The Ministry of Environment has been called after a tractor trailer flipped on a bridge in Bruce County and dumped 34 tonnes of asphalt onto shore, as well as into the Saugeen River.
The crash happened Tuesday at about 4:30 PM on Bruce Road 40, roughly 1.5 kilometres west of Bruce Road 3.
Saugeen Shores Police say the truck and trailer were approaching a bridge when the driver lost control of the vehicle.
The road conditions were slushy and icy due to a recent snow and a change in the temperature.
The trailer unit of the truck took out a guard rail along the side of the road and then ended up at the east side of the bridge structure.
When the vehicle stopped, the truck and trailer unit had turned onto its side and the trailer was on the embankment leading down to the river.
The driver of the vehicle was not injured.
Bruce Road 40 was closed for 21 hours, while heavy tow equipment was brought in to upright the truck and trailer.
The Ministry of Environment and Bruce County Roads were contacted to deal with possible environmental and bridge damage.
The road reopened at about 1:30 PM on Wednesday.