Install 1″, 2″, 3″ and 4″ 90 degree PVC/GRC elbows. Furnish and install duct bank, lateral ductbank, type 1 and 3 manholes, and drainage bedding, cable racking and grounding for all man-holes. Install Tier 15 Quazite Boxes, 965 LF Concrete Encased 4″ schedule 40 PVC conduit, 650 LF Direct Bury 4″ Schedule 40 PVC conduit, 45 LF Vertical Exposed 4″ PVC Coated/GRC conduit, 885 LF Directional Boring & HDPE conduit under roadways, 54,161 LF of Draka-Blown-in 144 strand fiber with Corning SMF-28 Glass, 5,266 LF of Duraline micro-tube with integrated tracer wire, 5 Coyote box/144 strand fiber splices, post-installation fiber OTDR testing. Install fence grounding that meets 25 Ohms resistance or less ground resistance testing, and ground assemblies at multiple access points. Furnish and install Type 1 manhole lateral of existing mainline ductbank. Install 4/0 bare copper ground ring for Iliff Station, install grounding to steel plates embedded flush with platform surface, install grounding to Track fencing at Iliff Station, perform exothermic welding of ground ring connections. Furnish and install 7 cell microduct, type 6 hand-holes, type 1 man-holes, type-3 manholes (drainage bedding, cable racking and labeling for all man-holes and hand-holes) and install grounding for all man-holes. Andrews Construction is to install PVC 40 underground raceways, manholes, pull boxes, duct banks, including pull strings, mandrel logs, tagging concrete encasement, reinforcing where required, tracing wire, warning tape and all other work required to complete the installation of the Mainline ductbank, Traction Electrification ductbank, Signal, Communications and Low Voltage raceways. Andrews also coordinated the ground testing and site lighting (photometric field testing) for each of the stations, plazas and parking lots. Two platform station also included Fire alarm system installation. Coordination of the construction and procurement for each Power Control Cabinet (PCC) to each of the stations and preformed the installation for each PCC. Installation included the underground raceways for commination and power, ground grid system, overall site lighting, platform grounding, and on site power for all equipment. Location: I-225 Corridor – Aurora, ColoradoĮlectrical Construction of eight station platforms, three public plaza areas and two parking lots.
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