Central Bucca Bridge Replacement
Doyle Civil & Earthmoving were contracted to replace a bridge at Central Bucca, north-west of Coffs Harbour.
About this Project
This project required that we maintain traffic flow during the replacement of the old damaged wooden bridge. We had to erect a temporary steel bridge to manage this requirement however prior to the works commencing on site the tadpoles of a very rare and endangered frog were discovered in a nearby billabong. This discovery resulted in a very delicate relocation program where we worked with the EPA and Fisheries.
The operation involved lowering the water temperature of the creek with ice blocks! The theory here being that the colder water would make the tadpoles essentially go to sleep which allowed us to net the animals without causing stress to the animal and relocate them to a safer location downstream of the works.
Once the temporary diversion was in place, we had the task of demolishing the old bridge across a live Class! Waterway! This challenge was met head-on and executed without a single environmental or safety incident and a very happy Client.
The bridge construction itself consisted of bored mini piles with precast stitched headstocks and precast concrete girders with a cast insitu concrete deck. The approach earthworks and road tie-in works as well as the temporary bridge removal were also completed by us.
The job was completed on time and within budget.