A dump truck driver hit the Vanier Parkway overpass while driving west on Ottawa's Highway 417, leaving the box behind and closing part of the highway.
Ontario Provincial Police tweeted about a collision and lane closure at about 8:45 a.m., on Wednesday. A photo tweeted about 10 minutes earlier shows what appears to be a truck's box leaning against the overpass with debris on the road.
An OPP spokesperson confirmed in an email to CBC that the trailer is "currently stuck under the overpass due to open box," and said there were no injuries.
As of 1 p.m., the westbound lanes of the highway just under the overpass were closed, according to OPP. The Vanier Parkway is open again.
The overpass and exit are just east of downtown Ottawa.
'Boom': driver describes watching collision
Brodie Hobson was driving home Wednesday morning when he saw the dump truck with its bin up ahead of him.
"I was looking at it from far away ... [thinking] 'Is he going to get under that and clear that bridge? I don't think so,'" Hobson told CBC.
He said another truck nearby was honking at the dump truck driver, and all the cars on the highway slowed down before the impact.
"And then boom. The truck just smashed right into the side of the bridge. And it was a really loud bang," he said. "It got jammed, came right off, and that truck just kept going for quite a bit after that."