MP: 37.96 Location: SR 21 and I-90, Adams Cty Reassurance shield after I-90 MP: 40.15 Location: SR 21 and Rosenoff Rd, Adams Cty SR 21 turns onto Rosenoff Rd and jogs with it briefly MP: 41.25 Location: SR 21 and Rosenoff Rd, Adams Cty SR 21 turns off of Rosenoff Rd and we get this … Continue reading State Route 21, I-90 to SR 28