crs1026
Superstar
Lest someone say it requires a rolling blackout to do the hydro corridor rebuild; let's assume that's not necessary, especially if only one or two pylon corridors are shut down at a time;
The point that I managed to mangle in my post was - the rail right of way is so narrow, you don't need to eliminate the whole Hydro corridor to build the bypass. Quite possibly only one or two of the tower lines would have to be removed to create an appropriate spacing. That greatly reduces the magnitude of the whole problem, setting aside issues of gas lines, fibre optics, or whatever else is up there.
I suspect that if burying transmission cables was economically superior, Hydro One would already be doing it, but the cost/benefit comparison changes considerably if we can leave the 99-year life cycle planning to them and only worry about the immediate cost/logistics of clearing out what the rail line needs.
drum118's concerns are legitimate, and reduces likelihood, increases timecales, but this doesn't cancel the thought experiment.
So here comes the new question.
-- what mitigations are needed to change the mind of a future construction industry minded guy (like drum118) in the future few generations? I'm talking, hypothetically, of course, as a legitimate thought exercise.
Fair question. Thought experiments are worthwhile, but let's remember where we started. A group of elected officials are out of the gates promoting a study with the agenda of getting Metrolinx to promptly change its short to medium term priorities, on the premise that the Milton and Kitchener line projects can be speeded and made cheaper if freight is moved off the lines to a bypass as quickly as one can be built, as opposed to proceeding to qualify and construct mixed freight-passenger corridors as currently planned.
We likely all agree with the theory of a "full-feature" bypass as a viable long term enhancement to the GTA. The question that needs priority is, would a bypass project now (and now including that minimal level of separation needed to protect Hydro, respect 407, and accommodate other utilities) speed the Milton and Kitchener upgrades, and at what cost or savings. Those lines can't be deferred while we flesh out the long term initiative.
- Paul