Design Engineering

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IEI provides design engineering services for a wide range of infrastructure projects, including roadways, highways, traffic engineering, structural facilities and bridges, mass transit, aviation, harbor, water management and site development projects. Together with our clients in both the public and private sector, we create solutions for any size project in a timely and cost-effective manner.

We offer a full range of design engineering services, including:

  • Transportation Studies
  • Roadway Phase I and II
  • Mass Transit/Railroad Design
  • Site Engineering 
  • Drainage Studies and Hydraulic Modeling
  • Erosion Control
  • Traffic Engineering
  • Pavement Design 
  • Earthwork Calculation 
  • Water and Wastewater Design 
  • Utilities Relocation Design
  • Structural Design for Buildings, Bridges and Harbors
  • Retaining Walls and Underground Junction Chambers 
  • Permitting