The Regina Bypass project is is 43-percent finished..
The 1.88-billion dollar project involves 66 kilometres of four-lane highways, 12 interchanges and 33 bridges.
At a media tour in Regina Wednesday, Regina Bypass project manager Darrell Trapp says the ground around the area is unpredictable because of layers of sand and water.
Trapp says weather has played a major role in adding challenges to the project.
- Regina Bypass Project remains on or ahead of schedule
- Regina bypass construction cameras are operating
When it opens, the bypass is expected to divert 70-percent of truck traffic south around the city.
The first phase of the project, which includes overpasses at Balgonie and White City, is expected to open this fall.
Officials say they expect the project to be complete on schedule in 2019.