Extreme Heat Causes I-29 to Buckle Near Tea Exit

Late Thursday afternoon reports surfaced on social media about a portion of I-29 buckling due to the heat. Google Maps with real time traffic seemed to confirm a slow down / stop near exit 73 - the Tea Exit. It appeared to be the southbound lane affected. (pictured)

Google real-time traffic map, June 19, 2025

What causes a road to buckle?

High temperatures can cause concrete to expand. When the pressure becomes to great the surface can "buckle" or force its way upward. Thermal expansion can also occur in extreme cold temperatures.

These incidents can cause damage to vehicles.

Unfortunately, this may not be the only incident as we head into an even hotter weekend. According to the National Weather Service, Sioux Falls Office, Excessive Heat Warnings are in place from Friday at 12:00PM to Sunday evening at 9:00 PM.

Sioux Falls forecast:

Friday

Sunny and hot, with a high near 98. Heat index values as high as 105. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

Friday Night

Mostly clear, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

Saturday

Sunny and hot, with a high near 102. Heat index values as high as 105. South southwest wind around 15 mph, with gusts as high as 30 mph.

Saturday Night

Mostly clear, with a low around 79. South wind around 15 mph, with gusts as high as 25 mph.

Sunday

Sunny and hot, with a high near 100. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph.

Plenty of fluids and breaks if outdoors are key this weekend. Stay safe.

10 Deadliest Creatures in US: South Dakota Has Lots of Them

The deadliest animal in the U.S. isn’t the alligator or bear or even the mighty shark. In fact, the answer may surprise you.

It may also surprise you how many of these creatures can be found in South Dakota.

Here's the top 10:

Source: Report: Extreme Heat Causes I-29 to Buckle Near Tea Exit

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