City of Sioux Falls installing Trap Bag system ahead of potential flooding – KSFY

City of Sioux Falls installing Trap Bag system ahead of potential flooding - KSFY

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SIOUX FALLS, S.D. (KSFY) – Thursday night the Sioux Falls Public Works team has found a new system that may just keep those flood waters out of neighborhoods. Work has started to build a temporary levee in one south Sioux Falls neighborhood.

Work is underway near Philips Avenue and Twin Oaks Road just south of Tomar Park and the Big Sioux River.

City installing temporary levees near Minnesota Avenue and Lotta Street

This neighborhood was completely under water just a week ago and now the city is installing a barrier system with more than 800 tons of sand. Its called the Trap Bag system.

The city went to work immediately after we were made aware of the potential for flooding impacts again and identified this neighborhood as one that may need some additional protection, Principal Engineer with Sioux Falls Public Works, Brad Ludens said.

“It will remain to be seen if those expectations can hold out. The big variable in this is any future weather we have come through,” says Minihan.

Its a barrier that is used in place of making sandbags for flood protection. Its been a popular barrier thats been used many times in other places known for flooding, but will this system hold out the water?

Based on the forecast from the National Weather Service and the river modeling information that we have we believe that these will be sufficient for any flood waters that we may see, Ludens said.

Each bag is filled with sand from the top that are connected into 50 foot sections that are two foot tall. This barrier will be 2,100 feet long.

“The state, just like I do in my department, just like residents should do is be prepared for any eventuality,” says Minihan.

The event that happened last week happened very quickly and we didnt have the opportunity to react like we are able to for this event so certainly theyre concerned and were responding to provide protection as much as we can, Ludens said.

They’re paying close attention to the Big Sioux going forward, and especially what’s happening north of Sioux Falls.

If youre stacking sandbags it would take hours and hours to make sure they were stacked properly and water didnt get through.

Officials in Union County say flooding has been a major concern not just over the last week, but this entire season.

“It just saves a massive amount of time, it saves labor, people dont get out here and get injured they dont get exhausted. Right now weve got a couple hundreds of feet up with just one man and a man on a bobcat,” Waid said.

Minihan says they will be putting out a call for volunteers this coming weekend to help fill sandbags.

If this system does not work the city does have another way they plan to respond. This project should be completed by Friday before the river crests Sunday.

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Posted in Sioux Falls