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King's Highway 420 -

Highway 420 is a short route that leads from the Queen Elizabeth Way easterly to both Downtown Niagara Falls, and the Rainbow Bridge.  Despite the fact that the Highway 420 designation first materialized in the 1970s, Highway 420 is actually a very historic route.  Much of the highway is a former alignment of the Queen Elizabeth Way that was opened years before the Fort Erie leg of the QEW was constructed.  Recently, Highway 420 underwent a major rehabilitation for much of its length.  Part of this project was done as a joint venture between the Province and the Region of Niagara.  Since this reconstruction, the portion of Highway 420 east of Stanley Avenue is now under the jurisdiction of the Region of Niagara, and no longer signed as a provincial highway.  Despite this, this portion of road is still considered a provincial highway, as there is a connecting link agreement between the MTO and the Region of Niagara.

New Style Highway 420 Shield


Western Terminus:  Highway 420 ends at an at-grade intersection with Montrose Avenue in Niagara Falls.

Eastern Terminus:  At the Rainbow Bridge Bridge Entrance.

Length:  4.6 km.

Multiplexes:  None

Freeway:  Highway 420 is a freeway from Montrose Road easterly to Stanley Avenue in Niagara Falls

AADT (2002):  Highest:  34,300 from Dorchester Road easterly to Drummond Road in Niagara Falls;

                              Lowest:  11,600 from Victoria Avenue to the Rainbow Bridge entrance.

Road Info:  Before quite recently, Highway 420 was in relatively poor shape for its entire length.  In the past few years however, most of Highway 420 has been extensively reconstructed, and is now in excellent condition.  Speed limits on the 420 range from 80km/h on the freeway section, to 60km/h where it is a conventional city street.


Highway 420 information:  

Detailed Route information available below
Virtual Tour and other photos of Highway 420   History of Highway 420
Photographic History of Highway 420

Table with 4 columns shows Highway 420 information when it is a conventional city street.  Table with 5 columns shows Highway 420 information when it is a freeway.  Information is arranged from East to West:

Proper Municipality Name

Community Name


Intersecting Road

Proper Municipality Name Distance Freeway Interchange North / West Control City South / East Control City
City of Niagara Falls Niagara Falls 0 km / 4.6 km Montrose Avenue (Niagara Road 98)
City of Niagara Falls 0.4 km / 4.2 km Queen Elizabeth Way Toronto Fort Erie
City of Niagara Falls 1.1 km / 3.5 km Dorchester Road

City of Niagara Falls

Population: 76,000

City of Niagara Falls 2.5 km / 2.1 km Drummond Road
At Stanley Street:  EB: Freeway section ends.  WB: Freeway section begins.
City of Niagara Falls Niagara Falls 3.1 km / 1.6 km Stanley Avenue (Niagara Road 102)
City of Niagara Falls Niagara Falls 4.1 km / 0.6 km Victoria Avenue
City of Niagara Falls Niagara Falls 4.6 km / 0 km Falls Avenue & Rainbow Bridge Entrance.
Highway 420 Ends

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Copyright (c) 2004-2010, Scott Steeves (Webmaster)

Page last updated:  August 25th, 2005

Page created:  February 27th, 2004