State, U.S., and certain city/county roads identified on the map below are valid routes except for restrictions listed on the bridge embargo, pavement restriction, road conditions (511ia.org), and vertical clearance maps. Not valid on the interstate system.
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 | |||
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| All restricted | Some restrictions | Not reported | No restrictions |
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| County/City Routes | ||
|---|---|---|
| Restricted routes | No restrictions | Check with local contact - not reported |
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| Restricted bridges | Non-restricted bridges | Check with local contact - not reported |
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