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6-Clean Water Shreveport

Posted on: June 27, 2017

City of Shreveport Uses Cutting-Edge Sewer Replacement Technology

The City of Shreveport Department of Engineering & Environmental Services, in conjunction with the Department of Water and Sewerage, is about to become one of the largest users of trenchless technology in the nation, according to Barbara Featherston, Director of Water and Sewerage.

Engineering and construction work to repair or replace underground sewer lines and infrastructure is currently underway by the City of Shreveport. This work is being done as part of the federally-mandated Consent Decree and will eventually result in improved sewer service and cleaner water in our creeks, bayous and rivers.

Because of the time-sensitive deadlines mandated by the Consent Decree, as well as the need to save money, the City is implementing wherever possible an innovative repair method called CIPP (cured in place pipe) lining. This trenchless technology also minimizes the need to cut down trees in some areas and reduces conflicts with other utilities.  Other trenchless methods, such as pipe bursting, may also be used when appropriate.

CIPP is a method for restoring older pipe lines with minimal digging in streets and on adjacent property. A piece of durable lining is installed inside the old pipe. It is a safe and environmentally sound solution to replace and repair aging pipes. Previously, nearly all underground work in Shreveport had been completed using a traditional “dig and replace” open-cut technique.

“When comparing the cost of trenchless technology to traditional open-cut, there is a cost savings of roughly $250 per linear foot,” said Mayor Ollie Tyler. “With the amount of work taking place throughout Shreveport during Phase 1 of five phases to meet the Consent Decree, we’re looking at a savings of at least $100 million utilizing trenchless technology during this phase alone.”

“On average, one crew using an open-cut technique can repair or replace 75 linear feet of pipe per day, or approximately 375 feet per week,” said Featherston. “A single crew utilizing CIPP trenchless technology can complete 2,500 to 3,000 linear feet per week, which is over six times faster than open-cut.”

“This technology is a win-win for Shreveport’s trees,” said Donna Curtis, Executive Director of Shreveport Green. “Too often our neighborhoods experience a dramatic loss of tree canopy during this type of project. As a consequence citizens lose the benefits trees provide:  cleaner air, higher property values, cooler temperatures, lower energy costs, reduction of high-frequency noise, assistance with flooding issues, and a restorative environment! Trees are great!”

Residents who have questions can call the Clean Water Shreveport program number at 318-673-6375, or for water or sewer-related emergencies, call 318-673-7600.

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