CIVIL ENGINEERING AND DESIGN FOR MUNICIPAL AND PUBLIC PROJECTS 

The $42.6 Million Phase 2A Rehabilitation project at the City of Batavia's WWTF is nearing completion, several months ahead of schedule and with less than 0.5% in change orders. After completing off-site utility and roadway replacement, bike path realignment, replacement of the process flow disinfection system, and rehabilitation of the final clarifiers, wastewater was completely transferred over to the brand-new Headworks and Primary Clarifiers in October 2025. This project’s success is a result of the outstanding dedication and collaboration of the General Contractor IHC, the City of Batavia Public Works staff, and our Trotter project representatives. We sincerely thank everyone for making this achievement possible!

The City of Saint Charles has completed Sequence #1 of the Ohio Avenue and Kautz Road Raw Water Main Installation Project, advancing critical water infrastructure improvements. The work included installing a new raw water main between Well No. 8 and the future Well No. 14, along with other key infrastructure components and roadway restoration. Most of the water main was installed using horizontal directional drilling to minimize surface impacts and limit disruption, and hydrants were installed by open-cutting. Trotter and Associates supported the City by securing EPA funding, designing the water main alignment, assisting with the bidding process, and observing construction in cooperation with City staff. 

Trotter and Associates, Inc. provided start-to-finish engineering services to the Village of Fox Lake for their 2025 Motor Fuel Tax (MFT) Roadway Improvement Project, delivering support from initial conceptual design through final construction closeout. The project rehabilitated over one mile of Village roads using a strategic mix of reconstruction and resurfacing techniques. The team’s expertise allowed the Village to make the most of its MFT funds while meeting critical infrastructure needs. By utilizing full-depth pavement reclamation with cement in conjunction with conventional milling and resurfacing operations, the Village successfully addressed underlying subgrade deficiencies in critical areas while extending roadway rehabilitation across multiple streets throughout the community, within the established project budget. Trotter and Associates, Inc.'s comprehensive approach ensured efficient project delivery, regulatory compliance, and optimal utilization of available funding resources for this essential infrastructure investment.

The Village of Algonquin’s Water Treatment Plants No. 1 and No. 2 Aerators and Roof Replacement project is nearing completion. With the new aerators operational, the Village will more effectively oxidize contaminants, enabling the facility to continue providing high-quality water to the community.  The new aerators also enhanced the facilities' capabilities and minimized objectionable odors. WTP No. 1 is a vital facility and cannot be taken out of service. This required careful planning and communication among the team to ensure uninterrupted operations. Close coordination between the Village of Algonquin, Trotter and Associates, and Keno and Sons Construction Company enabled the project to be successfully sequenced and completed within budget.

