​Engineering Resource Associates (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 over three 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.

​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

​Engineering Resource Associates, Inc. (ERA) offers integrated engineering and environmental services focused on improving communities, their infrastructure, and natural resources. We are committed to developing lasting relationships with our diverse clientele by consistently delivering innovative, sustainable design solutions and construction services.

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