Construction of a water line for irrigation along Barnwell Road in Johns Creek will necessitate overnight road closures beginning Nov. 27 and continuing until the work is completed, city officials announced.

To help accelerate construction of the Reuse Irrigation Main Line, Fulton County will increase working hours and close Barnwell to through traffic from 9 p.m. to 6 a.m., Monday through Friday, officials said. Residents will continue to have access to homes and subdivisions along the street. A temporary reduced speed limit of 35 mph is in place through the construction zone.

Fulton County also will reduce the road to one lane from 10 a.m. to 2 p.m., working during these daylight hours to avoid colder temperatures at night for concrete pours and to avoid the peak rush hours, including school drop-off and pick-up times, a Johns Creek spokesman said.

Johns Creek advises motorists to limit their use of Barnwell as construction continues through year’s end. “With limited room available to perform construction work, periodic lane closures along this road are required to install the pipe and conduit, which will create significant congestion,” according to a statement from the city.

The reuse line will be used for irrigation for churches, golf courses and Cauley Creek Park, officials said.