Thomas Cavanagh Construction Ltd. – Highway 417 Expansion.


Keeping two lanes of a highway open during 24-hour construction with only a four- and eight-hour period each day during which lanes could be closed kept Thomas Cavanagh Construction Ltd. challenged. The project required the addition of new lanes within the existing Highway 417 corridor in the west end of Ottawa. In Canada, a 400 number indicates the highway is at least four-lane. 

“We had to maintain one lane in each direction at all times,” Project Manager Chris Fischer emphasizes. “We were restricted as to when we could do lane closures. To do some of the work, the daytime window was only between 10 a.m. and 2:30 p.m. The night shift provided us with an eight-hour window from 10 p.m. to 6 a.m. This was the biggest window. So all the paving happened at night. It’s with 180,000 tons of hot mix paving that we’ve completed this project.”


Thomas Cavanagh Construction Ltd. – Highway 417 Expansion.