Soldiers Field Rd Cambridge St Single point location for I-90 Exit Single point location for I-90 Entrance Charles River Framingham/Worcester Line Framingham/Worcester Line Soldiers Field Rd Massachusetts Turnpike (EB) Massachusetts Turnpike (WB) Massachusetts Turnpike (WB) Massachusetts Turnpike (EB) Soldiers Field Rd Soldiers Field Rd Cambridge St Agganis Way Agganis Way B Design Speeds x Mainline: 70 mph x Ramps: 35 mph Concept Features C D E Recreate Back Bay U-turn Tracks within existing easement Potential future City of Boston yard location Interchange geometry is compact and mostly at-grade To Boston 2 Mainline Tracks to Remain BRIDGE STRUCTURE