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5.0 ENGINEERING DESIGN, CONSTRUCTION AND RIGHT-OF-WAY <br /> ACQUISITION <br /> ' 5.1 Structures, Right-of-Way, Construction and Maintenance <br /> 5.1.1 Transmission Structures <br /> The 115 kV transmission line is proposed to be constructed partially as a single circuit line and <br /> ' partially as a double-circuit line with both portions using single-pole, galvanized or weathering steel <br /> poles placed on drilled pier foundations. Pictures of the proposed structure types are shown below <br /> Figures 3 to 5. <br /> ' Figure 3 Figure 4 <br /> Photo of Typical 115 kV Double Circuit Photo of Typical 115 kV Single Circuit <br /> Steel Davit Arm Structure Steel Davit Arm Structure <br /> 1 <br /> 211V - <br /> 1 <br /> I <br /> I <br /> 1 <br /> 1 <br /> Orono Project June 7, 2011 <br /> MPUC Docket No. E002/TL-11-223 21 <br />