length was recommended to be eight lanes wide, and many interchanges will be rebuilt for safety and capacity reasons. In particular, one interchange at Parkdale Avenue will be rebuilt by buying the houses on the south side of Westmount Avenue and moving the ramp to that location thus eliminating the use of Westmount Avenue as the off ramp. The recommendations were significantly scaled back from the beginning of the study process due to public opposition. In August 2007, the Island Park Drive overpass underwent rapid bridge replacement, a novel process in Ontario at the time. The replacement bridge was built nearby in Hampton Park. In Kanata, Highway 417 was widened from four/six lanes to eight lanes between Highway 416 and Palladium Drive, with the ramp for incoming traffic from Highway 416 being extended as far as Moodie Drive, where it merges to the left side of the westbound carriageway. From Moodie Drive to Palladium Drive the additional leftmost lanes are designated as HOV lanes. Highway 417 was also widened from four to six lanes between Palladium Drive and Highway 7, concurrent with Highway 7 to Carleton Place being upgraded to a freeway including the expansion of its terminus interchange with Highway 417. The work on the westbound lanes was completed in late-October 2014, with the eastbound lanes completed in mid-November 2014. This expansion was intended to relieve congestion, especially when events occur at Canadian Tire Centre. The segment between Nicholas Street and Ottawa Road 174 was widened with an additional two lanes per direction, construction of which began in 2013 and completed on-time in 2015. The additional pair of lanes were used as bus lanes temporarily, until 2018, at which point they became general traffic lanes. This project involved the replacement of the Nicholas Street and Vanier Parkway overpasses as well as widening the Rideau River bridges. Future The MTO plans to further extend Highway 417 westerly through the Ottawa Valley by twinning and realigning the existing route to a four-lane freeway beyond Arnprior, where it currently merges into a two-laned Highway 17. Route planning has been completed to Pembroke, with a bypass to the east of the Cobden area. The second phase of the extension to be built (phase 1 was the section around Arnprior) is a extension past Campbell Drive to Scheel Drive northwest of Arnprior, under construction and completed in 2016. Phases 3 and 4 total including