Manitoba Highway 1A
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| Portage la Prairie segment | ||||
| Length: | 11.30 km (7.02 mi) | |||
| West end: |
 PTH 1 (TCH) west of Portage la Prairie
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| Major junctions: |
 PR 240 north (Tupper Street N.)PR 240 south (5th Street S.E.) |
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| East end: |
PTH 1 (TCH) east of Portage la Prairie
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| Brandon segment | ||||
| Length: | 19.90 km (12.37 mi) | |||
| West end: |
PTH 1 (TCH) near Kemnay
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| Major junctions: |
 PTH 10 (18th Street) PR 457 east (Veterans Way) |
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| East end: |
PTH 1 (TCH) / PTH 10 in Brandon
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| Highway system | ||||
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Provincial Trunk Highway 1A (PTH 1A) is a number used for two provincial highways in the Canadian province of Manitoba. The two sections are located within Portage la Prairie and within and west of Brandon.
The section at Portage la Prairie is also known as Saskatchewan Avenue and like most alternate spurs, it was the old route of PTH 1 until its current alignment was built. The highway is an alternate route that goes through Portage la Prairie. The highway in Portage la Prairie is 11.3 kilometres (7.0 mi) westbound and 10.7 kilometres (6.6 mi) eastbound. The speed limit is 50 km/h (31 mph) within city limits unless otherwise posted, becoming 90 km/h (56 mph) on both sides approaching PTH 1.
The highway received its current designation after the Portage la Prairie bypass was completed and opened to traffic in 1970.
This section serves Manitoba's second largest city, Brandon. It is known as 1st Street north-south and Victoria Avenue east-west inside the city limits. The route is often used by trucks and buses to Brandon, as well as commuters and tourists and campers. The speed limit is mostly 50 km/h (31 mph) in the suburban area, and 100 km/h (62 mph) in the rural areas. The length of the highway is 19.9 kilometres (12.4 mi).
Large trucks are not permitted to travel on the section between the west city limits and the Trans-Canada Highway near Kemnay due to a substandard railway underpass east of the small community. Not only is the height of the underpass substandard (12 feet, 2 inches), there is no shoulder on either side of the highway. As well, motorists would also need to negotiate a very sharp curve on both sides of the underpass before entering it. These factors make for a very tight entry into this area for both eastbound and westbound motorists. Eastbound traffic on the Trans-Canada Highway encounters an sign advising large trucks requiring access to Brandon to continue traveling on PTH 1 about one kilometre before the junction.
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Wikipedia