Police believe alcohol was a factor in an overnight crash near Winnipeg involving a semi-tractor that went off a bridge into the Red River floodway.

The single-vehicle accident happened Wednesday morning on Highway 59, just south of the city.

RCMP say the northbound truck, which did not have a trailer attached, went over the bridge guard rail and into the dry floodway ditch.

A 59-year-old man who was driving had to be pulled from the wreckage by emergency crews.

He was taken to hospital in stable condition.

Morning commuter traffic was backed up while police investigated and a tow truck lifted the bent and twisted rig out of the ditch.

Alcohol is believed to have been a factor according to RCMP officials. 

With files from the Canadian Press