State, U.S., and interstate highways are valid routes except for restrictions listed on the bridge embargo, pavement restriction, road conditions (511ia.org), and vertical clearance maps.
Check with local officials when traveling on county roads or city streets for bridge embargo, detour, road embargo and vertical clearance information.
Zoom in to the map to see restricted route details for each city and county.
Map Key
County Route Restrictions | ||
---|---|---|
All restricted | Some restrictions | No restrictions |
![]() |
![]() |
![]() |
County/City Routes | ||
---|---|---|
Restricted routes | No restrictions | Check with local contact - not reported |
![]() |
![]() |
![]() |