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Prepared by: Bolton & Menk, Inc. YORKTON RIDGE 2022 Street & Utility Improvements (Yorkton Ridge, Maple Ln - Jackson) St ǀ 0N1.125241 Page 2 II. YORKTON RIDGE Background Yorkton Ridge is an urban residential street. Annual average daily traffic (AADT) data for this road is unavailable but assumed to be less than 1,000 vehicles per day classifying it as a low-volume road. Refer to Figure 1 in Appendix A for a depiction of the project location. Over the years, Yorkton Ridge has received crack seal and sealcoat treatments in an effort to prolong the life of the pavement. Annual pavement patching has also occurred as needed. The utility infrastructure has been maintained on a routine basis since construction. Existing Conditions 1. Streets Yorkton Ridge is a bituminous roadway that measures 30 feet from face of curb to face of curb. Yorkton Ridge has surmountable concrete curb & gutter on the north and south sides. The pavement shows signs of wear and distress, including cracking and potholes, which are typical for a pavement of this age. Refer to Figure 2B in Appendix A for a depiction of the existing utility infrastructure. 2. Watermain The existing watermain is an 8-inch diameter ductile iron pipe that extends west from Condit Street before terminating at the cul-de-sac fire hydrant. The water system has performed well, and there are no known deficiencies with the system. Based on the age, type, and positive performance of the watermain, the useful life of the system is expected to outlast the pavement improvements described in this report. 3. Sanitary Sewer The existing sanitary system is an 8-inch diameter vitrified clay pipe (VCP) which conveys wastewater west before connecting to the Metropolitan Council interceptor line that runs along Waterworks Trail. City maintenance staff have noted no known deficiencies with the sanitary sewer system. Bolton and Menk staff reviewed each of the sanitary sewer structures within the project area. The structures are precast and in good to very good condition. Based on the system’s age, material, and positive performance, the useful life of the sanitary system is expected to outlast the pavement improvements described in this report. 4. Storm Sewer The existing storm sewer system is composed of reinforced concrete pipe (RCP) varying in size from 12-inch diameter to 18-inch diameter. Stormwater is conveyed to five catch basins along existing curb & gutter before traveling northwest through the pipe network and outletting to a detention pond northwest of the cul-de-sac. City maintenance staff have noted no known deficiencies with the storm sewer system. Bolton and Menk staff reviewed each of the storm sewer structures within the project area. The structures are precast and overall are in good condition with the exception of Exhibit 1 – Existing Yorkton Ridge