Sonar Device Testing Oak Ridge, Tenn., Sewer Lines

Measurements obtained from using the device can determine if sewer lines are partially or completely blocked.

by Knoxville News-Sentinel / March 24, 2015

(Tribune News Service) — Residents may be able to hear and even feel state-of-the-art technology that uses a sonar machine to inspect the city's sewer line system, and inspections began Monday in the east end of the city.

The acoustic sewer inspection machine emits a repeating series of tones that is similar to a musical scale and can be heard over long distances in open areas, according to a news release.

Those tones, while harmless, "are low enough in frequency that residents nearby may be able to feel, and in some instances, hear them."

Measurements obtained from using the sonar device can determine if sewer lines are partially or completely blocked. The new technology will reduce the need for using other machines to video sewer lines and will speed up inspections, according to the city.

Testing will continue for eight to nine weeks, depending on weather conditions and other factors.

Signs stating "Acoustic Sewer Inspection in Area" will be posted while crews are working in neighborhoods.

©2015 the Knoxville News-Sentinel (Knoxville, Tenn.) Distributed by Tribune Content Agency, LLC

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