"There's no problems as far as we're concerned," he said. "I really don't see that there's a need."
Mr Owen said there would be temporary speed limits and traffic management in place while the improvements were undertaken.
"For the safety of drivers and our road crew, and to prevent damage to vehicles, we ask that drivers please stick to the temporary speed limit," he said.
"This work is likely to cause minor delays so please leave an extra few minutes for your journeys. We thank the public for their patience and understanding."
Mr Owen said the community and the Masterton District Council had been involved in discussions that had helped shaped the proposals, and the work was expected to cost about $131,000.
He said they had explored other options before the plan was finalised.
Work is expected to begin in late February.