The transformer had a loaded height of 17 ft. The dual-lane Trail King trailer used for the job was made in 2013 to Crane Rental Corporation’s specifications. The trailer featured telescoping axles that extend from 12ft to 20ft to accommodate over-dimensional loads and more evenly distribute loads over bridges and culverts. It offers suspension beam, perimeter deck, dollies, or bolster options.
The job took five days, this included a fifty-mile haul during in which Crane Rental Corporation’s dual-lane trailer was accompanied by six police and two civilian escorts. A T800 Kenworth four-axle tractor with an automatic transmission, 500HP engine, and 70,000lbs planetary rear axles pulled the entire load, which came in at approximately 700,000lbs altogether.
At the initial storage site the transformer was loaded onto a 24-axle dual-lane trailer using Crane Rental Corporation’s 700t gantries. When the load arrived at its final destination, the transformer was trans-loaded by the same gantries from the dual-lane trailer onto Crane Rental Corporation’s 12-line Goldhofer self-propelled modular hydraulic platform trailer in order to maneuver through the site.
Once in the substation, the hydraulic trailer positioned the transformer. Then the 700t gantries were assembled for a third time to offload the unit to its final position.