MUNICIPAL ENGINEERING

Trotter and Associates, Inc. (TAI) currently provides municipal engineering services to over thirty (30) units of local government in northeastern Illinois, either as the appointed Engineer or as the consulting engineer.



As the appointed engineer, TAI is the designated firm in providing day to day general consultations, grant writing and project funding assistance, meeting attendance and project coordination, subdivision and development plan reviews, storm water reviews, GIS services, land surveying, capital improvement planning, design and construction services.


TAI has assisted clients in completing revisions and updates to engineering standards and the following municipal ordinances: subdivision; sewer uses; water use; wastewater pretreatment; zoning ordinances.


Through working for both large and small communities, Trotter and Associates recognizes that the needs are different from one community to the next. TAI understands the level of scrutiny that government agencies face and strive to assist its clients in keeping projects on schedule and within budget. TAI is diligent in the preparation of preliminary opinions of probable cost to ensure that our clients do not encounter the dilemma of addressing cost overruns during the construction phase of a project.


Trotter and Associates’ engineers understand that project costs are best controlled by preparation of detailed and accurate contract plans and specifications. Our designs routinely undergo a constructability review by our construction engineers during the Phase II design process to identify any potential cost or time-saving measures. This internal review allows us to make necessary design revisions prior to bid letting. TAI brings a commitment to detail and clarity in the preparation of plans and specifications that conform to municipal standards. Over the years, TAI has been very successful in minimizing change orders during construction resulting from in-depth assessments of local conditions.


TAI is very familiar with the problems brought on by aging infrastructure and the challenges faced by continued community growth. Trotter and Associates, Inc. has the experienced professional staff and procedures to improve the community’s infrastructure correctly, as well as in a cost effective manner by providing the best solutions possible.


Trotter and Associates’ goal is to provide the best possible service to all of our clients. In order to support this goal, TAI has assembled an experienced team of engineers, surveyors, engineering technicians, and support staff that is committed to providing the most efficient, cost effective, reliable solutions to our clients.



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RELATED PROJECTS

Village of Algonquin - WWTF Biosolids Handling Improvements

By Mark Dupree • May 20, 2025
The Village of Algonquin, Trotter and Associates, Inc., and Manusos General Contracting are excited to be moving into the construction phase of the WWTF Biosolids Handling Improvements project. With anticipated long lead times for equipment, the project team is working diligently to process submittals to ensure installation of the two decanter centrifuges can begin in the Spring of 2026 as planned. Upon completion of the project, the Village will have met its goal of upgrading the sludge dewatering operation to maintain processing current demands and allow for future development. 

Glenbard Wastewater Authority - 2025 Primary Clarifier Rehab

By Mark Dupree • April 29, 2025
The Glenbard Wastewater Authority is currently in the process of rehabilitating and upgrading its primary clarification, sludge pumping, and gravity thickening operations. In late 2024, the 2025 Primary Clarifier Rehabilitation project was bid to replace infrastructure that was reaching the end of its service life, as well as to provide better operational controls for the Authority. This project includes the removal and replacement of both 110-foot clarifier mechanisms and sludge pumping equipment. The new pumps will be on VFD’s to better manage solids within the process and will have the option to be directly fed to the anaerobic digesters. In addition, the existing gravity thickener will have its equipment removed and replaced. The Authority elected to include launder covers on both clarifiers for odor mitigation and the removal and replacement of the gravity thickener dome with a new flat cover. The project also includes upgrades to the existing electrical equipment and SCADA system and the replacement of diversion structure gates. Construction is underway and is anticipated to be completed in early 2026.

Village of Algonquin - High Hill Sanitary Sewer Relocation

By Mark Dupree • April 11, 2025
In 2022, Trotter and Associates completed a Wastewater Facility Plan Update for the Village of Algonquin. The plan outlined several capital improvement projects, including replacing the High Hill Park Interceptor Sewer. The existing sewer is located within High Hill Park Nature Preserve, along the banks of Ratt Creek, and adjacent wetlands. The Village requested a supplemental sewer relocation study be completed to evaluate alternative routing of the interceptor. Upon completion of the project, over a mile of 8-inch and 10-inch sewer will be replaced with 16-inch and 18-inch sewer. The new interceptor will be located along an adjacent street and the rear yards of residential properties, relocating the sewer from the banks of the creek, outside the nature preserve, and wetlands. This will provide the Village with improved access for future maintenance and an increased capacity for continued growth within the Village. 

Village of Algonquin - Braewood Lift Station Rehabilitation

By Mark Dupree • March 26, 2025
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.
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