses must detour via the ramps.
The road is bordered by buildings of the main Massachusetts Institute of Technology (MIT) campus, a grassy median is introduced along this stretch, and the road crosses under Massachusetts Avenue (Route 2A), with ramps providing limited interchange options - due to the extremely low clearance of 9 ft (2.74 m), all trucks and buses must detour via the ramps.