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Typical Ontario Streetlight Arm Sizes
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A recent road widening nearly complete. The double median poles here show three arm sizes. In foreground is the 10' arm, next pole is our 12', and the ones farthest in distance are the most common, 8' arms. The project uses 10' arms except for small section seen here. Looks like the longest arms were intentional for the wider median at the bridge, yet they used a few 8' arms for those few lights, perhaps because they ran out of 10' arms!
(Dixie Rd n of Steeles Ave, Brampton, ON)
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I like things usual and organized (our 8ft arm) or super beefed up (our 12ft arm).
I've been pretty observant and noticed the bend in the arm near the cobrahead can be different too, like a wide or sharp bend, or bent in slightly different spots. It varies per manufacturing run. I like sharper bends that are closer to the cobra best.
Also it looks obvious that when they originally built that second half of the bridge, they screwed up the alignment lol. That is as good as it would have gotten anyways lol.
The tallest poles that usually sport 400W HPS are about 50' I think, I made a mental note that poles with "40" NEMA tags are not 40' tall
One of the underpasses has a "1964" stamp, and the other underpass was added to accomodate this widened road in like 2008. I don't think they foresaw a need for a wider underpass in 1964, so they recently "twinned" the bridge with a repo beside it, they don't make these arched overpasses for any other reason anymore. The whole thing was then refurbished to look new.
I believe this style is called a concrete rigid frame, somewhat common in Ontario back in the 50s and 60s. The section of the 400 between Vaughan and Barrie still has a few left in use.