AMP: 40 Location: I-70 and Main St, Richfield Reassurance shield after the business loop split. AMP: 38 Location: I-70 and 1300 S, Richfield In a mile, the business loop will rejoin. AMP: 38 Location: I-70 and 1300 S, Richfield SR-120 rejoins as well, having run concurrent with I-70 Business for its entire length. AMP: 37 … Continue reading Interstate 70, I-70 Bus/SR-120 to I-70 Bus/SR-120