Missouri American Water is completing the replacement of about 500 feet of a four-inch diameter water main in the 300 block of Jefferson Street from High Street to McCarty Street.
Twehous Excavating, the contractor for the project, estimates that the work will be complete in about two weeks.
The project will replace a water line that is more than 100 years old with a new section of eight-inch diameter pipe.
About 500 feet of pipe in the 200 block on Jefferson was replaced in December.
Portions of the parking lanes and the center lane will remain closed on High Street until the construction is complete.
The work is part of Missouri American Water's water main replacement program, designed to identify and replace water lines that are at the end of their useful lives.
Missouri American teams select pipeline replacement projects based upon their community benefits, including reducing water main breaks and improving the overall integrity of the water system in the area.
Missouri American officials said the company has invested more than $23 million in Jefferson City water system improvements during the past 10 years.
Industrial-Jaycee water main
work begins today
Beginning at 8:30 a.m. today, Missouri American Water and Twehous Excavatinig will begin installation of a new water main at the intersection of Industrial Drive and Jaycee Drive.
Work will then proceed to West Main Street and ultimately Hoover Road. Traffic lanes may reduce periodically.
Weather and construction progress permitting, this work should be completed by 5 p.m. Aug. 9.