Missouri American Water has begun work on a project to replace about 400 feet of water main beneath Interstate 270 near Sappington Road at a cost of approximately $650,000.

Crews will work weekdays and Saturdays between 7 a.m. and 6 p.m. Traffic restrictions may be required on side streets, including Roanna Lane and Hausfel Court, during construction.

The company is replacing a water main that failed in August 2018 and snarled traffic on I-270. The new main will improve service reliability.

“When the main broke last summer, it created a real traffic nightmare for commuters on Interstate 270 for a few hours, though thankfully not many customers went without water,” said Matt Jaspering, senior project engineer.

The new main is being installed adjacent to the main that broke. It was deemed impractical to attempt to repair the existing main running beneath a major highway.

During construction, residents may experience water service interruptions, discolored water and/or lower-than-normal water pressure.

The project is expected to be completed by April 2019, weather permitting. Final paving is expected to be completed by summer. For more information, contact Missouri American Water at 866-430-0820.