Merrillville - Sanitary Sewer Replacement

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The project replaced an existing rear-yard 8-inch sanitary sewer, located between Washington Court and Madison Street, that was at the end of its useful life. The sanitary sewer has had multiple collapses over the past several years and required full replacement. The work included designing the removal and replacement of the 8-inch sanitary sewer and utilizing a trenchless technology method of pipe bursting. Coordination with each affected homeowner was required due to the utility easement being congested with garages, fences, sheds, and vegetation, along with 8” pipe replacement, pipe bursting, new manholes/frame & cover, reinstatement of existing rear yard sanitary service, lawn restoration, asphalt restoration, R&R curb and gutter, fence removal & restoration, and tree removal.

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The result restored the useful life of the sanitary sewer for another 75 years, reduced the threat of a sanitary sewer collapse, and minimized the disruption to residents versus an open cut method. The approach also saved garages, sheds, fences, gardens and vegetation from major disturbance, and saved the Sanitary District cost over open cut sewer replacement.