Discussion and Consideration to Approve a Professional Service Agreement with the Iowa DOT for the Highway 6 Improvements Project – Motion to Approve — K-2

AGENDA ITEM # K-2 AGENDA INFORMATION TIFFIN CITY COUNCIL COMMUNICATION DATE: August 27, 2026 AGENDA ITEM: Discussion and Consideration to Approve a Professional Service Agreement with the Iowa DOT for the Highway 6 Improvements Project ACTION: Motion Background The Iowa Department of Transportation and the City of Tiffin have been working jointly on improvements to U.S. 6 through Tiffin. The City and Iowa DOT previously entered into Agreement No. 2025-P-001 for predesign, which was executed by the City on March 7, 2025, and by the Iowa DOT on March 17, 2025. The proposed Preconstruction Agreement establishes the current project concept and identifies the responsibilities and cost-sharing obligations of both parties. In addition to the primary highway improvements, the City has requested that the project incorporate several improvements within Tiffin, including: • New storm sewer and associated appurtenances; • New water main and associated appurtenances; • Sidewalk improvements; • Traffic signals at the intersection of U.S. 6 and Kimberlite Street; • Widening of U.S. 6 pavement; and • Extension of an existing box culvert. These City-requested improvements will be incorporated into the Iowa DOT project and constructed as part of the overall project. The agreement provides that these requested improvements will be at no cost to the Iowa DOT beyond the City's identified cost-share responsibilities. Under the agreement, the City will have several responsibilities associated with the project. The City will assist the Iowa DOT with inspection of the new water main and associated appurtenances. The City will also assume ownership and future maintenance responsibilities for the new water mains, traffic signals within the City's corporate boundaries, PCC sidewalks located outside Iowa DOT right-of-way, and the reconstructed portions of Main Street, Summerhays Street, Stephans Street, Croell Avenue, and Kimberlite Street. The City will also be responsible for relocating City-owned utilities when necessary for construction and for providing certain City-owned property or right-of-way required for the project. The agreement specifically provides temporary access to City-owned property near the Park Road roundabout for construction of the new water main. The City's estimated share of $3,920,988.98 is comprised primarily of improvements that are the City's responsibility, along with the City's six-percent share of applicable storm sewer costs. Exhibit B identifies the project costs by division, with Division 1 funded 100% by the Iowa 1