Work is expected to start Sept. 26 at sections of the mainline Mississippi River levee at Buck Chute and Lake Albemarle slated for flood-related repairs, a release from the U.S. Army Corps of Engineers said Monday.

In August, Thibodaux, La.-based Phylway Construction LLC won a $3.1 million contract to shore up both sections, about seven miles apart. The work will be done simultaneously.

Crews will build a 1,700-foot berm with 30 relief wells at Buck Chute, west of Eagle Lake. A barrier is to be built across about 300 feet of weak landside levee farther north at Lake Albemarle.

Sand boils found at Buck Chute weeks before the river crested at a record height in Vicksburg and a small landslide on the levee’s land side at Lake Albemarle forced last-minute fixes at each spot. The levee system spans 163 miles in the zone maintained by the Board of Mississippi Levee Commissioners.

The river crested on May 19 in Vicksburg at 57.1 feet, or 14.1 feet above flood stage, and nine-tenths of a foot higher than the 1927 flood.