Quote:
Originally Posted by cabotp
That is a disregard. I always thought when they did start building it they would dig up the trench and try to get a working road above as soon as possible. It didn't have to be nicely paved or green grass. But something that could be used. But alas it wasn't to be.
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It may not be obvious if you don't have an engineering/construction background but after the roof section is poured there is a 28 day period that's required before any backfill can be completed to ensure the concrete is at sufficient strength. As well, you can just open a partially built road! There are utilities to be replaced, storm drains to be hooked back up as well as streetlighting and signal conduits. It's more than just backfill and asphalt.
Someone earlier was complaining about the lack of crossings on Cambie but all the arterials and some collectors were always open: Marine Dr., 49th, 41st, KE, 19th, 16th, 12th, Broadway and 2nd.
Given the budget constraints - it was the best delivery method. People need to stop talking about boring from KE because that would have more than tripled the cost of the stations and tunnel in that section and made the project unfeasible.