David Dahle's photos with the keyword: 69kV

Northern States Power - Minnehaha County, SD

24 Mar 2025 2 2 9
I just liked the design of the angle pole on this old transmission line (its voltage has long since been lowered to repurpose it for distribution service). The leaning pole serves as a 'push brace' to offset the strain of the conductors as it makes a slight turn along the interchange. Push braces used to be a common construction technique, but today, a guy wire on the other side of the pole is preferred. That said, push braces are still used where a guy wire will not work due to the location. (As for the fire trucks, there is a fire protection equipment dealer just to the right)

Weber Ave. sub site

11 Aug 2021 2 238
Dunno if anyone still visits this stream, but here's a pic of the Weber Ave. substation site as it is now.

Xcel Energy - Turner County, SD

28 Feb 2021 2 2 251
A replacement transposition structure on the Lennox to Centerville line - one of the very last 69kV lines on the system with transpositions. The transpositions are among the very last poles on the line that still have crossarms, as almost all of the poles have been retrofitted with large armless posts like the other two. This line is old enough that the company is thinking about an eventual rebuild, and has already replaced the first segment out of Lennox.

Northwestern Energy - Chamberlain, SD

17 Aug 2020 2 2 268
Sorry for the lack of uploads, but this whole pandemic thing has upended everything and made overnight travel just about impossible. This was from only the third trip I made all summer, and it was mainly to check on one antique shop here that had been a good source of insulators over the years after it moved to a new, smaller building... found only one insulator worth taking home and after cleaning I found some hidden damage... Anyhow, it was interesting to see this new switch arrangement, and which was a relocation of the switch from a poorly accessible location in the back (the old switch has been shelled out and bypassed).

Wessington Springs, SD municipal

28 Jun 2020 2 278
A friend invited me to his 'milestone' birthday party which was held at his hometown (Huron) so I decided to grab my camera and head up - hadn't seen him or his wife since the pandemic began, so I was more than happy to go. First up was to check on a couple things at the Wessington Springs muni; they've put another leg of the system underground so there wasn't much new for me to photograph, but I did get a closer look at the former lighting plant - it's more a storage building for the city these days.

Xcel Energy - Sioux Falls, SD

29 Nov 2019 2 2 196
A recent picture of the South Sioux sub. Sure looks different without the 4160V wing and the shrubs that once stood along the fence.