"We thank motorists for bearing with us while we fine-tuned our traffic management. The work will move to a different location (today), and we will continue with the contraflow arrangement to keep people moving."
The agency was "in the midst of roadworks season", he said, and drivers were being asked to be patient and courteous.
Road work south of Masterton will continue in to next week and work will also start north of Greytown, he said, "where the road surface is due a new lease on life".
"This work will cause some delays, and we ask that motorists allow extra time to enable journeys to remain stress-free."
Mr Owen said all planned roadworks in Wairarapa will be completed before Christmas, which "will mean easier journeys in the New Year on a safer, refurbished State Highway 2".