sentences:  Both McCullough - Victorville power lines are maintained by Los Angeles Department of Water and Power (LADW&P) and leave the Victorville substation heading northeast along with the Hoover - Victorville 287 kV line.The Intermountain DC 500 kV power line joins the group of three power lines a short distance later.As the power lines cross Interstate 15 for the first time, they turn and head in a more easterly direction to avoid Barstow.