Engineering Bench Mark Data

Please remember that the user is responsible for verifying bench marks by checking between at least three bench marks before using. If you find discrepancies in bench mark data, please let the Public Works Department know. If you have any questions about the bench mark information please call the Public Works Department at 847-272-4711.

Note: Existing Benchmarks datum is in NGVD '29 and will need to be converted to NAVD '88.