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Prepared by: Bolton & Menk, Inc. BACKGROUND 2024 Country Drive Improvements ǀ 0N1.125375 Page 2 II. BACKGROUND Country Drive is a collector roadway that serves the area north of Little Canada Road and west of Interstate 35E. It is on the City’s Municipal State Aid System (MSAS) with annual average daily traffic (AADT) ranging from 2,900 to 3,000 vehicles per day based on the 2018 count data. The roadway was constructed as a frontage road to Interstate 35E in the early 1970’s. Over the years, Country Drive 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. The road has aged and deteriorated to the point where rehabilitation is required to prong the life of the roadway. III. EXISTING CONDITIONS Street Country Drive is a bituminous roadway that measures 36 feet from face of curb to face of curb. Country Drive has concrete curb & gutter located on both 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 2 in Appendix A for a depiction of the existing roadway section. The existing pavement section includes 7”-10.5” (8” average) of asphalt on top of 4”-15” (8” average) of apparent aggregate base. This is a more robust pavement section than typical City roads and was likely built to a higher pavement standard due to the higher volume of truck traffic on Country Drive. Watermain The existing watermain consists of 12-inch and 8- inch diameter ductile iron pipes that extend south from Ryan Drive. 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. Sanitary Sewer An existing 12” diameter reinforced concrete pipe (RCP) sanitary sewer runs along South Owasso Boulevard before crossing Interstate 35E. The existing RCP sanitary sewer is in good condition. Based on the age, type, and positive performance of the sanitary sewer, the useful life of the system is expected to outlast the pavement improvements described in this report. An existing 42” diameter Metropolitan Council gravity interceptor line runs crosses Country Drive and runs south along the west side of the right-of-way. No impacts to the existing sanitary sewer line are anticipated with this project. Storm Sewer Stormwater is conveyed along the roadway through a network of catch basins, roadside ditches, and driveway culverts. Storm sewer piping and driveway culverts generally consist of reinforced concrete pipe (RCP) in varying sizes from 24-inch diameter and larger. Notably, the I-694 stormwater pond system runs underneath Country Drive with a 122-inch diameter storm sewer pipe before eventually flowing into the ditch system that surrounds North Star Exhibit 1 – Existing Country Drive Pavement