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Originally Posted by Zassk
Ten years ago, when the various Sea To Sky route options were being presented and debated with open houses, the impression I got was that a Rural Freeway Divided 100 km/h design would be 2x to 3x more expensive than the Arterial 80 km/h that was actually built.
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Very true. The SKS corridor is mountainous. A RED or RFD, 100 km/hour design along that corridor would have increased costs exponentially with more viaducts, longer bridges, more blasting, concrete retaining walls, etc. I spoke with one of the project engineers at the time about same.
While the overall design was not my preference, I am quite happy with the improvements considering budgetary limitations.
That said, however, am not happy with the design of much of the SFPR (RAD/80 km/hr design speed) considering that same was constructed over relatively "flat" terrain.
Quote:
Originally Posted by Zassk
If the Coquihalla Freeway is the gold standard, we have to remember that the Coquihalla was the most expensive freeway in the world per km at the time it was built.
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And I would consider the $1 billion/ 23 km section of the Kicking Horse Canyon section of Hwy, east of Golden, to be the most expensive rural section of highway to be built in Canada, with its 100 km/hr RED design.
Quote:
Originally Posted by Zassk
The NDP tried it the following decade with the Island Highway through the gentle terrain of their heartland, and discovered that even $2 billion cannot get you a full freeway, at least not if you build it at union labour rates.
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I will say that the Nanaimo By-pass or Parkway (even with its many signalized intersections) is a very well designed and beautiful stretch of highway - with a 100 km/hr RED design. Actually always a fave drive of mine.
North of Nanaimo, they incorporated an old 1970's, 4-lane section with an 80 km/hr design speed, through Nanoose Bay up to the Craig's Crossing interchange. The rest of Hwy 19 northward is also a great design - a mix of RFD/RED with a 100 km design speed.
Just wish that they didn't cheap out with the concrete median barrier for the last section up to Campbell River. A continuation of the depressed grass median would have been more aesthetically pleasing.
South of Nanaimo, BC MoT went from an initial RED design to an RAD design due to cost factors. And of course, the Victoria western approaches are an U/RFD design
With a 100 km/hr design speed, it can be comparatively easy to eventually upgrade the highway to a RED or RFD standard.
Not so much an 80 km/hr design. In the instance of the SPFR, it would need to be entirely rebuilt from the base up for an RFD, 100 km/hr design.