​About Us
Engineering Resource Associates, Inc. (ERA) is a consulting firm providing civil engineering, structural engineering, environmental science, and surveying services to clients throughout Illinois, Indiana and Wisconsin. Our diverse clientele includes municipalities, park districts, forest preserve districts, sanitary districts, county agencies, and state agencies. We have more than two decades of experience identifying and working with a wide variety of local, state and federal funding sources. Our staff of professionals include licensed engineers, structural engineers, surveyors, environmental scientists, certified floodplain managers and CAD/GIS specialists.​

Who We Are
Our firm specializes in providing comprehensive services throughout the planning, design and construction phases of engineering and environmental assignments. The following is a partial listing of the primary types of projects that have been successfully completed by our firm:​

  • Infrastructure Projects - Sanitary Sewers, Storm Sewers, Water Mains and Pumping Stations
  • Structural Projects - Bridges, Retaining Walls, Dams, Levees  and Buildings
  • Site Development - Municipal Facilities, Education, Healthcare, Commercial and Residential
  • Water Resource Projects - Hydraulics/Hydrology Analysis, Master Plans, Watershed Studies, Ordinance/Guidance Manuals, Storm/Sanitary Modeling, Floodplain Mapping, Stream Restoration, Levee Certification and CRS Services
  • Transportation Projects - Roadways, Intersections, Utility Relocation /Designs, Permitting, Traffic Signals, Lighting, Streetscape, and Parking Facilities
  • Construction Projects - Bidding Assistance, Construction Layout, Observation, IDOT Documentation and Construction Administration
  • Recreational Projects - Riverwalks, Golf Courses, Regional Trails/Paths, Community Parks, Dog Parks, and Sledding Hills 
  • Environmental Projects - Wetland Facilities, Stream Bank Stabilization, Best Management Practices and Natural Area Restoration
  • Surveying and Mapping Projects - Topographic Surveys, Boundary, Surveys and GIS Services

Our Mission
ERA offers integrated engineering and environmental services focused on improving communities and their infrastructure. We are committed to developing lasting relationships with our diverse clientele by consistently delivering innovative and sustainable design solutions.

IDOT
​Prequalified

ERA is prequalified with the Illinois Department of Transportation (IDOT) In the following categories:
​​• Special Studies - Traffic Signals
• Highways - Roads and Streets
• Special Services - Surveying
• Special Studies - Feasibility
• Location Design Studies – Rehabilitation
• Location Design Studies - Reconstruction/Major Rehabilitation
• Special Services - Construction Inspection
• Structures - Highway: Simple
• Structures - Highway: Typical
• Hydraulic Reports - Waterways: Complex
• Special Studies - Location Drainage
• Hydraulic Reports - Pump Stations
• Hydraulic Reports - Waterways: Typical
• Environmental Reports - Environmental Assessment
• Environmental Reports - Environmental Impact Statement
• Highways - Freeways