Location: Colfax Ave and Federal Blvd, Denver US-287 will finally split from I-70 Business in half a mile as we pass over I-25. There will be no signage at the junction Location: Colfax Ave and Federal Blvd, Denver SH-88 South will begin here and take over Federal Blvd South of Colfax, while US-287 will take … Continue reading Interstate 70 Business, I-25/US-6/US-85/US-87 to US-287/CO-88