I would have to ask you this how is it the driver got down the street the 1 st. time in order to spot the trailer?
Also I would like to add this to the conversation it is the utilities responsibility to see that wires are at least 14 ft. high over any area that may be serviced by a truck . This is a nonchargeable accident here . Wires , trees and signs are not to be in the way of any vehicles thats on the roadway . That still doesn't give you the right to take out the whole block some common sense must be used . There is an exception for viaducts that is a fixed structure and should be marked also customers dock doors should be marked if less than 13'6 . Company policies may be differ but it could be argued on reasons of local and state codes . The safety man may or may not know this . If it ever comes that your job may be lost over something of this nature it would be wise to investigate these ordinances .