The $865,000 project to replace the closed timber Glenyalla Road bridge crossing of Borambil Creek with a new, single lane, concrete structure will get underway when the contractor engaged by Liverpool Plains Shire Council (LPSC), Murray Constructions, takes possession of the site on 21 September. Work is expected to be completed by the end of 2020.
“Council was forced to close the old wooden bridge following damage when one girder collapsed and two failed due to splitting in the span on the Willow Tree side of the bridge. At the time the damage was suspected to have been caused by overloading,” said LPSC Mayor, Councillor Andrew Hope.
“Council engaged the Roads and Maritime Services’ (RMS) bridge unit to undertake core testing of the old bridge’s timber members to determine their condition as well as providing a cost estimate to repair it. The RMS recommended that 10 girders would need to be replaced and to meet current safety standards, new guardrails installed. It is estimated this would cost a minimum of $120,000 and would only extend the life of the structure for a maximum 30 years. There was no guarantee it would meet requirements for B-Double or other restricted access vehicles without load testing.
“Council then resolved to apply for a grant from the Federal Government’s Bridges Renewal Program and was successful in gaining 50% of the replacement cost for a concrete structure, built to current Australian standards, that provides unrestricted access for heavy vehicles and a useful life of at least 100 years. Council will contribute the remaining 50% cost of the project with funding received through the Roads to Recovery program.
“A Review of Environmental Factors and geotechnical investigation took place as part of the development process to prepare tender documentation for the project which will be undertaken as a design and construct contract,” he continued.
“Although Glenyalla Road only carried about 40 vehicles a day prior to the bridge closure, it is important to farming families, as a rural transport route and for those delivering to or collecting from properties enroute. The new bridge will reopen the route to through traffic and provide an asset with a long lifespan for those local people,” Councillor Hope concluded.