Quote:
Originally Posted by Biff
Today I noticed something I had never seen before.
I was looking at the roadwork repairs for the east-bound lanes of McGillavray between Irene and Pembina and was amazed. Now i have seen all types of construction, repairs and reconstruction before.....or so I thought. Usually for repair and overlay they replace worn concrete joints with cut-out patches, possibly diamond grind and then lay an asphalt overlay. Here the repaired the joints, replaced the curbs with I thought unusually tall concrete curbs (at least 18" or more) and are now laying a base of approximately 10" of crushed aggregate over the existing concrete street. I presume they will then put an asphalt overlay over top.
I just thought this was odd as I had never seen them lay aggregate over old concrete. I realize that the normal method of overlaying concrete streets with asphalt doesn't last long, usually no more than 2 or 3 years before the concrete joints start heaving up the new asphalt overlay.
Anyways, just an observation I had.
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They did the same thing on Eastbound McGillivray on the previously resurfaced section nearer to Waverley. I thought it was odd back then too.
If you look at the drawings for it, the city explicitly asked for that:
http://winnipeg.ca/finance/findata/m...-3340-5-R1.pdf