Saskatchewan Highway 51

Highway 51 is a provincial highway in the Canadian province of Saskatchewan. It runs from the Alberta border near Compeer, Alberta, where it is preceded by Highway 12, to Highway 4 in Biggar, 1.1 km south of Highway 14. Highway 51 is approximately 155 km long. It passes through the town of Kerrobert, where it shares a 2.4 km concurrency with Highway 21 and Highway 31.

History
The former western terminus of Highway 51 is at Highway 656, 10.5 km north of Springwater, where it met the former alignment of Highway 14. When Highway 14 was realigned between Biggar and Landis, a portion of the bypassed section was renumbered and became part of Highway 51.

In 1999, the thin membrane surface section of Highway 51 east of Kerrobert was tested with a Cold in-place recycling or "CIR" method to rehabilitate highways. This CIR process is a cost-effective method which recycles the top surface of a road. This pulverized material is mixed with asphalt emulsion and spread and compacted back onto the highway surface. This surface is then recovered with a new seal dependent on traffic volume.

Major intersections
From west to east: