Ontario Highway 400A

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Orillia
)
Location
CountryCanada
ProvinceOntario
CountiesSimcoe
Highway system
← Highway 400→ Highway 401

King's Highway 400A was a

Coldwater
that opened in late 1959. The Highway 400A route number was only used internally as the road has always featured Highway 400 signage in the southbound direction and Highway 11 signage northbound. In 1997, Highway 400A was eliminated when the road was redesignated as an extension of Highway 11, resulting in Highway 11's southern terminus being directly at Highway 400, while the rest of Highway 11 south from Barrie to Toronto was downloaded to municipal authorities.

Route description

The short highway features a narrow

grass median for the majority of its length, and has a speed limit of 100 kilometres per hour (62 mph). On average, the highway is used by approximately 11,900 vehicles daily.[1] The route began as Highway 400 "exits" on a semi-directional ramp that crosses above via a flyover. Unusually, traffic to and from Highway 400 (colloquially known as the Highway 400 extension) enters and exits at the right of the roadway, while traffic to and from Highway 400A/11 simply continues on the same roadway. This split interchange is also incomplete; drivers must either use the Forbes Road and Penetanguishene Road interchanges, or continue southbound into Barrie and switch direction at Duckworth Street in order to travel from southbound Highway 400A/11 to northbound Highway 400 or from southbound Highway 400 to northbound Highway 400A/11.[4]

After the interchange with Highway 400, the highway ascends, with grasslands to the east and an embankment to the west, then gently curves to the northeast. As it crosses Simcoe County Road 93 (Penetanguishene Road), formerly Highway 93, the former highway ended as it continued as Highway 11.[5]

History

Highway 400A formed the original routing of Highway 400 from 1950 to 1959.[6] In 1950, the then-incomplete freeway was extended north through the city of Barrie to the junction of Highway 11 and Highway 93 in Crown Hill; the entirety of Highway 400 would open on Dominion Day in 1952.[7]

In the late-1950s, the construction of the

Crown Hill junction. To remedy this situation, the 1.1 km (0.68 mi) gap between the original terminus and the new turnoff was internally designated as Highway 400A.[8] The highway has never been signed as Highway 400A. Instead, northbound it is indicated as Highway 11 and southbound as Highway 400.[9][10]

Restructuring of the provincial highway system resulted in Highway 11 south of the Crown Hill interchange being transferred, or downloaded, to local municipalities on April 1, 1997.[3] Highway 11 then absorbed the entirety of Highway 400A, as a result Highway 11's southern terminus was shifted to meet Highway 400 directly at the split interchange.

Construction began north of Barrie in April 2013 to replace the overpass at this split interchange. [11] The new structure, designed to accommodate future highway expansion of the former Highway 400A, was completed in October 2015. The original overpass, built during the 1950s, was demolished during an overnight closure on December 13, 2015. The overall cost of this project was C$8.5 million.[12][13]

Exit list

There were only two interchanges along Highway 400A; the start and end termini. The entirety of the highway is now part of Highway 11, and is located within Simcoe County. 

Locationkm[1]miDestinationsNotes
 Highway 400 continues south towards Toronto
Toronto
Northbound exit and southbound entrance
1.10.68 
Penetanguishene
Formerly Highway 93
 Highway 11 continues north towards North Bay
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Closed/former

References

KML file (edit • help)
Template:Attached KML/Ontario Highway 400A
KML is from Wikidata
Sources
  1. ^ a b c Ministry of Transportation of Ontario (2007). "Annual Average Daily Traffic (AADT) counts". Government of Ontario. Archived from the original on July 6, 2011. Retrieved May 26, 2011.
  2. ^ "Open 400 Link to Coldwater". The Toronto Star. December 24, 1959. p. 18. The new, 22-mile extension from south of Crown Hill to Coldwater will be ready for traffic this afternoon.
  3. ^ a b Highway Transfers List (Report). Ministry of Transportation of Ontario. April 1, 1997. p. 7.
  4. ^ Google (May 28, 2011). "Highway 400A route and interchange with Highway 400" (Map). Google Maps. Google. Retrieved May 28, 2011.
  5. ISBN 978-1-55198-226-7
    .
  6. ^ Shragge & Bagnato 1984, pp. 89–92.
  7. ^ Shragge & Bagnato 1984, p. 89.
  8. ^ A.A.D.T. Traffic Volumes 1955–1969 And Traffic Collision Data 1967–1969. Ontario Department of Highways. 1970. p. 5.
  9. ^ Google (August 27, 2014). "Streetview Imagery of Northbound Signage at Highway 11/400/400A Split" (Map). Google Maps. Google. Retrieved August 27, 2014.
  10. ^ Google (August 27, 2014). "Streetview Imagery of Onramp Signage for Southbound Highway 400 at Penetanguishene Road" (Map). Google Maps. Google. Retrieved August 27, 2014.
  11. ^ McInroy, Ian (December 8, 2014). "Massive Hwy. 400/Hwy. 11 Split Project Reaches Milestone". The Barrie Examiner. Archived from the original on June 11, 2016. Retrieved May 18, 2016.
  12. ^ Staff (December 13, 2015). "Highway 11 Reopens After Overnight Bridge Removal". CTV Barrie. Retrieved May 18, 2016.
  13. ^ McInroy, Ian (December 10, 2015). "Highway 400/11 Split Bridge is Coming Down". The Barrie Examiner. Archived from the original on August 10, 2016. Retrieved May 18, 2016.
Bibliography
  • Shragge, John; Bagnato, Sharon (1984). From Footpaths to Freeways. Ontario Ministry of Transportation and Communications, Historical Committee.
    ISBN 0-7743-9388-2
    .
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