12-14-2022 Council Packet - Laserfiche WebLink

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Prepared by: Bolton & Menk, Inc. ESTIMATED COSTS 2023 Street Improvements (Sunrise Drive Mill and Overlay) ǀ 0N1.127995 Page 3 the life of the overall roadway (asphalt base, aggregate base, concrete curbing, etc.). A properly timed mill and overlay can extend the life of the roadway 15+ years. In addition to the asphalt mill and overlay, curb and gutter that is cracked, weathered, or heaved will be removed and replaced with new curb and gutter. This improves stormwater conveyance to catch basins and prevents the intrusion of stormwater into the roadway base. 2. Watermain Improvements The existing ductile iron watermain is in good condition and is proposed to be left in place. Similarly, existing water services are proposed to be left in place. Mill and overlay projects are typically not good candidates for underground utility improvements because the intent is to save the existing asphalt base course. 3. Sanitary Sewer Improvements The existing sanitary sewer network is in good condition and is proposed to be left in place. In conjunction with the pavement rehabilitation, each sanitary sewer structure within the pavement will receive a new casting and adjustment to the new pavement elevation. Mill and overlay projects are typically not good candidates for underground utility improvements because the intent is to save the existing asphalt base course. 4. Storm Sewer Improvements Overall, the existing storm sewer system is in good condition and proposed to be left in place. III. ESTIMATED COSTS The estimated project cost to complete the improvements proposed herein are presented below. These costs include estimated construction costs, a 15% contingency, 18% engineering, and allowances for geotechnical investigations. These cost estimates are based upon public construction cost information. Since the consultant has no control over the cost of labor, materials, competitive bidding process, weather conditions, and other factors affecting the cost of construction, all cost estimates are opinions for general information of the client and no warranty or guarantee as to the accuracy of constructi on cost estimates is made. It is recommended that costs for project financing should be based upon actual, competitive bid prices with reasonable contingencies. Table 1: Estimated Cost Summary Item Total Estimated Cost Streets $45,358.61 Sanitary Sewer $5,321.80 Water Main $1,947.00 Storm Sewer $6,749.60 Total $59,377.01