There are lane restrictions on westbound Interstate 80 at 42nd St. because of the investigation into an accident earlier Thursday morning.
KFAB's Lucy Chapman in "Timesaver Traffic" suggests a detour from 42nd St to L St, and then to 60th or 72nd Sts. where you can reacquire I-80 WB.
There's also southbound JFK/75 into Bellevue to westbound Nebraska Highway 370, then west to I-80.
For some drivers, Dodge St. or Center St. from I-480 is an option to get west.