City Engineer's Report [AMENDED] — L-2

PROJECT UPDATE  A Review of MSA Projects in Your Community City of Tiffin, IA CLIENT LIAISON: Andrew Inhelder, PE Office: 319.364.4773 Cell: 515.802.0906 [email protected] DATE: August 28, 2026 ON-GOING PROJECTS REVERSE OSMOSIS WATER TREATMENT PLANT DESIGN – CLINT WIENEN The RO skids have been delivered and assembled. Masonry walls within the RO building have been completed and painted will be completed within the next couple of weeks. Driveway paving has been partially completed. The Clearwell has been properly cleaned, disinfected, and tested for leaks. Work to be completed in the next month includes metal siding and roofing, truss installation on the addition to the existing treatment building, mezzanine construction, and ongoing electrical, plumbing, and HVAC items. At the construction meeting held on 8/25/2026, Tricon Construction is not anticipating the RO System to be operational until mid to late November. Substantial Completion was identified as 9/30/2026 in the Agreement. VILLAGE DRIVE & ROBERTS FERRY ROAD SIGNAL DESIGN – ANDREW INHELDER Project was awarded to Neumiller Electric, Inc on May 19th, 2026. Contractor and MSA are working through shop drawing submittal and review. The contractor has tentatively planned to begin construction in September. A pre-construction meeting will be scheduled closer to the anticipated project start date. Substantial Completion date for the project is October 2, 2026. HIGHWAY 6 CONCEPT AND COST ESTIMATE – JAMES WATTERS Final plans for letting were submitted to the DOT on August 4, 2026.The project will open bids for project in mid-October The 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. PROJECT UPDATE Page 1 of 5