Downtown Chandler Infrastructure improvements

Project Owner: City of Chandler
Project Type: Construction Manager at Risk
Construction Dates: 06/15 to 05/18

This multi-phased Construction Manager at Risk project consisted of wet utility and street improvements. Pre-construction services included conflict designation/potholing for design, estimating, GMP development, value engineering, utility coordination, stakeholder outreach, and budgeting.

GMP 1: Removed/Replaced 1,332 LF of water mains (6”, 8”, and 10”), installed three valves (4” to 8”) and six new water services and meters, removed 55 LF of gas line, and removed/replaced 817 SY of pavement. Work was located near the southwest corner of Arizona Avenue and Chandler Boulevard.

GMP 2: Installed 6,220 LF of new DIP water mains (6”, 8”, and 12”) and connections to existing mains, 63 valves (6” to 12”), 35 new commercial and residential water services and meters, 1,595 LF new VCP sewer mains (8” and 10”), and removed/abandoned 768 LF of existing water mains. We also removed/replaced 5,624 SY of asphalt pavement that included cut and patch for trench work and paving, 1,337 SF of concrete sidewalks and driveways, and 232 LF of valley gutter and curb & gutter. Work was located in the area bounded by Arizona Avenue, Essex Street, Commonwealth Avenue, and Frye Road.

GMP 3: Installed 1,273 LF of new DIP water mains (4” to 12”) and removed 1,110 LF of 8” water line, installed 19 valves (4” to 12”), installed seven water main tie-ins, cut/plug/abandoned 13 water main locations, connected 37 water services, installed temporary PVC water line and services (4” and 6”), 577 LF of VCP sewer pipe (10” and 15”), and completed associated asphalt paving and concrete flatwork restorations. We also removed/replaced 1,879 SY of asphalt pavement that included reprofiling and field design modifications to correct drainage issues and cut and patch for trench work, 663 SF of concrete sidewalks and driveways, 390 LF of valley gutter/curb & gutter, temporary ADA parking stalls, hardscape/landscape repairs, and construction/maintenance of a temporary parking lot. Work was located in the area bounded by Arizona Avenue, Essex Street, Commonwealth Avenue, and Chicago Street.

GMP 4: Constructed a 933 LF SRP concrete U-canal, 933 LF of 36” HDPE bypass, a pedestrian box bridge, 800 LF of glass inlaid sidewalk, 2,200 SY of asphalt paving, 660 LF storm drain, catch basins, a 6,000 SF courtyard that includes artificial turf, decorative hardscape and pavers, and landscaping, decorative metal fencing and railing, lighting, curb/gutter, and ramps. Work was located on and along Commonwealth Avenue from San Marcos Place to Essex Street.