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A look at MTO pole bases
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Here's some detail shots of some pole bases commonly used with the MTO. The top left and the bottom right pics shows the breakaway base used here. It consists of a aluminium cover and four breakaway couplers inside.
The top right pic shows a disused pole base cast in a Jersey barrier. Some guardrail was installed to cover up the notch for the pole.
Finally, the bottom left pic shows what remains of an old MTO direct bury concrete pole commonly used in the 60s and 70s. This one was replaced with high mast lighting so they cut the pole off. The stump will stay unless they replace the guardrails with a Jersey barrier though.
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We still have some non-breakway poles in use but they're behind a guard rail and the really old ones from the 50s have long since been removed around the early 80s or so.
Most non-breakaway poles here are direct buried concrete and so are impossible to retrofit to breakaway.