CTI completed a project for Tennessee American Water (TAW) providing design, permits, easements, and construction phase services for 1,800 linear feet of 30-inch waterline to bring water from a connection at TAW’s Water Treatment Plant on the south side of the Tennessee River to a connection on the north side of the river. CTI and TAW had to consider the most cost-effective way to cross 1,400 linear feet of the Tennessee River. This included what materials should be used to anchor the pipe in place with a fast-moving current, the optimal location for the new pipe without disturbing multiple existing sewer and water pipes, and not disrupting major navigational traffic on the river.
The trench for the 1,400 linear feet of waterline in the river was pre-drilled using a barge and drilling template to accurately place explosive charges to blast the riverbed rock prior to clamshell excavation. Excavated materials were side cast, except in the 550 LF of navigation channel, where the materials had to be loaded onto a barge, hauled away during construction, and then later returned for backfill after pipeline installation, to comply with COE regulations.
Client
Tennessee American Water
Project Cost
$3.2M
Funding
Local
CTI Personnel on project
Ken Price, PE
Jerry Hightower, PE
CTI Engineers has been providing practical, but innovative, solutions to engineering challenges using nature’s inspiration to enhance and protect the natural world since 1991.
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