The Engineering Division of the Community Development Department is responsible for maintaining a high quality of life in Crystal Lake by ensuring that the City’s infrastructure is serving the public’s needs. Engineering works with residents and developers to provide technical guidance related to City standards for traffic and drainage in order to ensure that these systems are planned and constructed properly. Engineering accomplishes this by reviewing proposed developments to ensure they provide adequate means of handling stormwater runoff and traffic, designing improvements to existing facilities, and helping maintain our existing infrastructure so that these facilities continue to serve the public into the future. 

Specific projects that Engineering oversees include:
• Review of proposed developments in the City
• Review of permit applications to ensure they meet City engineering standards
• Inspection of the public infrastructure that is associated with developments
• Coordinating and overseeing the annual infrastructure programs
• Administering the City’s stormwater management ordinance
• Overseeing the design of intersection and roadway improvements and expansions

Please contact Engineering for concerns with drainage, flooding, traffic, infrastructure, and street lights.



Current Bids and RFPs

A copy of Bid Packages or Requests for Qualifications and Proposals are available on the Bid Sync website, or may be acquired at the City of Crystal Lake Municipal Complex at 100 West Woodstock Street in Crystal Lake. Contact Engineering at (815) 356-3605 for more information.

The following bids were recently awarded:

  • Downtown Crystal Lake 2017 Sidewalk Replacement Program: Bids opened July 1, 2017, awarded July 18, 2017 (Bid Tab)
  • Sidewalk Cutting 2017 Program: Bids opened May 31, 2017, awarded June 20, 2017 (Bid Tab)
  • Traffic Signal Maintenance Program FY 2017-2018: Bids opened May 8, 2017, awarded May 16, 2017 (Bid Tab)
  • Street Light Maintenance Program FY 2017-2018: Bids Opened April 7, 2017, awarded April 18, 2017 (Bid Tab)
  • Street Resurfacing 2017 Program: Bids opened February 22, 2017, awarded March 21, 2017 (Bid Tab)
  • Concrete Sidewalk and Curb Repair and Replacement 2017 Program: Bids opened February 22, 2017, awarded March 21, 2017 (Bid Tab)
  • Manhole Frames and Lids Purchase 2017: Bids opened February 22, 2017, awarded March 1, 2017 (Bid Tab)
  • Illuminated Street name Sign Program FY 2017-2018: Bids opened  February 27, 2017, awarded March 3, 2017 (Bid Tab)

Right-of-Way Permits

If you are a public utility, and would like to apply for a permit to conduct work in the City’s right-of-way, please use the City’s ROWay online permit system. You can access the ROWay permit system at

Service Requests

Traffic Signal Outages
Engineering is responsible for coordinating the maintenance of Traffic Signals. If you observe a traffic signal outage, please contact Engineering during normal business hours at (815) 356-3605, or you can alert the Crystal Lake Police at any time by dialing 911.


Street Light Outages 

Residential Street Light Outage - If you notice a street light that has burnt out or is not functioning in a residential neighborhood, please notify ComEd of the outage by clicking on this link and entering in the requested information -

Non-Residential Street Light Outage - If you notice a street light that has burnt out or is not functioning in a non-residential neighborhood, such as in a shopping center or along a main line roadway, please call Engineering at (815) 356-3605 with the following information:
• Location of Pole, including street address
• Type of material of the pole (wood, concrete, metal, etc.)
• Description of how the light is acting (is it blinking, completely burned out, etc.)
• The length of time the light has been malfunctioning, if known.

The City will notify the appropriate party regarding the street light outage. If you are unsure which agency to contact, please feel free to call Engineering for assistance.