White House details erosion-control pilot, ditch repairs and box culvert work
June 13, 2023 | White House, Coffee County, Tennessee
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City stormwater staff gave the board a progress update on several maintenance and capital projects during the June 12 meeting.
Isaiah, presenting for the Stormwater Division, described a pilot erosion-control material called "Flexomat," which he said is a rollable matting containing concrete aggregates that allows grass to grow through the material. "Flexomat is a new product and it's sort of like a roll matting of sorts...It mimics straw matting, except it has concrete in it," Isaiah said, and noted installations on Pinson Road and Union Road where the product replaced sections where riprap had proved ineffective.
Staff said Flexomat can reduce repeated riprap deliveries and save labor; they did not provide exact unit prices. A board member asked about cost differences and maintenance; Isaiah said the price varies by roll width and length and that, in these installations, Flexomat likely reduced material and labor needs compared with repeated riprap trucking.
On ditch and pipe work, Isaiah presented a Greenway project where crews redefined the swale, discovered a failing pipe, open-cut and replaced it, then restored asphalt to re-establish positive drainage. He also described recurring debris and tree blockage behind Wendy's on Sage Road; the work involved cooperation with CEMC to remove trees in the right-of-way to restore flow.
On capital projects, staff reported that box culvert segments at Hobbs Drive are all but complete except one section and that Villages Court work was due to start the next day. Isaiah said Covenant Construction won the bid; the White House Utility District must move a water line that conflicts with the culvert work, and Piedmont may need to relocate a gas line on Villages Court. Materials are staged at 725 Industrial Drive and contract specifications require sealing box-joint seams as part of the inspection process.
Next steps: staff said contractors would address utility relocations and proceed with remaining culvert installs. The board took no formal separate vote on the projects at the meeting.
Isaiah, presenting for the Stormwater Division, described a pilot erosion-control material called "Flexomat," which he said is a rollable matting containing concrete aggregates that allows grass to grow through the material. "Flexomat is a new product and it's sort of like a roll matting of sorts...It mimics straw matting, except it has concrete in it," Isaiah said, and noted installations on Pinson Road and Union Road where the product replaced sections where riprap had proved ineffective.
Staff said Flexomat can reduce repeated riprap deliveries and save labor; they did not provide exact unit prices. A board member asked about cost differences and maintenance; Isaiah said the price varies by roll width and length and that, in these installations, Flexomat likely reduced material and labor needs compared with repeated riprap trucking.
On ditch and pipe work, Isaiah presented a Greenway project where crews redefined the swale, discovered a failing pipe, open-cut and replaced it, then restored asphalt to re-establish positive drainage. He also described recurring debris and tree blockage behind Wendy's on Sage Road; the work involved cooperation with CEMC to remove trees in the right-of-way to restore flow.
On capital projects, staff reported that box culvert segments at Hobbs Drive are all but complete except one section and that Villages Court work was due to start the next day. Isaiah said Covenant Construction won the bid; the White House Utility District must move a water line that conflicts with the culvert work, and Piedmont may need to relocate a gas line on Villages Court. Materials are staged at 725 Industrial Drive and contract specifications require sealing box-joint seams as part of the inspection process.
Next steps: staff said contractors would address utility relocations and proceed with remaining culvert installs. The board took no formal separate vote on the projects at the meeting.
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