Engineer's Report — L.1

City of Tiffin July 2, 2026 PROJECT UPDATE HIGHWAY 6 CONCEPT AND COST ESTIMATE – JAMES WATTERS James Watters presented the proposed staging for this project for the 2027 and 2028 construction seasons. Both years will have a full closure of US 6 within the project area and a detour posted on N Park Rd, Oakdale Blvd, and Roberts Ferry Rd. 90% plans were submitted to DOT for their review on 6/30/26. Final plans for letting are due to the DOT on August 4, 2026. DOT is currently working on the construction agreement with the City and will be submitting to the City for signature when ready. This agreement will put in place construct cost splits between the City and DOT. NORTH PARK ROAD IMPROVEMENTS – JAMES WATTERS Boomerang returned to site the last week of June and resumed clean up and grading operations. The next major construction item planned is trail and sidewalk paving. A meeting between City, MSA, and Boomerang staff was held on Wednesday, July 1st at 11 am to inspect manhole structure S-06. Homemakers resumed the connection of their 66” pipe on the morning of July 1st and plans to make remaining connections next week. Boomerang currently plans to have their pipe crew back to site the week of July 6th to finish storm under the Oak Hill Elementary entrance. The CCA School District attended the July 1st construction meeting and has been informed of these plans. Boomerang’s proposed plan to provide an emergency entrance to Oak Hill and the Transportation Center is to reinforce the “rock bridge” connecting the bus loop with the Oak Hill entrance. Removal of this reinforcement will be coordinated with the District. Simon Downs and Andrew Stapleton will be on-site for bulk of July as substitute inspectors. No work is planned for Friday, July 3rd in observance of the 4th of July on Saturday. PROJECT UPDATE Page 2 of 5