City Engineer Report — L.1

City of Tiffin May 1, 2026 PROJECT UPDATE HIGHWAY 6 CONCEPT AND COST ESTIMATE – JAMES WATTERS MSA and City met with IaDOT District 6 to discuss staging on April 22, 2026. Portions of the road will need to be closed for box culvert and and road reconstruction with a detour put in a place. A finalized staging layout can be provided to the City for review later in May to better unstanderstand detour routes and locations of road closures. NORTH PARK ROAD IMPROVEMENTS – JAMES WATTERS The new detour route to Robert’s Ferry was put up on March 3rd and North Park Road was closed to traffic on March 9th. Construction resumed later the same week. The primary work item for the month of April was storm sewer. As of the week of April 30th, water main on the project is complete. Active field tile was found during construction operations and was tied into the storm sewer on Mopar Dr. Access for homeowners at 300 North Park Road has been established and contact information has been provided to them. Their access will be maintained throughout the remainder of the project and changes will be communicated promptly. Moving forward, storm sewer work continued the week of March 30th and is 95% complete for the project. Paving is tentatively planned for May or June. Coordination between the North Park Road project and the Homemakers site is ongoing. A Change Order for a temporary pipe connection to the Homemaker’s detention basin has been submitted for Council approval the week of April 30th. FIRE STATION DRAINAGE IMPROVEMENTS – ANDREW INHELDER LL Pelling has begun construction. They tied in the western roof drain to the existing drains and paved portions of the driveway and sidewalk. Anticipating completion of concrete the week of 5/4/26. PROJECT UPDATE Page 2 of 5