Trotter and Associates, Inc. has delivered a comprehensive series of municipal infrastructure upgrades in Woodstock, IL, over a multi-year period. These initiatives, focused on street improvements and water main replacements, have impacted 22.2 miles of roadway and represent a total investment of $28.3 million in enhancing public infrastructure and urban development. 2026 City of Woodstock 2026 Street Program The Trotter and Associates team is currently working closely with the City of Woodstock to determine the scope and streets for the 2026 Street Program. This project will entail road resurfacing and reconstruction, along with sewer repairs, on local roads. Raffel Road Resurfacing Trotter and Associates secured IDOT Local Agency Functional Overlay (LAFO) funding to resurface a 1-mile section of Raffel Road. This heavily used local arterial road had not been resurfaced since 2010. TAI worked with the city to complete both Phase 1 and Phase 2, and will complete Phase 3 (construction) in the spring of 2026. 2025 City of Woodstock 2025 Enhanced Street Program The 2025 Enhanced Street Program was a $8.3 million project that included 9 miles of cement-stabilized and traditional road reconstruction, as well as mill and overlay work on a mix of local arterial, collector, residential, and commercial roads. Associated work included full survey and design of severely deteriorated streets and areas with challenging ADA compliance issues, curb and gutter R&R, sidewalk R&R, landscape restoration, and storm and sanitary evaluation, design, and spot repairs. City of Woodstock Gould Street Water Main Replacement The 2025 Gould Street Water Main Replacement was a $1.3 million project which entailed the installation of 1,200 feet of 8” water main and appurtenances, adjacent sanitary and storm sewer repairs and replacements, a complete roadway reconstruction, a mill and overlay of adjoining streets, and full landscape restoration. 2024 City of Woodstock 2024 Enhanced Street Program The 2024 Enhanced Street Program was a $6.7 million street program that consisted of 6.9 miles of cement-stabilized reconstruction, as well as traditional mill and overlay work on a mix of local arterial, collector, residential, and commercial roads. Associated work included full survey and design of severely deteriorated streets, curb and gutter R&R, sidewalk R&R, landscape restoration, and storm and sanitary evaluation, design, and spot repairs. City of Woodstock Pleasant Street Water Main Replacement The 2024 Pleasant Street Water Main Replacement was a $3 million project which entailed the installation of 2,500 feet of 8” water main and appurtenances, 2,300 feet of new storm sewers, a complete roadway and curb and gutter reconstruction with significant changes to the road’s profile and cross-slopes, and a mill and overlay of adjacent streets. 2023 City of Woodstock 2023 Enhanced Street Program The 2023 Enhanced Street Program was a $6 million program that included 4.5 miles of cement-stabilized reconstruction and traditional mill and overlay work on a mix of rural, residential, collector, and arterial roads. Associated work included the police station parking lot mill and overlay, curb and gutter R&R, sidewalk R&R, storm and sanitary repairs, lead water service replacement, and landscape restoration. City of Woodstock Lake Avenue Water Main Replacement The 2023 Lake Avenue Water Main Replacement was a $3 million project, which entailed the installation of 3,200 feet of 16” water main and appurtenances as well as an asphalt overlay on Lake Avenue, a heavily trafficked local arterial road.

The City of Woodstock is continuing to enhance its aging infrastructure through its Gould Street Water Main Replacement project. Once complete, the project will have replaced and upsized a quarter mile of water main from 4” to 8”, which reinforces the system's operation and longevity. Various storm and sanitary sewer point repairs were also completed to ensure all underground improvements within the roadway were completed before resurfacing and reconstruction of the various roadways.

Trotter and Associates, Inc. (TAI) is collaborating with the City of Plano to assess the performance and capacity of their 2.44 MGD Biological Nutrient Removal Facility with aerobic digestion. As part of the evaluation, TAI addresses a key challenge: the City’s septic receiving station, which handles up to 10,000 gallons of septage per day during peak season. The additional solids load affects the facility’s overall capacity, especially in the aerobic digester. Our team is performing influent sampling and utilizing BioWin modeling to gain a thorough understanding of the facility’s operational dynamics. TAI is also developing an updated Basis of Design to reflect the impact of the septage receiving station, helping to determine the aerobic digester's remaining capacity. The result will guide recommendations for improvements to the solids handling system, ensuring long-term efficiency and performance, which is critical to infrastructure, and optimizing the wastewater treatment processes. 

Join us in welcoming Karen Young, P.E., CFM, to The Trotter and Associates, Inc. (TAI) as Senior Project Manager for our Civil Team, based in the St. Charles, IL, office. Karen brings extensive experience in civil and municipal engineering, including transportation engineering, stormwater management, and public infrastructure leadership. Most recently, she served as Director of Public Works for the Village of Roselle, with prior roles in St. Charles, Batavia, and Schaumburg. Her Certified Floodplain Manager (CFM) credential further strengthens TAI’s technical depth. As TAI advances its planned growth in 2026, Karen’s leadership will play a key role in expanding our civil team, supporting our clients, and upholding the standards that define our services.

Trotter and Associates, Inc. is proud to welcome Christopher Muellner, EIT, as a Project Engineer based in our St. Charles, IL office.  Chris brings experience in municipal utilities, land development, and civil site engineering. He is already contributing to infrastructure projects that support municipalities and communities throughout Northeast Illinois and Southern Wisconsin. With four TAI office locations and continued growth planned for 2026, we’re proud to add talented professionals like Chris to our team.

Today, several of our incoming interns and new graduates had lunch with the team at the Trotter and Associates, Inc., St. Charles office. This group is just part of TAI's 2026 class of 24 interns and new graduates collectively, representing nine leading engineering schools. They were updated on projects that will get their "Boots on the Ground" and spent time with the teams they’ll soon be joining! TAI will be attending several Spring 2026 career fairs. Be sure to connect with us when we are on your campus!