Traffic Counts and Traffic Engineering Studies

McHenry County Division of Transportation is requesting qualifications from engineering firms to perform traffic counts and traffic engineering studies on various county highways, with submissions due July 27, 2026 at 9:00 a.m. CST.

The scope encompasses 24-hour intersection counts, roundabout counts, pedestrian and bike pathway counts, and traffic studies including warrant analysis for traffic signals and stop control signs in accordance with current MUTCD requirements and the ITE Traffic Engineering Handbook, 7th Edition. Work spans 130 traffic count locations across McHenry County highways. Traffic shall be counted on Tuesdays, Wednesdays, or Thursdays excluding holidays and school closures; pedestrian counts are conducted over four days (Thursday through Sunday). All traffic data must be collected using Miovision and delivered in Microsoft Excel format, with individual reports provided in both Excel and Adobe PDF formats.

Evaluation will be weighted across seven criteria: Specialized Expertise (30%), Firm Experience (20%), Technical Approach (15%), Staff Capabilities (15%), Workload Capacity (10%), Past Performance (10%), and In-state/Local Presence (0%). The County will select no fewer than three qualified firms and negotiate a contract with the highest-ranked firm at fair and reasonable compensation, proceeding sequentially to lower-ranked firms if negotiations fail.

Submittal requirements include IDOT Certificate of Eligibility and Statement of Experience and Financial Condition, Affidavit of Availability (BC 57), W-9, references from work performed within the last twelve months, and organizational charts with key staff resumes limited to one page each. All materials must be submitted electronically in PDF format with separate Excel files and become public information subject to the Illinois Freedom of Information Act unless redacted. Questions were due July 16, 2026. Transportation Committee evaluation is scheduled for August 3, 2026, County Board approval for September 15, 2026, and anticipated Notice to Proceed for September 21, 2026.