Motorists travelling on State Highway 29 in the lower Kaimais are being warned to expect delays as work on the Ruahihi Bridge begins today.

Bridge expansion and joint replacement work commenced at 7am today and will reduce traffic on the stretch of highway to a single lane for up to five days while work is completed reports NZ Transport Agency.

Motorists are being advised of roadworks on SH29 in the lower Kaimais starting today. Photo: File.

Traffic will be managed by a stop/go system from 7am to 6pm daily. Outside of these times there will a traffic light control with a night watchman on site.

Speed is reduced to 30km/h at all times and road users are being told to expect delays of up to three minutes through the site.

NZTA expects works to end at 5pm on Friday, August 2.