Water Main Replacement

& Roadway Reconstruction

The Village of Downers Grove recently began construction of a $6 million water main replacement and roadway reconstruction for its Knottingham Subdivision. The subdivision was originally constructed in the 1970’s, and was in dire need of roadway and water main infrastructure improvements. Besides reconstructing all of the interior roadways to this residential subdivision, approximately 12,000 lineal feet of 8” water main was installed, as well as the replacement and reconnection of 230 residential water services. The plans called for extreme care to the many parkway trees as well as various individual landscaping amenities that needed to be removed and replaced.

The project also required coordination with ComEd, AT&T, NICOR and the local cable company. Because these improvements affected so many residents, the construction was phased in order to minimize inconveniences and properly maintain access to the subdivision during construction.

Maintaining water service and providing traffic control to the approximately 12,000 feet of roadways was of the utmost importance. Following the water main replacement, each residential roadway was reconstructed with new curbs and gutters, driveway aprons and ADA sidewalk ramps at each intersection.

Key Project Elements

  • Coordination with ComEd, AT&T, NICOR and local cable company in relation to utility conflicts

  • Maintaining water service and providing traffic control for entire subdivision of 230 residences

  • Improvement of drainage problems along affected roadways

  • An aggressive 4-month design schedule was maintained to facilitate the

  • Village’s desired construction timetable


Project Results (When Completed)

  • Higher water pressures and flows for the subdivision

  • Improved reliability for water distribution system

  • Improved roadway aesthetics and curb appeal for entire subdivision

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