Quote:
Originally Posted by AuxTown
It doesn't take 8 weeks to get concrete to cure. THis project could have been a 2 week closure with better planning and round-the-clock construction. Instead, we are inconveniencing 140000 drivers daily in each direction. What other city would tolerate this???
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You are correct, AuxTown. Concrete reaches full rated strength at about 4 weeks (if properly cured). However, there is also an amount of time required to prepare for the concrete pour. And then the concrete might be installed in stages, requiring previously poured concrete to cure for a week, or so, before the next is poured. I don’t know the sequence of this construction, but companies seldom book workers and equipment for much longer than needed.
As I understand it, LRT Stage 2 construction necessitated the moving of an MTO-owned sign over the 417. The existing sign spanned the west-bound lanes, just west of where the new Queensview Station pedestrian overpass is built. Since the new bridge would have hidden the sign from view, the sign had to be moved east of the bridge. (I think that the sign could have been added to the side of the pedestrian bridge – but OC Transpo doesn’t seem to want to share its assets.) The deal reached, apparently, was that the LRT Stage 2 construction would be responsible for moving the sign east of the bridge. Which is why this is being called work for LRT Stage 2.
I don’t know, but I suspect that the MTO is getting a new electronic sign installed – since that seems to be its current preference. If that is the case, there may be a lot more prep-work required before the footing can be poured. And, of course, the median wall will need to be reinstated once the footing work is suitably advanced.
I think that it is telling that, even throwing money at the problem so that work hours can be extended into the night, they were only able to shorten the time by a few weeks. This is likely only speeding up the prep-work and clean-up, not getting the concrete to cure faster. Thus, we still have more than a month of this disruption to endure.
Something that I have learned through life is ‘It almost always takes longer.’