In order for a proposing entity/applicant ("Requestor") to accurately engineer the installation of new facilities or maintenance of existing facilities, it is recommended that an Information Retrieval request (IR) be submitted to the OUC. This will assist Members in the protection of their existing infrastructure and minimize conflicts in the field during construction of new facilities or maintenance on existing facilities.
Upon submittal of an IR with an electronic drawing and one (1) copy of an 8-1/2" x 11" preliminary sketch of the project area, the OUC will assign an OUC number to the request and distribute the IR request to all Members for their review/ response. Members are required to respond within 30 calendar days to the OUC with existing atlas/record drawing information or to comment "Not Involved" when they are not located in the requested area. The OUC will confirm by written response to the Requestor that the IR request (OUC member) has been distributed to the Members and will notify the Requestor when all responses have been received.
It is then the Requestor's responsibility to obtain the completed IR request from the OUC Administrative Office and evaluate the information as it pertains to future work in the requested area. The Requestor should direct any correspondence regarding the information provided in the IR to the pertinent Members.
IR Process Overview Reference: 3.3.2 Information Retrieval Process
City Of Chicago
Department of Transportation
Office of Underground Coordination
30 N. LaSalle St., Suite 310, Chicago, IL 60602
Your package should also include a hard copy of the plan set, drawing or sketch
Upon receipt of your drawings, they will be reviewed for compliance and processing. If acceptable, you will receive the OUC#, Client Query# and Pin# assigned to your project. This will allow you to check the status of your project review online. will allow you to check the status of your project review online. If processing fees are applicable, a payment invoice will be e-mailed to you. The invoice must be paid at City Hall, Room 107 and a copy of your payment receipt should be e-mailed to OUC.
(NOTE: Maximum project area is 6 square blocks/per IR request).
3. Members review request and respond within 30 calendar days to the OUC with existing atlas/record drawing information or to comment “Not Involved” when they are not located in the requested area.
4. The OUC will manage the Member responses and notify the Requestor when all responses have been received for pickup.