Management (TPM) Detailed Design assignment for the rehabilitation of Highway 401 at Hoggs Hollow Bridge. This is deemed to be the most complex portion of the Ministry’s 401 Strategic Rehabilitation Program. Morrison Hershfield carried out the structural rehabilitation of a total of 12 structures including complete deck replacements at the Hoggs Hollow Bridge, rehabilitation of the pavement structure including concrete base repairs, and was responsible for extensive construction staging and traffic management over multiple construction seasons including provision for winter staging and construction shutdown. The rehabilitation of Hoggs Hollow Bridge is estimated to be an $86-million construction project. Barricade Traffic Services Inc. were in charge of traffic control. The safety needs of the traveling public and workers within the construction zone were met, with minimal disruption to commuters and commercial carriers. Work on the Hoggs Hollow Bridge saw most of the lane closures required done at night to minimize congestion on Canada’s busiest section of highway. The impact of delays on traffic from construction activities on this section of the highway would have been significant if it was not for the detailed construction staging plans and the planned mitigation of traffic impacts that were in place prior to the beginning of the bridge rehabilitation. The rehabilitation of Hoggs Hollow Bridge was completed in 2012 with transfer from collectors to express restored full access to all lanes in both directions. See also Rouge River Bridge List of bridges in Canada References Bridges completed in 1929 Bridges completed in 1960 Bridges in Toronto Don River (Ontario) Road bridges in Ontario