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Current traffic on US Route 20 in Iowa — accidents, roadworks and closures in real time.

Road status

Iowa (4)

US 20 westbound: Heavy traffic jam detected.

Between Exit 311: Grandview Avenue and Fremont Avenue and US 52 (Dubuque). Waze algorithms detect heavy traffic on this road segment. Expect 2 - min delays.

Traffic messageModerate

US 20 eastbound: Bumper to bumper traffic detected.

Between County Road K42 and IA 140; County Road K64 (near Moville). Waze algorithms detect bumper-to-bumper traffic on this road segment. Expect 10 - min delays.

Traffic messageModerate

US 20 eastbound: Heavy traffic jam detected.

Between US 52 and Exit 311: Grandview Avenue and Fremont Avenue (Dubuque). Waze algorithms detect heavy traffic on this road segment. Expect 2 - min delays.

Traffic messageCritical

US 20 eastbound: Road closed.

Between Exit 313: IA 946 and US 61 (Dubuque). The road is closed due to road construction work. A detour is in operation. Follow the Iowa DOT-recommended detour around the closure. See map for detour(s) . There is a height limit in effect . Height limit 15'5" . Until September 25, 2026 at about 3:00PM CDT. Full schedule below: • September 17, 6:00AM - September 25, 3:00PM Comment: Manchester RCE (800-262-5146) - Dubuque County **Road will be open from 3PM to 6PM on Weekdays**

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