Kansas City, MO – Reconstruction on Interstate 70 and other thoroughfares will affect traffic through Sunday night. Crews will close 670 through the downtown loop. Traffic will be rerouted to 70 on the north side of the downtown loop. Also, the westbound I-70 exit ramp to Little Blue Parkway will be closed. Starting Saturday morning, the Route 7 entrance ramp to westbound 70 will be closed through mid-October.