State gateway
Mississippi Gateway and Western Approach
Future Route 20 region for the western gateway into the broader corridor.
Mississippi Gateway and Western Approach
This is the legacy bridge page for the Mississippi-side western gateway into the broader Route 20 corridor.
Why this page still matters
Now that Iowa is live, this page works best as the handoff explanation between the older Illinois build and the newer Iowa state layer. It keeps the Upper Mississippi crossing readable without pretending this bridge page is the main gateway anymore.
Best ways to use this handoff now
Planned
Route continuity
Clearer continuity for travelers moving through the Mississippi-side western gateway.
Planned
Region-first planning
A stronger way to understand this part of Route 20 before choosing towns, segments, or trips.
Planned
Fuller corridor map
A broader Route 20 map that feels organized by travel shape, not just geography.
Best pages to use now
Current Illinois gateway
Illinois
Use the Illinois state page if you want the current west-side Illinois build before the river crossing.
Current Iowa gateway
Iowa
Continue into the live Iowa state layer if you want the current western chain after the crossing.
Current guide
Iowa Driftless and Upper Mississippi Approach
Use the handoff region if you want the first Iowa corridor layer from the crossing side.
Current guide
Route Overview
See how the full corridor structure now connects across the Mississippi crossing.