Construction Updates 2022 Forest and Glendale Improvement Project 2022 Thompson and Brandywyn Contract 3 Improvement Project 2022 Cambridge on the Lake Lift Station Relocation Project Street Patching Project Did you know that some roads in Buffalo Grove are owned and maintained by Cook County (CCDOT), Lake County (LCDOT), or the State of Illinois (IDOT)? Click here for more info!