WATER RESOURCES
Our staff is highly skilled in the technical and non-technical aspects of water resources; hydrology, hydraulics, streambank stabilization, and floodplain management. TAI’s staff has completed all facets of planning, design, permitting, and construction oversight of stormwater projects ranging from simple parcel-scale stormwater Best Management Practices (BMPs) to large scale watershed planning projects.
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RELATED PROJECTS
The Lewis Avenue Detention Basin Phase I project is a stormwater infrastructure improvement for the City of North Chicago near Lewis Avenue and 20th Street. The project is intended to address chronic flooding within the Southwest Pettibone Creek Watershed by providing additional stormwater storage, reducing peak flows, and relieving pressure on the existing drainage system. Phase I includes construction of a stormwater detention basin, related earthwork and grading, storm sewer improvements, erosion control, restoration, and site stabilization. The basin will temporarily store runoff during major rain events and release it in a controlled manner to help reduce downstream flooding impacts. In addition to flood mitigation, the project includes wetland vegetation. Together with future phases, the improvements are expected to enhance public safety, protect nearby homes and properties, and improve the overall resilience of the local stormwater system. The project is expected to be funded through grant assistance from the Illinois Department of Commerce and Economic Opportunity. Phase I represents an important first step toward reducing flooding frequency and severity in the area. This phase will be completed this fall.
Trotter and Associates, Inc. (TAI) continues its partnership with the DuPage County Department of Stormwater Management on the rehabilitation of the West Lobe Pump Station at the Elmhurst Quarry Flood Control Facility. This critical infrastructure serves as a flood control system by storing excess flow during major rain events and later pumping stormwater back to Salt Creek once conditions recede. Independent Mechanical Industries, Inc., and their subcontractors are on schedule for the West Lobe Pump Station to be returned to service this fall. Over the last several months, the team completed installation of four 500-hp pumps and rehabilitation of the discharge piping supports along the 100-foot quarry highwall. Additionally, the pump station’s electrical system was upgraded with a 2,500-amp switchboard and VFDs to provide a long-term reliable electrical system for the facility.
Glenbard Wastewater Authority recently completed replacing the aging asphalt parking lot at its main office. To meet current needs, the lot was expanded from seven spaces to sixteen, including accessible parking. With the East Branch DuPage River directly downstream of the site, permeable pavers were utilized instead of asphalt. The use of these pavers not only reduces the amount of stormwater runoff but also improves the quality through natural filtering. Trotter and Associates assisted the Authority throughout the entire life cycle of this project.
The Village of Fox Lake engaged Trotter and Associates, Inc. to design and construct a new roadway for the Lakefront Park redevelopment initiative. Valued at approximately $1.4 million, this undertaking will serve as the primary means of access for the residents and businesses along Nippersink Road, adjacent to Lakefront Park. The project also includes new water main improvements installed to bring municipal water to the residents and businesses and updates to the stormwater utilities within the area. Construction began in June 2023, and the roadway opened to the public in November, achieving Substantial Completion. The project has reached Final Completion, with the overall cost being about $20,000 under budget.