Williams Creek Management provided construction services for approximately 1,800 linear feet of riparian corridor restoration in Alton, Illinois. The project site is located within an existing municipal golf course with a highly urbanized watershed.
The purpose of the project was to restore and enhance a highly eroded stream that had experienced severe downcutting, creating bank stability problems throughout the 1,800-foot reach. The project goal to improve downstream water quality to the West Fork of the Wood River served as the focal point for the future mixed-use development, as it was an integral part of receiving $13 million in infrastructure funding through the TIGER III Federal Grants to develop a transit-oriented development.
Williams Creek implemented a two-stage ditch design in conjunction with multiple grade control structures. This approach will minimize future erosion and downcutting in a historically flashy stream, reduce pollutant load that will improve downstream water quality, and create an aesthetically pleasing floodplain corridor with the use of native plantings and natural features. A multi-use trail was also incorporated into the design for future pedestrian access along the corridor.