In 2022, Trotter and Associates, Inc. completed an assessment of the Village of Algonquin’s Braewood Lift Station. The primary improvements focused on increasing the station’s capacity to handle the rapid growth in both the Braewood Lift Station service area and the upstream Grand Reserve Lift Station service area. With the increased capacity of the station, the velocity through the existing 10-inch force main exceeded allowable limits. To address this, a 16-inch force main was included in the design, which was constructed in 2024.  With the force main constructed, the station rehabilitation has commenced. Work within the station includes upsizing the piping and pumps, replacing the grinder, and improving both the electrical and HVAC systems. Upon completion of the work, the pumping capacity of the station will be increased from 1,500 gallons per minute (GPM) to 5,000 GPM, allowing the Village to meet both current and future development demands.

To facilitate IDOT’s proposed widening of Illinois Route 53 at Butterfield Road, Illinois American Water was required to relocate several of its facilities within IDOT’s right-of-way. Illinois American Water retained Trotter and associates to design the relocation of a quarter mile of sanitary sewer, over a mile of water main, and a water pressure reducing station. These utility relocations are expected to begin within the next several months. 

The City of North Chicago's Foss Park Underpass and Retaining Wall Improvement Project is nearing completion. This section of Foss Park Avenue is a critical access point for AbbVie Pharmaceuticals, the FBI Training Facility, Foss Park District amenities, West Rock Corporation, and Naval Station Great Lakes, so time was of the essence. The contractor achieved substantial completion within seven weeks. This $550,000 project included reconstructing 800 feet of the roadway and all associated curbs, sidewalks, and storm sewer. The roadway section under the Chicago Northwestern Railroad underpass was improved from an HMA pavement section to a 10-inch PCC-reinforced pavement section. Areas along the route were also reprofiled to improve drainage. To replace a failing stone wall along a portion of the corridor, a 130-foot modular block retaining wall was installed. The remaining parkway restoration and HMA surface course placement is expected to be completed in Spring 2025.

Construction of Fox Metro Water Reclamation District’s North WWTP Bar Screen Replacement project has begun. Trotter and Associates is assisting the District with construction engineering services throughout the project, including close coordination and collaboration with the District's design engineer. The existing bar screen operation utilizes three mechanical bar screens, which date back to 1989 when the District operated as the Aurora Sanitary District. The three existing screens are being replaced as part of the project, and a fourth is being integrated into the process. The contractor recently completed the erection of the building's additional outer shell. To facilitate the building addition, the contractor relocated several site utilities, including the relocation of the 72” overflow. With the project still in its infancy, construction will continue through 2025.

The Village of Fox Lake recently completed its 2024 Roadway Improvement project that improved a half mile of Longwood Drive and Wildwood Drive. Rehabilitating these roadways included using Full-Depth Reclamation with Cement, a sustainable construction method. This method pulverizes the existing pavement section and mixes cement, providing a more substantial base for the new pavement section. Grant Township maintains a section of Longwood Drive and two other roadways east of the work being completed. To minimize public impacts and provide a comprehensive improvement to residents, the Township resurfaced a half mile of its roadways in conjunction with the Village. Trotter and Associates provided design and construction engineering services for the Village and the Township.