Drivers along Custer Road can expect ongoing lane closures through 2026 as a major water main replacement project moves forward in southern Plano and into Richardson.

The North Texas Municipal Water District, or NTMWD , in partnership with the city of Plano, is working to replace an aging 30-inch pipeline, originally installed in 1975, with a new 36-inch water main to boost service reliability and capacity.

What you need to know

Lane closures along Custer Road are expected to continue through February during the main construction phase.

Crews will then begin testing the new water line, and final cleanup and concrete repaving work is expected to wrap up in October 2026.

The work will affect sections of Custer Road from Renner Road, just past the President George Bush Turnpike, to 1

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