Extension
Sioux City, IA to near Mankato, MN

Suggested changes:

• Duplex US 77 with US 75 from South Sioux City, NE to Le Mars, IA.
• Designate US 77 along IA 60/MN 60 from Le Mars, IA to US 169 near Mankato, MN.
• Existing US 77 from I-129/US 20/US 75 to I-29 could become a business route or be turned back.

Rationale:  Although a pair of state routes, the IA 60/MN 60 corridor is a major inter-city corridor within Iowa and Minnesota.  Along with US 169, it serves as a shortcut from the Twin Cities to I-29 and points southwest, and is a designated NHS corridor.  Given that US 77 currently ends in Sioux City, the IA 60/MN 60 corridor makes for a logical extension.  US 77 would duplex with US 75 up to Le Mars, IA, and then would take over the IA 60/MN 60 corridor up to US 169, where it would then terminate.

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