DCCM partnered with NineStar Connect to design and develop plans for the replacement of the sanitary sewer system in Riley Village. Originally a trailer park, Riley Village transitioned to single-family homes over time, but the existing sewer infrastructure was never upgraded to accommodate the neighborhood’s evolution. As a result, aging sewer lines ran between homes and were nearing failure.

The project included sanitary sewer replacement serving approximately 80 homes, as well as rehabilitation of existing sewer segments crossing beneath Sugar Creek. A key challenge was identifying the optimal alignment for the new sewer system while minimizing impacts to residents. The most practical location for the new sewer main was within the HOA-owned roadway, requiring new service laterals to be connected to each home.

To accurately design these connections, DCCM walked the entire neighborhood more than four times, developing lateral alignments based on estimated locations where existing laterals exited each residence. DCCM also worked closely with project stakeholders, including the homeowners association (HOA), to secure access and maintain clear communication throughout the project.

Maintaining resident access during construction was another critical consideration. DCCM designed the new sewer system to limit full-lane closures and reduce above-ground disruptions. To further minimize impacts, the existing sewer system was recommended to be abandoned in place and completely filled with grout. While this approach increased project costs, it avoided extensive excavation between homes and significantly reduced disruption to Riley Village residents.