Discussion and Consideration of Change Order #12 – Boomerang Corporation – North Park Road Improvements Project – Motion to Approve — K.2

City of Tiffin - Iowa Change Order Details 52-7662-615 Description STP-U-7662(615)--70-52, Letting Date- December 17, 2024 Prime Contractor Boomerang Corp. 13225 Circle Dr Suite A, Anamosa, IA 52205 Anamosa, IA, IA 52205 Change Order 12 Status Pending Date Created 02/02/2026 Type Non-Significant - Non-Participating Summary Add item for Increase in Traffic Control. Move the construction detour route from Croell Avenue as designed to Robert's Ferry Rd in Tiffin. Change Order Description 8160: Add item for 6100-2528035 {EXTRA WORK} TRAFFIC CONTROL Awarded Project Amount $5,458,891.91 Authorized Project Amount $5,497,683.66 Change Order Amount $2,750.00 Revised Project Amount $5,500,433.66 B-Reason for Change 8160: The City of Tiffin requested to move the detour route from Croell Avenue (as designed) to Robert's Ferry Road. This became necessary to address local traffic concerns on Croell Avenue, as well as accommodate additional detours within the City that will be in place due to other local construction projects. Change Order Details: 02/03/2026 52-7662-615 Page 1 of 3