11-17-2021 Council Packet - Laserfiche WebLink

Home Browse Search

Prepared by: Bolton & Menk, Inc. MAPLE LANE – JACKSON STREET 2022 Street & Utility Improvements (Yorkton Ridge, Maple Ln - Jackson) St ǀ 0N1.125241 Page 4 III. MAPLE LANE – JACKSON STREET Background Maple Lane and Jackson Street are urban residential streets. Annual average daily traffic (AADT) data for these streets is unavailable, but it is 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. Historically, Maple Lane and Jackson Street have received periodic crack seal and sealcoat treatment to prolong the life of the pavement. Additionally, annual pavement patching efforts have supported these pavement management practices on an as-needed basis. Similar maintenance on City utility infrastructure has occurred on the streets since their construction. Existing Conditions 1. Streets Maple Lane and Jackson Street are bituminous roadways that measure 30 feet from face of curb to face of curb. Surmountable concrete curb & gutter abut the bituminous pavement on both sides of the streets. Surface-level pavement wear and distresses, including oxidation and cracking, indicate age- related deterioration of the pavement surface. However, current pavement distresses do not indicate significant deterioration of the aggregate base and subbase of the roadway. 2. Watermain The existing watermain is a 6-inch diameter ductile iron pipe which extends north along Jackson Street before routing west along Maple Lane and terminating at the cul-de-sac fire hydrant. The water system has performed well, and there are no known deficiencies within 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 detailed in this report. 3. Sanitary Sewer The existing sanitary system is an 8-inch diameter vitrified clay pipe (VCP) that conveys wastewater north along Jackson Street and west to the Maple Lane cul-de-sac before continuing north through a utility easement. City maintenance personnel have noted no known deficiencies within the existing sanitary system. Additionally, Bolton and Menk staff reviewed each sanitary sewer structure within the project area. The structures are precast and found to be in good to very good condition. Based on the age, material, and historical performance, the sanitary sewer system is anticipated to outlast the pavement improvements described in this report. 4. Storm Sewer The existing stormwater infrastructure in the project area is confined to the west half of Maple Lane and is composed of reinforced concrete pipe (RCP) ranging in size from 12-inch diameter to 18-inch diameter. Stormwater west of the high point located along the curve of Maple Lane and Jackson Street is conveyed west by curb and gutter to one of four catch basins. All stormwater entering the Maple Lane system then Exhibit 3 – Existing Maple Lane