Don Valley Stadium of these eventualities the seated capacity would have been raised to 45,000. In addition when the British government cancelled the proposed Picketts Lock stadium in Edmonton, London which was to hold the 2005 World Championships in Athletics, UK Athletics suggested to move the host city to Sheffield using the Don Valley Stadium, but the IAAF stated that having London as the host city was central to Great Britain winning the bid to host the tournament. The championships bidding process was reopened as a result with the Helsinki Olympic Stadium in Helsinki, Finland hosting the 2005 World Athletics Championships. Although Sheffield
Don Valley Parkway to both carriageways. The expressway continues northward, with the Don River sandwiched between the highway and Bayview Avenue. The Parkway passes beneath Dundas and Gerrard Streets and rises onto the 'Don Flats' plateau at Riverdale Park. In this section, the elevation of the highway is close to the level of the river and is liable to flood after heavy rains, as occurred in June 2010, for example. North from Riverdale Park, the valley widens considerably. The expressway rises from the floor of the valley and passes beneath the towering Prince Edward Viaduct bridge, which connects Bloor Street with Danforth Avenue