City using 'no dig' technique to repair infrastructure - Toledo News Now, Breaking News, Weather, Sports, Toledo

City using 'no dig' technique to repair infrastructure

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For repairs, a bladder device gets wrapped with a fiberglass mesh material and very sticky adhesive. It then gets placed into the line and inflated. After a couple hours, the material makes a strong bond to repair the line. For repairs, a bladder device gets wrapped with a fiberglass mesh material and very sticky adhesive. It then gets placed into the line and inflated. After a couple hours, the material makes a strong bond to repair the line.
TOLEDO, OH (Toledo News Now) -

The city of Toledo is now using a new technique to make repairs to its aging infrastructure, without having to dig a deep hole to send workers in to make repairs.

On Thursday, just a few blocks away from the massive sinkhole incident at Detroit and Bancroft, crews with Sewer and Drainage Services were making repairs to a storm water line, which caused a minor cave-in, affecting small sections of sidewalk and curbs.

"That could develop into a situation like what happened down the street at Bancroft and Detroit, where it was a major cave," said Kelly DeBruyn, manager of Sewer and Drainage Services.

For minor repairs, crews are using a "no dig" technique, using a bladder device which gets wrapped with a fiberglass mesh material and very sticky adhesive. It then gets placed into the line and inflated. After one to three hours, the material makes a strong bond to repair the line.

"We can use this in situations where there's a cracked pipe, there are leaking joints, there's a small hole. We can push it into place and inflate the bladder without doing any digging," said DeBruyn.

According to DeBruyn, it's helping to save time and money.

"We can repair a pipe in a third of the time and for a third of the cost, and it's a lot safer," she explained.

There's still some danger involved because a confined space technician is needed to complete the job, but it keeps workers out of a trench.

"The longer time you spend in the hole, the more chance someone is going to get hurt," said DeBruyn.

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