A worker walks past a bulldozer that ran over a man Monday morning at a Highway 417 construction site near Maitland Avenue. The victim was taken to hospital in critical condition. (CBC)

A man was critically injured when he was run over by a bulldozer at a Highway 417 construction site near Maitland Avenue on Monday morning.

It happened at about 10:40 a.m., Ottawa paramedics said.

A man in his 20s was run down by a bulldozer, said Ottawa paramedics. 0:27

The man, who is believed to be in his 20s, was conscious while he was being treated at the scene.

He suffered serious leg, pelvis and abdominal injuries, and was listed in critical condition, paramedics said.

10:39 M20s ran over by bulldozer near 417/Maitland at construction site. Conscious with serious leg, pelvis and abdominal injuries. Pt stabilized by paramedics and currently at <a href="https://twitter.com/OttawaTrauma?ref_src=twsrc%5Etfw">@OttawaTrauma</a> in critical condition. <a href="https://twitter.com/hashtag/Ottnews?src=hash&ref_src=twsrc%5Etfw">#Ottnews</a>
—@OttawaParamedic

Highway 417 is being widened to four lanes eastbound and westbound between Maitland and Carling avenues. Work is also being done to reconstruct interchange ramps, rehabilitate Merivale Road overpass bridges, replace noise barriers and more.

An OPP cruiser guards the scene. (CBC)

Bulldozer runs over man at Highway 417 construction site

Man in his 20s taken to Ottawa Hospital Civic campus trauma unit in critical condition