I-29 Iowa Road Conditions

I-29 crosses 152 miles of Iowa, between the Missouri line and the South Dakota line. That is 20% of I-29's 751 miles.

Inside Iowa it meets I-80.

By mile marker, I-29 passes Sioux City 148. It is the only city on this stretch that the mileposts name.

14 current reports along the route. The 8 most serious are listed below. Always check with the responsible state DOT before setting off.

• Lanes blocked

  I-29 NB: Right Lane Closed

  Right Lane Closed due to road construction. Working hours are 09:00 AM to 06:00 PM.

  I-29 NB • IA • Until Oct 15, 6:00 PM Details

• Lanes blocked

  I-29 NB: Entrance Ramp Closed

  Entrance Ramp Closed due to road construction. Working hours are 08:00 AM to 05:00 PM.

  I-29 NB • IA • Until Nov 2, 5:00 PM Details

• Lanes blocked

  I-29: Between Exit 135: County Road D51 and Exit 141: 1st Street and Sioux Gateway Airport (near Sioux City). Both shoulders…

  Between Exit 135: County Road D51 and Exit 141: 1st Street and Sioux Gateway Airport (near Sioux City). Both shoulders closed due to road construction work. A lane is closed intermittently. Until November 6, 2026 at about 6:00PM CDT. Full schedule below: • March 16, 8:00AM - November 6, 6:00PM Comment: Sioux City RCE (712-239-1367) - Woodbury County

  I-29 • northbound • IA • Until Nov 7, 12:00 AM

• Lanes blocked

  I-29: Between The Missouri State Line and Exit 1: IA 333; County Road J64 (near Hamburg). The left lane is closed due to road…

  Between The Missouri State Line and Exit 1: IA 333; County Road J64 (near Hamburg). The left lane is closed due to road construction work. There is a width limit in effect. Width limit 13'6". Until October 29, 2026 at about 4:30PM CDT. Full schedule below: • March 18, 9:00AM - October 29, 4:30PM Comment: Council Bluffs RCE (800-579-2719) - Fremont County

  I-29 • northbound • IA • Until Oct 29, 9:30 PM

• Lanes blocked

  I-29: Between Exit 112 and Exit 105: County Road E60 (1 mile south of the Onawa area). The right lane is closed due to road…

  Between Exit 112 and Exit 105: County Road E60 (1 mile south of the Onawa area). The right lane is closed due to road construction work. Until October 15, 2026 at about 6:00PM CDT. Full schedule below: • June 16, 7:00AM - October 15, 6:00PM Comment: Sioux City RCE (712-239-1367) - Monona County

  I-29 • southbound • IA • Until Oct 15, 11:00 PM

• Lanes blocked

  I-29: Between Exit 105: County Road E60 (near Onawa) and Exit 120: County Road E24 (1 mile north of the Onawa area). The…

  Between Exit 105: County Road E60 (near Onawa) and Exit 120: County Road E24 (1 mile north of the Onawa area). The right lane is closed due to road construction work. Until December 1, 2026 at about 6:00PM CDT. Full schedule below: • July 13, 8:00AM - December 1, 6:00PM Comment: Sioux City RCE (712-239-1367) - Monona County

  I-29 • northbound • IA • Until Dec 2, 12:00 AM

• Lanes blocked

  I-29: Left Lane Closed

  Left Lane Closed due to road construction. There is a weight limit in effect. Width limit 411 ft. Working hours are 09:00 AM to 04:30 PM.

  I-29 • IA • Until Oct 29, 4:30 PM Details

• Lanes blocked

  I-29: Right Lane Closed

  Right Lane Closed due to road construction. Working hours are 08:00 AM to 06:00 PM.

  I-29 • IA • Until Dec 1, 6:00 PM Details

Winter reporting is off for the season. Iowa DOT publishes segment-by-segment snow and ice conditions from October 15 to April 15; outside that window the feed changes only as needed. Our own forecast below runs year-round.

Conditions are entered by Iowa DOT maintenance staff and describe what is on the pavement, not the forecast; what each term means is on the Iowa page. Always check with Iowa 511 before setting off.

Source: Iowa DOT, Iowa 511, CC BY 4.0.

NOAA 1991–2020 Climate Normals, from a weather station in Iowa. A dash is a figure that station does not report, not a zero.

Towns Along I-29 in Iowa

From Glenwood to Sioux City, with the position of each town measured along this stretch itself — counted from the Glenwood end, not from a state milepost, so it will not match the numbers on the signs.

1. 34 mi Glenwood 4.0 mi off the road
2. 49 mi Council Bluffs
3. 54 mi Carter Lake 1.4 mi off the road
4. 77 mi Missouri Valley
5. 111 mi Onawa 1.8 mi off the road
6. 128 mi Sloan
7. 141 mi Sergeant Bluff
8. 148 mi Sioux City

Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.

Related Roads

I-29 in Iowa Road Weather FAQ

Is Interstate 29 in Iowa closed right now?

No full closures are reported on I-29 in Iowa as of Oct 8, 2026 10:47 PM CDT. 14 lane closures, roadworks or restrictions are in force. They are listed under closures and road blocks on this page.

What are I-29 in Iowa road conditions today?

The map on this page colors the route along I-29 in Iowa by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Oct 8, 2026 10:03 PM CDT. Right now temperatures run from 68°F to 73°F and the strongest wind is 10 mph.

Where are Iowa road closures reported officially?

Iowa's official traveler information service is Iowa 511, at 511ia.org, and it is where closures and restrictions are reported.

How often does Iowa DOT update winter road conditions?

Iowa DOT reports the winter condition of each stretch of state highway from October 15 to April 15; crews update a report every two hours or as conditions change, and the feed this page reads refreshes every 10 minutes. The conditions are entered by maintenance staff and describe what is on the pavement, not a forecast; this page shows the current report for I-29 in Iowa beside our own road-surface forecast.

Are there live traffic cameras on I-29 in Iowa?

Yes. This page shows 6 live views on I-29 in Iowa from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.

How often are I-29 in Iowa road conditions updated?

The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.