South Park Avenue, East 36th Street To East 18th Street

The project is known as South Park Avenue, East 36th Street to East 18th Street as shown on construction plans (PN 4-085-2022). The project is located within existing Right-of-Way of South Park Avenue. The work includes the following:

1. 1. Installation of approximately 5,170 linear feet of new 30-inch Ductile Iron Pipe (Pressure Class 200) or as a bid alternate 30-inch Welded Steel Pipe, complete in place with all valves, fittings, corrosion protection system, and other appurtenances.
   2. Installation of approximately 75 linear feet of new 30-inch Ductile Iron Pipe (Pressure Class 250) or as a bid alternate 30-inch Welded Steel Pipe, complete in place with all valves, fittings, corrosion protection system, and other appurtenances.
   3. Installation of approximately 50 linear feet of new 24-inch Ductile Iron Pipe (Pressure Class 200) or as a bid alternate 24-inch Welded Steel Pipe, complete in place with all valves, fittings, corrosion protection system, and other appurtenances.
   4. Installation of approximately 1,900 linear feet of new 12-, 8-, and 6-inch Ductile Iron Pipe (Pressure Class 350), complete in place with all valves, fittings, corrosion protection system, and other appurtenances.
   5. Installation of approximately 63 linear feet of Welded Steel Casing Pipe per SD-800, complete in place with all fittings, corrosion protection system, and other appurtenances.
   6. Installation of approximately 15 linear feet of 15-inch sanitary sewer replacement, 188 linear feet of 8-inch sanitary sewer replacement, and 13 linear feet of sanitary sewer replacement, complete in place with all fittings required per Pima County Regional Wastewater Reclamation Department (PCRWRD) Standard Specifications and Details for Construction.
   7. Demolition and removal of existing waterlines, installation of service connections, fire hydrants, waterline appurtenances, valves, and fittings, throughout the corridor to maintain a fully operational water system.
   8. Full Depth Pavement Replacement along South Park Avenue: 46S SPI 18th Street to 65N CL 36th Street (Pavement Structural Section No. 1).
   9. Mill and Overlay of Park Avenue/22nd Street Intersection and the Park Avenue/24th Street Intersection (Pavement Structural Section No. 2).
   10. ADA improvements including curb access ramps, sidewalk, detectable warning strips, and buckled sidewalk repair are included on all the project roadways and are to be constructed at the locations indicated in the project plans.

The City of Tucson, Department of Transportation and Mobility (DTM) was tasked the rehabilitation of South Park Avenue, from East 36th Street to East 18th Street, as part of the Proposition 101 roadway recovery work. During the course of design of this portion of Proposition 101, Package 13, it was identified that several existing waterlines within the alignment have inadequate depth of cover for the roadway pavement replacement work. As a consequence of both depth of cover, as well as existing infrastructure age, new water transmission and distribution system mains will installed as part of this project.