Motorists are advised of changed traffic conditions from next week on Big River Way to carry out safety improvement work at a number of locations near Ulmarra and Tyndale.

Work commenced on Tuesday April 6 on a two kilometre section of road near Hoades and McLachlans lanes, south of Ulmarra, to repair the road surface and carry out line marking.

Work will also be carried out about two kilometers north of Ulmarra to remove the southbound overtaking lane, repair the road surface and carry out line marking.

Crews will work on a three kilometre stretch of road at Tyndale to remove the northbound overtaking lane, carry out road surface repairs and line marking.

Work will be carried out from 7am to 6pm on weekdays and from 8am to 1pm on Saturdays, and is expected to be completed over a two week period, weather permitting.

Traffic control and a reduced speed limit will be in place for the safety of workers and motorists, with delays of up to five minutes at times.

Motorists are advised to allow extra travel time, drive to the conditions, and follow the directions of signs and traffic control.

Transport for NSW thanks motorists for their patience during this time.

For the latest traffic updates download the Live Traffic NSW App, visit livetraffic.com or call 132 701.