I totally forgot seeing this line long ago before I took pictures of them. It's one of the last City of Lethbridge double verticle lines on their grid which featured those strange polymer insulators! www.google.com/maps/@49.7001102,-112.7796109,3a,15y,29.93h,100.44t/data=!3m7!1e1!3m5!1s3EWIxqv58ZjT2_pzXrFdwQ!2e0!5s20090801T000000!7i13312!8i6656