Agenda - Public Works Committee - 01/18/2022

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Segment B-2 Assumptions • Realignment of Center Street as shown in the COR Framework Plan included in the project cost. o The cost for B-2 could be eliminated from the project if the existing roadway were to remain in place. Segment E Assumptions • 30-inch regional pond outlet pipe included in trunk storm sewer cost. • Extension of sanitary sewer laterals to the right of way included in sanitary sewer cost. Segments H & I Assumptions • Realignment of Veterans Drive to create a 5-acre parcel to the south included in the project cost. o Should Veterans Drive be constructed in the existing road ROW alignment and Peridot Street extends further south, the additional project cost is estimated to be $259,000. Additional Assumptions • No costs associated with construction of individual storm water ponds are included, as it is anticipated the regional pond will address all storm water runoff requirements. The regional pond will be sized to address all impervious surfaces within the developable area including the public improvements and all individual site development within the study area west of Center Street. • Park Fill is the estimated cost to grade the proposed City park parcel, fill the site to an elevation equal to the adjacent streets, place 4 inches of topsoil and seed and mulch the entire site. The estimated project cost to fill the site, topsoil, seed, and hydromulch is approximately $231,000. X. COST ALLOCATION The costs, or a portion of the costs, of the improvements are typically allocated back to adjacent properties through the use of assessments, fees and other methods. The costs are typically allocated in a way that is equitable to the properties benefitting from the improvements. Public improvements that will become City owned and maintained are typically constructed through a public process, while secondary improvements are constructed by the property owner. For our analysis, we assumed the following items would be constructed through the public process: • Roadways, including storm water conveyance systems, • Water System Facilities, • Sanitary Sewer Facilities, • Trails, • Street Lighting, and • City Parks While the street lights will most likely be installed by a private utility and the trails could potentially be constructed by the property owner, we have included these items as public improvements. Other improvements were considered secondary and are typically the property owner's responsibility: • Sanitary Sewer Service Extensions, • Water Service Extensions, Prepared by: Balton & Menk, Inc. COST ALLOCATION The COR Analysis I R16.114924 Page 16