Engineering Resource Associates
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IDOT
​Prequalified

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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

Warrenville

3S701 West Avenue
Suite 150
Warrenville, IL 60555

Phone:
​(630) 393-3060


Champaign

2416 Galen Drive
Champaign, IL 61821

Phone:
​(217) 351-6268


Chicago

10 S. Riverside Plaza
Suite 875

Chicago, IL 60606

Phone:
​(312) 474-7841


Milwaukee

342 N. Water Street
Suite 600
​Milwaukee, WI 53202

Phone:
​ (414) 238-9189


Denver

7535 East Hampden Avenue Suite 400
Denver, CO 80231

​​​​​Phone:
​(303) 790-9500

Contact Us

Office Hours: 8:00 am - 5:00 pm