Aqua Systems 2000 Inc.

Leaders in water management and control

Langemann® Gate Installation – St. Mary River Irrigation District, Lethbridge Lateral - Head Gates, Lethbridge, AB

PDF icon Project Information Sheet1.47 MB


Downstream Flow control


500 cfs (14.2 CMS)

Gate Size

14 ft (4.3m) x 9.75 ft (3.0m); 7.7 ft (2.3m) of movement.


2 x 50-watt solar panel complete with 4 x 12 VDC deep cycle batteries

Drive Train

½ HP - 24 Vdc motor. Helical worm speed reducer. Roller chain in omega configuration. Rising masts.

Gate Speed

3.5 inches/min. (90 mm/min.)


Control Microsystems SCADA Pack and gate position complete with Flow control

Site Description

A two-bay reinforced concrete check drop structure. The installation takes advantage of the Langemann gate’s unique features. No structure modifications were necessary. The Langemann Gate replaces Radial gates.