Engineering Overview

Our Engineering teams both complement our environmental and advisory capability and advise clients across a full spectrum of engineering projects

Service Line News

SLR's response to Coronavirus / COVID-19

July 01, 2020

​In response to the ongoing global pandemic, SLR is actively following the advice and guidance on coronavirus provided by the relevant national and state governments. Our leadership team and H&S professionals are regularly monitoring developments and updating advice to our people using all available communications channels. That advice covers infection risk, travel guidance, office management, working from home and ongoing support to all employees.

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Service Line Team

Richard Johnson (CA)


Richard Johnson is the Director of the Power Sector in Canada and the Chief Operating Officer of SLR Consulting (Canada) Ltd. Richard has over 24 years’ experience in power generation and transmission consulting and has been client manager for projects ranging from feasibility studies, environmental impact assessment, planning, licensing/permitting, design, contract preparation, procurement and construction management consultation.

John Postlethwaite

(APAC) Close

John has around 30 years of diverse experience in both environmental and civil engineering projects. He has worked on Australian and international projects, providing professional advice and guidance to private and public sector clients.

He has worked across many industries and market sectors and has been involved in the successful delivery of many multi-disciplined small to major scale projects. Although he has a depth of knowledge of civil design projects, over the last 10 to 15 years he has specialised more in environmental engineering, with particular emphasis on EIS, land and water quality assessment, surface water hydrology, flood estimation and water sensitive urban design. The marriage of civil design and construction practice and environmental rigour has provided John with key skills and experience that have enabled him to guide the design and approvals processes, and ultimately enabling ‘best on balance solutions’ for many challenging projects.

His experience also extends to on-site water supply and wastewater treatment and disposal, transport planning and civil infrastructure design. John has worked alongside and assisted land and property developers, energy providers, mining companies, local and state government departments and other statutory authorities.

John’s diverse background across the environmental assessment of sites and vast construction experience enables him to provide a holistic approach to project management and robust advice to clients throughout the project’s life, through site enabling, planning and development approval, design and construction and rehabilitation.

John has also been able to apply his ‘hands on’ management and leadership style and use his effective communication skills to grow multi-discipline teams; not just in numbers but also in technical understanding, practical and economic designs and to harness and embed sustainable attitudes to project delivery.

David Ritchie

(CAN) Close

David Ritchie is the Canadian Mine Waste Engineering Manager and Engineering Service Line Lead. He has 23 years of experience with tailings, mine waste, and water management for global mining clients. In addition to a focus on tailings facility design, David has direct experience with site selection studies, dam design and construction, operations and closure.

Scott Miller

(US) Close

Mr. Miller has over 26 years of professional consulting experience. He is responsible for supervising technical staff and working with customers to ensure that strategic project deliverables are responsive to our client’s business needs.

Mr. Miller has considerable experience with all aspects of environmental assessment, planning, permitting, remediation, site regulatory closure, management, and costing. Mr. Miller has experience with large, complex environmental cleanup projects involving multi-party agreements, multi-agency involvement, and tribal and landowner issues. Mr. Miller regularly interacts with regulatory agencies on matters such as site assessment, source control evaluations, human health and ecological risk assessments, feasibility studies, and site remediation.

Mr. Miller has prepared and overseen the preparation of Spill Prevention, Control, and Countermeasure (SPCC) plans for a wide range of facilities. Mr. Miller has prepared and overseen the implementation of Storm Water Pollution Prevention Plans (SWPPP), assisted facilities with design of stormwater system and stormwater treatment, and developed best-management practices to reduce select stormwater pollutants.

Fred Sutherland (AFR)


Fred is the Operations Manager of the SLR Africa Engineering service line with over 30 years of experience within the consulting industry, predominantly in the mining sector.

Having specialised in hydrology, hydraulics and all water related infrastructure development, he is a specialist in the development of simulation models for the analysis of various operational scenarios to evaluate management proposals related to water management, water balances, water provision, water quality, water treatment and the security of water access in dry climates.

Additionally, Fred is a Civil Engineer with his Professional Engineer certificate and has been operating in this field all of his professional career.