Caption: When an agricultural irrigation system utilizing water from Lake Newell was built by Canadian Pacific Railway in 1914, hoping to attract farmers to become settlers, the canal had an aqueduct portion of 1.9 miles to cross one low area, and that intersected the CP mainline a few miles east of Brooks. To manage that crossing, an inverted siphon passed under the track at mileage 63.20 and the water continued northward to supply the rest of the system. Check https://maps.app.goo.gl/fhep8hRtVhMANTXL8?g_st=im for an overview, and for more detail, see https://en.m.wikipedia.org/wiki/Brooks_Aqueduct.

This photo shows the siphon on Wednesday 1974-10-02. But for wanting to photograph No. 1 expected on time 60 miles away at end-of-double-track at Gleichen (http://www.railpictures.ca/?attachment_id=50183), a shot of a train passing the siphon would have been ideal.

That arrangement of aqueduct and siphon was replaced in 1979 by a canal at a slightly lower level in an earthen berm, with a simpler culvert underpass of the railway a short distance east of the siphon at mileage 63.16, with the siphon and portions of the aqueduct now a National Historic Site.