WEBVTT

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- [Dr. Michael] The Corps of Engineers

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continues it's southern border
barrier construction work

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in Yuma, Arizona,

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just north of the Colorado River.

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- My name is David Vatt.

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I'm a quality assurance representative

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from Tucson, Arizona.

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This contract for the Yuma portion

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of the El Centro and Yuma project

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is five miles long.

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This area of the southwest

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is very, very silty and unstable.

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Just over the California border with us

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is a large area of sand dunes

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that's very popular for
recreational vehicles,

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and it's very fine,
almost like baby powder.

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This is an industrial sieve,

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they're using it to screen off

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any undesirable vegetative
debris, or rocks,

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to be placed in our conditioned soil.

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They wanna get a very clean mix

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to put back in the processor

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that they add moisture and the cement to

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for the backfill of the
over excavated footer.

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So a piece of equipment we have right here

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is a mobile processor.

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In the back here we have the hopper

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that has all the cement product dry in it.

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And the loader operator
will fill the native back up

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into the large hopper,

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it'll be processed with
water from the water truck,

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and come out the chute here at the end

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into our larger footer.

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So this is the final
conditioned soil product

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that they're processing here

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for our excavated footer.

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As you can see, it's just cement

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mixed in with the native
silty base that we have

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and a very small amount of moisture

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to get it to hold together.

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- [Dr. Michael] The
talented team of workers

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who make up Task Force Barrier

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use innovative, state
of the art techniques

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to provide creative solutions

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in a diverse project area.

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No matter what location
we're assigned a project,

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we're committed to building strong.

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Dr. Michael Izard-Carroll,
Task Force Barrier.