Contest #622: the Brooks Aqueduct, Brooks, Alberta, Canada

Built in 1914, the Brooks Aqueduct was to irrigate a large section of land near Brooks, Alberta. It was the largest concrete structure in existence at the time and crossed a lowland area. The Canadian Pacific Railway passed through the area and the Aqueduct passed under the railway with an inverted siphon.

The siphon is an inverted reinforced steel concrete pipe that operates on the Venturi Principle. It was built to a depth of 40 feet underneath the tracks and narrows in the middle to increase the pressure on the water passing through.

The Aqueduct

And the siphon

Found before the hint:

  • Phil Ower
  • Lighthouse
  • Garfield
  • Eloy Cano
  • Jean Noyau
  • hhgygy
  • Walter_V_R

After the hint:

  • Martin de Bock
  • Paul Voestermans

Contest #621: Skeleton Man Walking Skeleton Dinosaur, near Murdo, South Dakota, US

**** LATE POST OF THE REVEAL (Sorry folks, blame Paul, not Andrew) — LOOK FOR #622 BELOW THIS POST!!! ****

Approximate Location: 43°53’13″ N 101°07’54″ W

Skeleton Man Walking Skeleton Dinosaur

Driving along Interstate 90 in the middle of South Dakota, US is an interesting art installation. A man walking his dinosaur!

Designed and constructed by Clarence Hullinger, it’s just outside 1880’s Town near Murdo. Not that humankind and the dinosaurs existed in the same epoch, it’s just a cool piece of art in the middle of nowhere!

Found without digging:

  • Walter_V_R
  • Eloy Cano
  • hhgygy
  • Garfield
  • Phil Ower
  • Lighthouse
  • Martin de Bock
  • Jean Noyau
  • Nancy Barbato Sinatra
  • David Kozina
  • Paul Voestermans

With help from the hint :

  • Rob de Wolff

Contest #620 – Iraka Apartment Complex, Usaquén, Bogota, Colombia

Approximate Location: 4.708972°, -74.027852°.

Not much to say about this one — it was chosen for the shape in Google Earth, not because of any particular significance of this particular housing block outside of Bogota.

Those who found it before the hint:

  • Rob de Wolff
  • Nancy Barbato
  • Eloy Cano
  • Walter_V_R
  • Garfield
  • hhgygy
  • Lighthouse
  • Farceur
  • Martin de Bock
  • Phil Ower
  • Paul Voestermans
  • Wista

And after the hint:

  • Yusef Yakub Hoca Fendi

This ends the circle series. Congrats to the winners of 611-620, Nancy Barbato, Lighthouse, Martin de Bock, and Phil Ower, all with perfect 20’s.

Contest #619: Church Street Electrical Substation, Jacksonville, Florida, USA

Approximate location: 30°19’59.71″ N 81°40’08.62″ W

Sorry, best picture I could come up with — electric companies like JEA are pretty tight-lipped about their infrastructure and they don’t post a lot of details or pictures — this is one of the reasons this was a pretty hard one.

This is an electric substation, used to change voltages in an electric grid, in this case, since it is in the middle of a city, probably from either a transmission grade line (200KV and above) to a distribution grade (less than 200KV) voltage or from one distribution grade to a smaller one. Then, smaller transformers near the houses/businesses step it down further, in this case to the US standard of around 120KV at 60hz.

As many of you know, my day job is in the electrical generation and transmission industry. While I don’t work in substation construction or engineering, I know folks who do, and I asked them about this. None of them had ever heard of a round (or oval) substation before. Subsequently, I’ve been told this isn’t the only one out there, but it is quite rare.

As to Garfield’s question about why I didn’t use the other one (the oval one), until Phil Ower pointed it out, I hadn’t seen it.

Those who found it before the hint:

  • Paul Voestermans
  • Martin de Bock
  • Lighthouse
  • Eloy Cano
  • Phil Ower
  • Walter_V_R
  • hhgygy
  • Nancy Barbato

and after:

  • Rob de Wolff
  • Farceur
  • Wista
  • Garfield
  • David Kozina