Issue link: https://www.e-digitaleditions.com/i/1347119
46 I ICT TODAY 4 x 2" Conventional Install vs. 7- Way OD/ID 22/16 Conventional Micro Technology 4x2 inch SDR11 432 SMF Fiber Cable Cost $/ft 7-way 432 SMF Micro Cable Cost $/ft Conduit 4 each 2-in SDR11 $3.20/ft ($0.80/ft) 7-way Duct 22/16 $3.68 Fiber Cable 432 Non-armored $4.19/ft 432 SMF Micro Cable $3.31 Material Cost $7.39 $6.99 Conduit Installation Boring 4 x 2-inch Conduits $11/ft Boring 1 x 2.6-inch OD 7-way $9.95/ft Fiber Installation Pulling $1.35/ft Blowing or Jetting $0.58 Total Cost $19.74 $17.52 Construction Cost for new UG conduit and fiber (Phase 1 & 2 totals) Approximately 385,000' of new conventional UG conduit and 432 Fiber 385,000' x $19.74 = $7,599,900 Approximately 385,000' of new UG 7-way micro duct and 432 Fiber 385,000' x $17.52 = $6,745,200 Note: Initial construction cost for conventional provides only 3 additional ducts for future cable placement as opposed to 6 future ducts in the 7-way micro duct. Note: Cost for installing additional cables on the US33 SMC with air-jetting as opposed to conventional pulling results in approximately 57 percent labor savings. TABLE 2: Case study cost comparison details. PROJECT RESULTS Construction and cable placement cost savings using the 7-way micro duct in place of traditional 4 x 2 inch conduits resulted in approximately 12 percent savings for the construction of the fiber loop. As noted, there would only be three additional 2-inch ducts using the conven-tional method as opposed to having six additional micro ducts with the 7-way duct system. It requires approximately half the installation time than traditional HDPE and pulled-cable practices. The air-jetted cable installation gives ODOT the ability to rapidly install additional micro cables for added connectivity at any time. The air-jetting cable installation can be as high as 10,000 feet per day (Table 2).