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.

16 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 Sep 24, 6:00 PM Details

• Lanes blocked

  I-29 NB: Exit Ramp Closed

  Exit Ramp Closed due to night time construction work. Working hours are 08:00 PM to 06:00 AM.

  I-29 NB • IA • Until Sep 11, 6:00 AM Details

• Lanes blocked

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

  Between Exit 135: County Road D51 and Exit 141: 1st Street and Sioux Gateway Airport (near Sioux City). The left shoulder is closed due to road construction work. A lane is closed intermittently. Until September 26, 2026 at about 6:00PM CDT. Full schedule below: • March 16, 8:00AM - September 26, 6:00PM Comment: Sioux City RCE (712-239-1367) - Woodbury County

  I-29 • northbound • IA • Until Sep 26, 11:00 PM

• 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 September 24, 2026 at about 4:30PM CDT. Full schedule below: • March 18, 9:00AM - September 24, 4:30PM Comment: Council Bluffs RCE (800-579-2719) - Fremont County

  I-29 • northbound • IA • Until Sep 24, 9:30 PM

• Lanes blocked

  RAMP: US-20W TO I-29: At Entrance ramp from US 20 W; US 75 S. The entrance ramp is closed due to road construction work. A detour is in…

  At Entrance ramp from US 20 W; US 75 S. The entrance ramp 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). Until September 18, 2026 at about 5:00PM CDT. Full schedule below: • June 2, 10:00AM - September 18, 5:00PM Comment: Sioux City RCE (712-239-1367) - Woodbury County

  RAMP: US-20W TO I-29 • southbound • IA • Until Sep 18, 10:00 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). Right…

  Between Exit 105: County Road E60 (near Onawa) and Exit 120: County Road E24 (1 mile north of the Onawa area). Right lane closed due to road construction work. Starting Monday at 8:00AM CDT until September 30, 2026 at about 6:00PM CDT. Full schedule below: • July 13, 8:00AM - September 30, 6:00PM Comment: Sioux City RCE (712-239-1367) - Monona County

  I-29 • northbound • IA • Until Sep 30, 11:00 PM

• Lanes blocked

  I-29 SB: Entrance Ramp Closed

  Entrance Ramp Closed due to road construction. Working hours are 10:00 AM to 05:00 PM.

  I-29 SB • IA • Until Sep 18, 5:00 PM Details

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 Sep 10, 2026 8:16 PM CDT. 16 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 Sep 10, 2026 7:33 PM CDT. Right now temperatures run from 81°F to 85°F and the strongest wind is 12 mph.

Where are Iowa road closures reported officially?

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

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.