12-01-2021 Council Packet - Laserfiche WebLink

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Prepared by: Bolton & Menk, Inc. RYAN DRIVE IMPROVEMENTS 2022 Street & Utility Improvements (Woodlynn Ave, Ryan Dr) ǀ 0N1.125241 Page 5 Proposed Improvements 1. Street Improvements Proposed pavement improvements on Ryan Drive would be completed in conjunction with the Watershed’s current culvert construction project. As part of the Watershed’s project, pavement areas impacted by the culvert construction will receive a base course of bituminous pavement. A proposed 2-inch bituminous wear course, also called a final lift, would be installed with the City’s improvements and would complete street improvements in this section. A depiction of the proposed street and utility improvements is shown in Figure 3A in Appendix A. The remaining pavement within the project area shows signs of surface-level distresses associated mostly with pavement age. The current distresses do not indicate deterioration of the aggregate roadway base. Accordingly, the proposed street improvement for the remaining pavement sections of Ryan Drive is a full depth reclamation (FDR). Full depth reclamation is a cost-effective rehabilitation method that grinds the top 10- 12 inches of existing bituminous pavement and aggregate base into a new aggregate that creates an improved foundation for 4 inches of new bituminous pavement. 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. 3. Sanitary Sewer Improvements To serve the remaining industrial properties in the Ryan Industrial Park, it is proposed that the following improvements are made: · Installation of a pressurized 2-inch diameter public sanitary sewer forcemain · Construction of two intermediate manholes with valving, backflow prevention, and cleanout capability The private laterals from the right-of-way line to the existing septic tanks would not be installed as part of this project. Rather, private laterals and grinder pumps would be installed by individual property owners as septic tanks fail or are decommissioned. 4. Storm Sewer Improvements The proposed replacement of the storm sewer system is considered an essential improvement to address the deteriorated pipe and structures currently in place. The proposed improvements include the replacement of the following storm sewer features: · 767 feet of reinforced concrete pipe (RCP) · Four boulevard catch basins · One storm manhole · Flared end structure at outlet to Owasso Basin Exhibit 2 – Flared End Construction