Sustainable Design

It is recognized that LEED principles are not relevant to the planning, design, and construction of horizontal infrastructure systems. Because of the public nature of permitting and the complex financing and public interest in these systems, the engineering community has committed to the development of a sustainability initiative that can assist professionals, owners, and other stakeholders in the delivery of sustainable infrastructure systems.

Peter Binney, Merrick's vice president for infrastructure, was one of the primary developers of those systems.  He was recognized by the American Society of Civil Engineers with the President's Medal in 2011 for his contributions to the development of sustainable principles and tools.
Sustainable Infrastructure Design in Action at Merrick

Application of the ISI's toolkit allows Merrick planners and engineers to provide approaches for clients that will enable agencies and project developers with a framework to recognize and measure those benefits and effects. This can facilitate regulatory approvals, gain community support, and provide guidance to effectively working with stakeholder groups who have an interest in the specific project.

Sustainability principles recognize the value of critical transportation, water and energy systems while effectively managing natural resources and limiting undersirable environmental, community, and economic consequences. These principles support water conservation and reclamation, net-zero energy programs, and a range of waste management and recycling initiatives. Public education and awareness are also critical factors in providing effective solutions, especially when infrastructure projects are being considered by budget-constrained agencies.

Institute for

Co-founded 2010 by:

Objective is to provide:
  Guidance materials
  Project rating system
  Professional accreditation

Triple Bottom Line

ISI Standards provide a triple bottom line assessment of:


This is then balanced against the technical & functional needs of transportation, water, and energy systems.