Culvert repairs begin Nov. 13 on SH-45 in Nampa

NAMPA - The Idaho Transportation Department will begin roadside work Nov. 13 to repair the Elijah Drain culvert beneath State Highway 45 (12th Avenue) near West Dewey Avenue.

SH-45 will remain open throughout construction. Traffic impacts are not expected until mid-December when crews start working along the shoulder. Drivers should expect short lane shifts or brief flagging operations as needed. Most traffic impacts will occur at night to reduce delays for daytime travelers.

Nearby businesses will remain open and accessible during construction, and no driveway closures are planned.

The work will protect the roadway structure and ensure SH-45 continues to serve the growing Nampa community safely. Construction is expected to continue through spring 2026.

Drivers should watch for crews and equipment, obey posted signs, and slow down when traveling through the work zone.

For real-time traffic updates, visit 511.idaho.gov or use the Idaho 511 mobile app.