Design and Construction of Army, Winterbourne and Mooraback Bridges

Summary and scope

This Tender W21-67 Design and Construction of Army, Winterbourne and Mooraback bridges in the Walcha Council local government area. The scope of works includes: • Demolition and removal from site of the all existing timber bridges. • Design and construction of new replacement reinforced concrete bridges at the three nominated locations; • Design and construction of bridge approaches for the replacement bridge at the three nominated locations; and • Provision of all environmental, safety, quality and traffic management as per the requirements of the Contract. The general requirements for the new replacement bridges are as follows: Army Bridge (ID:5507) - Niangala Road • 4.2m wide bridge at a similar vertical and horizontal alignment to the existing; • Amended sealed road approaches to suit the revised alignment, width and other provisions such as edge barriers and terminals up to 80m in each direction. • Waterway area to be the same or greater than provided by the existing timber bridge; • bridge design shall comply with AS5100, SM1600 loading and will be capable of carrying AB Triple freight efficient vehicles with NSW Higher Mass Limits. • Road design shall comply with Austroads and relevant Transport for NSW (TfNSW) Supplements. Winterbourne Bridge (ID:6214) – Winterbourne Road • 4.2m wide bridge at a similar vertical and horizontal alignment to the existing; • Amended sealed road approaches to suit the revised alignment, width and other provisions such as edge barriers and terminals up to 50m in each direction. • Waterway area to be the same or greater than provided by the existing timber bridge; • bridge design shall comply with AS5100, SM1600 loading and will be capable of carrying AB Triple freight efficient vehicles with NSW Higher Mass Limits. • Road design shall comply with Austroads and relevant TfNSW Supplements. Mooraback Bridge (ID:5414) – Mooraback Road • 4.2m wide bridge at a similar vertical and horizontal alignment to the existing; • Amended sealed road approaches to suit the revised alignment, width and other provisions such as edge barriers and terminals up to 50m in each direction. • Waterway area to be the same or greater than provided by the existing timber bridge; • bridge design shall comply with AS5100, SM1600 loading and will be capable of carrying AB Triple freight efficient vehicles with NSW Higher Mass Limits. • Road design shall comply with Austroads and relevant TfNSW Supplements.