Lot 2 Foreshore Drive, Singleton

Sewer Extension

Design Engineering (as “Wilkie”) was approached by a local developer to design a sewer extension that would service a newly planned subdivision of a beachfront lot in Singleton, WA. Design successfully overcame various challenges, given that it was already a well-established road with an existing sewer line.

Design had to design the sewer to conform to Water Corporation requirements, affected stakeholders needs and relevant standards while keeping the client costs reasonable. Being a long sewer reticulation for a five lot subdivision, Design was first tasked to ensure it was feasible. A preliminary design was used to calculate approximate construction costs for the client to determine if to go-ahead with the extension.

Design was then tasked with designing the sewer for approval. Regular discussions with the Water Corporation were maintained to ensure no future clashes were experienced with other developers and any concerns raised were dealt with at an early stage. Design sought and was successfully granted approval for a non-standard alignment for a portion of the extension. The design was formalised and approval sought and received from the Water Corporation and all affected stakeholders. This ensured all concerns were sorted before construction.

Design tendered to a range of contractors to ensure the client got the best price and quality and followed through as the construction engineers for the project. Design was able to achieve property connections to the lots allowing the subdivision to go ahead, in a cost effective manner that was compliant with the Water Corporation’s requirements.

For further details on services provided on Major Projects by Design please contact the Design team on (+61 8) 9421 9080 or email us at info@designeng.com.au.


Project Brief

Outcome

Design was successful in planning the design, seeking approvals and supervising the construction works to the satisfaction of regulatory authorities and the client. Sewerage services are now available to future lot owners.

Background

In the past, it had been impractical to service the lot and it had sat undeveloped. Due to a downstream extension it was now potentially worthwhile to complete the extension.

Project Objectives

The objective of the project was to service the lot to allow subdivision in a cost effective way and with sound engineering design so that the client could satisfy the WAPC sewerage conditions on the subdivision.

Challenges

The various challenges that arose from this extension included the established Singleton Beach Road from Norfolk Pine trees that required boring under, presence of fibre optic cable on the sewerage alignment, erratic power pole placement, an inconsistent path alignment
and an existing manhole connection point on a non-standard alignment. Additionally, the depth of the sewer had to be designed to enable the extension along Indiana Parade.

Our Approach

Design Engineering had to design the sewer to conform to Water Corporation requirements, affected stakeholders needs and relevant standards while keeping the client costs reasonable. Being a long sewer reticulation for a five lot subdivision, Design was first tasked to ensure it was feasible. A preliminary design was used to calculate approximate construction costs for the client to determine if to go-ahead with the extension.


Design was then tasked with designing the sewer for approval. Regular discussions with the Water Corporation were maintained to ensure no future clashes were experienced with other developers and any concerns raised were dealt with at an early stage. Design sought and was successfully granted approval for a non-standard alignment for a portion of the extension. The design was formalised and approval sought and received from the Water Corporation and all the affected stakeholders. This ensured all concerns were sorted before construction.

Design tendered to a range of contractors to ensure the client got the best price and quality and followed through as the construction engineers for the project. Design was able to achieve property connections to the lots allowing the subdivision to go ahead, in a cost effective manner that was compliant with the Water Corporation’s requirements.