Yesterday the residents of Wollun Road were advised in writing that the Wollun Road Bridge would be closed from Monday, May 13 for three months and to use alternate routes during this time.

By mid-morning today Walcha Council's director of engineering, Dylan Reeves advised the Walcha News that a bypass would be installed.

Kentucky resident Margaret Yarnold said she found out about the closure through her friend who received a letter from Council and made calls to her local MP, the local media and Council to complain.

"To use an alternative route would mean adding an extra 70 kilometres to my daily commute," she said.

"I'm not the only one either. I know of at least another two people who would have been in the same position."

Complaints were also shared on social media on Monday night from residents in surrounding areas.

Mr Reeves said the short notice was the result of the Council attempting to get the job done as soon as possible with contractors who had a window in their schedule.

"We understand the notice was very short and following community feedback we immediately decided to install a temporary bypass for light vehicles," Mr Reeves said.

"We had identified Wollun Road Bridge as having alternate routes, and we did not initially think a bypass would be necessary but have since reversed our decision to accommodate community concerns."

Work on the bypass of the old timber single lane Wollun Road Bridge will commence next week and construction on the new concrete dual load replacement bridge will begin when this is complete.

"Works will begin with the installation of a light vehicle bypass track, followed by the removal of the existing timber bridge," Mr Reeves said.

"The new bridge components are primarily constructed off-site, in a pre-cast facility and transported to the site - increasing the efficiency of the installation.

"Approaches to the bridge will be widened to accommodate the two-lane structure, making the bridge safer and able to accommodate heavy vehicles."

Mr Reeves advised only minor inconveniences would be experienced throughout the bridge replacement.

"We would like to ask drivers to pass through the site with care and consider the safety of those working on the bridge," Mr Reeves said.

Since 2015, Walcha Council has replaced eight timber bridges and rehabilitated four timber structures with another six still to do - Niangala Road Bridge is next followed by Lakes Road Bridge and Old Brookmount Bridge (funded through Fixing Country Roads) and Glen Morrison Road Bridge, Moona Plains Road Bridge and Englefield Road Bridge (funded through the Bridges Renewal Program).

"On the completion of this work Council will have achieved the replacement of 15 timber bridges with the assistance of state and federal Government," said Mr Reeves.

"In addition to these bridge replacements, the Bergen Bridge was also widened to improve safety and accommodate higher productivity vehicles."