Willoughby Stormwater Culvert
Client: Insituform Pacific Pty. Limited
End Client: Willoughby City Council
Project Details:
The Willoughby storm drain that require repair is a forty meter box culvert thats 1220mm x 1220mm. Before construction on the tunnel could begin the sandstone floor had to be levelled and three cubic meters of sandstone removed. The stainless steel reinforcement was tied into the existing sandstone invert with 12mm dowel bar. The floor was poured in two twenty meter sections to form a dry weather channel. Triaxial consulting were engaged for the structural design of the repairs to the existing soffit.
Works comprise of:
- Confined Space Entry
- Water Diversion
- Demolition
- Steel Fixing
- Concrete Pumping
The works were performed in a sensitive residential area, which required thoughtful planning and liaising with willoughby council and residents. The works were successfully competed with 100% safety record and met with all the design requirements.
Existing Tunnel.
The storm drain prior to work commencing
Over pumping
Formwork and screed
Stainless steel mesh over existing floor.
Steel mesh for reinforcing Concrete
Final pour from up stream
Soaking the concrete
Cross section between the two pours.
Final pour from down stream.
Replacement roof beams and support brackets.
Propped Beam