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 - 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.

Village of Addison - Wastewater Treatment Plant Consolidation Project

By Mark Dupree • March 4, 2025
Trotter and Associates, Inc. recently completed a Wastewater Treatment Plant Consolidation Study for the Village of Addison. As a result of the study, the Village elected to fully consolidate their facilities in lieu of doing a partial consolidation or rehabilitating and upgrading their existing treatment facilities. For constructability and financing advantages, the consolidation was separated into three phases. The Trotter team has begun developing the improvements for the first phase, which includes upgrading and expanding the North Wastewater Treatment Plant. Upon completing all three phases, this facility will process all wastewater flows from within the Village. Phase one includes construction of a 44,500 square foot Garage/Laboratory/Operations Building, Screening Building, Advanced Treatment Building (low-P treatment basins, tertiary filters, and UV disinfection), and excess flow clarifiers. In addition to these new structures, the following existing processes will be improved: upgrades to the grit removal system, rehabilitation of the primary and final clarifiers, rehabilitation and expansion of the aerobic digestion process and digester gas storage, and expansion of the biological process, which includes conversion from a two-stage extended aeration process to a single-stage A2O process. Construction is planned to begin in 2026 and continue into 2030.

Village of Roselle - Devlin Wastewater Treatment Plant Expansion

By Mark Dupree • March 3, 2025
Previously, Trotter and Associates completed a Wastewater Facility Master Plan for the Village of Roselle’s Joseph L Devlin Wastewater Treatment Facility. The plan identified four essential projects: Plant Expansion and Phosphate Removal, Grit Removal Rehabilitation, Secondary Clarifier Replacement, and UV Disinfection Conversion. Each project identified above is interrelated and will allow the facility to meet new regulations, support Village growth, and upgrade aging infrastructure. To provide the village with the best financial and operational benefit, these projects were combined into one WWTF Plant Expansion and Nutrient Removal Upgrades project. With preliminary engineering complete, the Trotter team is working on the final design documents for the project. This phase is expected to be wrapped up in the first quarter of 2026, with bidding and construction to follow. 

Village of Fox Lake – Wayfinding Sign Program

By Mark Dupree • December 5, 2024
The Village of Fox Lake engaged Trotter and Associates, Inc. to work with a sign design firm, obtain permits, and provide construction observation for the fabrication and installation of wayfinding signs throughout the Village. The project also included removing and replacing Village of Fox Lake signs with new monument signs. These monument signs incorporated the stone base and Village logo as seen throughout other structures constructed within the Village over recent years. The project involved permitting three separate DOTs which included: IDOT, Lake County, and McHenry County. In total, 19 signs were installed, and more are slated for construction in 2025.
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