Our engineers have a new detailed website at www.foundationengineering.com.au

John Colley

Senior Principal
Engineer CPEng

As founder of Fondex John’s reputation is well known throughout Western Australia and abroad. His broad experience provides the Foundation engineering Group with a depth of practical understanding in solving complex structural and civil problems.


He has been involved in many of Perth’s largest development projects, and his expertise ranges from soil retention and stabilization, piling and ground anchoring, microfine grout injection, post tensioning and precast, formwork and scaffolding design.

Ongko Sriono (Danny)

Geotechnical Engineer
B.Eng (Civil), CPEng Aust

Danny has over 9 years experience in civil and structural design, geotechnical engineering & traffic engineering. This includes the design of major port structures, timber and concrete bridges and detailed geotechnical investigations and analysis on a wide variety of projects.


His key skills include:

  • Structural Analysis and Design
  • Geotechnical Engineering
  • Traffic Analysis
  • Computing and IT
  • Port and Bridge Structures

His experience includes:

  • Simandou Iron Ore Project, Design Engineer
  • Shark Bay Salt, Design Engineer
  • RGP5 Iron Ore Terminal, Design Engineer
  • Fremantle Ports Berth Inspection, Structural Engineer
  • Brookfield Rail, Structural Engineer
  • API Project, Structural Engineer
  • Roe Highway Stage 7 Traffic Analysis, Traffic Engineer
  • Perth Domestic Airport (Paramics Model), Traffic Engineer
  • Mitchell Freeway Extension (from Hodges Drive to Burns Beach Road), Traffic Engineer
  • Great Northern Highway Package DP07, Design Engineer
  • Bunbury Port Access Road, Design Engineer
  • Australian Marine Complex, Geotechnical Engineer
  • Kwinana Switching Station, Geotechnical Engineer
  • Kelmscott Train Station, Geotechnical Engineer

William Crean

Geotechnical Engineer
B.Eng (Civil), Grad IE Aust

William is one of our most experienced Engineers.

His projects include:

Wheatstone LNG Project: Fly Camp

Compiled & submitted design package for various screwpile applications to Bechtel engineers for approval. Included extensive geotechnical design calculations to AS 2159, wind load calculations to AS1170.2, fabrication drawings and layout/connection details.


Perth City Link

Designed screwpiles to resist flotation of sink structure underneath Horseshoe Bridge in Perth City Centre. Design constraints included confined headroom, high water table and limited settlement criteria. Oversaw uplift load testing of installed screwpiles and reported on results.

Lakeside Shopping centre, Joondalup

Carried out site inspections and certification of formwork for the $300 million redevelopment of the Lakeside shopping centre by Lend Lease.

William’s key skills include:

Geotechnical Design

  • Screwpile, bored pile, ground anchor design to AS2159 & AS4100
  • Microfine grout injection retaining structures design to AS4678
  • Selection of appropriate piling and retention systems given specific
  • Ground conditions and site constraints

Structural Design

  • Design of steel and concrete structures to AS3600 & AS4100
  • Wind load analysis to AS1170.2, in particular “region D” cyclonic areas
  • Coordination with drafters to produce structural drawings