The road widening, being undertaken by Dubbo City Council, will create a four lane divided carriageway over the crossing. 

The widening will be done in conjunction with John Holland Group's work to install boom gates and new signals at the crossing. The work is expected to substantially improve safety.

Boom gates have been long awaited at the crossing.

In 2013 an employee in Wheelers Lane said the gates were needed as people tried to cross when a train was in the vicinity "all the time".

"It happens almost every morning," he said at the time.

"One person does it and everyone thinks its okay and they just follow. It's an accident waiting to happen."

Council's manger works and services Ian Bailey said the road widening would ensure there was a continuous four lane road linking the Mitchell Highway and the Golden Highway.

"Currently, through traffic is required to merge into a single lane in each direction at the crossing. Widening the road to two lanes in each direction will improve traffic flow and reduce the length of queues and delays at the level crossing," Mr Bailey said.

The upgrade will also include new concrete footpaths, an on road cycleway, centre medians and improvements to the street lights.

"To undertake the project Wheelers Lane will be closed to through traffic from Douglas Mawson Road to Birch Avenue," Mr Bailey said.

"There will be two stages of road closures; one where only south bound traffic is affected immediately, followed by a period of up to four months were the road will be closed in both directions."

Mr Bailey said council was working with the local businesses in the immediate vicinity to ensure they could be accessed during the construction period.

The first road closure will start Tuesday April 26. The road is expected to be completely reopened in late August when the work is completed.