M-6 - Engineer Report - MSA

City of Tiffin September 1, 2022 PROJECT UPDATE Deer View Avenue and Tall DOT has requested concurrence from the City on permanent TBD Grass Avenue & Hwy 6 improvements to intersection within 5 years of installation of Intersection Improvements temporary traffic signals in 2020. Scope includes both pedestrian and vehicle accommodations. Highway 6 Concept and Cost Estimate MSA submitted conceptual plans and typical section to the Iowa DOT for review on July 25, 2022. Once concurrence of the conceptual plans is received, MSA will develop a construction cost estimate for the proposed work. The Iowa DOT provided MSA updated traffic projections for US 6 on June 14, 2022. The Iowa DOT completed their review on June 22, 2022 of the Prairie Valley Development Traffic Impact Study with comments. The Iowa DOT provided comments regarding the need for an updated traffic study at Kimberlite Street since the last one was completed in 2019 and includes outdated traffic projections and turning movements. MSA will work with the City and other firms to determine course of action to update the traffic study. Field topo survey will begin this fall. This would allow for preliminary design to begin over this upcoming winter season. Preliminary Water and Wastewater Evaluation MSA has completed the water treatment and wastewater treatment evaluations. Upon review of the reports with city staff, MSA is preparing a project schedule to supplement the memo and outline when the infrastructure improvements can be designed and constructed. DEVELOPMENT ASSISTANCE Park Place Part 8 The developer’s engineer provided revised plans on August 16, 2022 and August 25, 2022. All review comments provided by MSA have been addressed by the developer’s engineer. Madden Addition Lot 55 OPD All review comments provided by MSA have been addressed by the developer’s engineer. Shamrock Center Lot 3 Site Plan All review comments provided by MSA have been addressed by the developer’s engineer. Madden Addition Pedestrian Bridge MSA staff will perform an initial bridge inspection of the completed pedestrian bridge in Madden Addition in September. Sidewalk/Trail Connection MSA will design and develop plans for a sidewalk/trail connection from the SE quadrant of the roundabout at Park Road to the soccer field parking lot. Survey will begin shortly. PROJECT UPDATE Page 2 of 2