DanD3815 wrote:Hudson line to Stewart airport? I've never heard of that proposal. Is there any information on what the plan would be? I haven't found anything on that
It was a study option rejected in the Level 1 screening results of the MNRR West-of-Hudson Transit Access Study:
http://web.mta.info/mta/planning/whrtas ... eening.pdf" onclick="window.open(this.href);return false;. That option didn't make the cut for Level 2 screening, and was dropped from further consideration because of cost. The only things they're considering now are direct rail spur off the Port Jervis Line, and various connecting buses. Pretty much
all of the study has ground to a halt with no action in >5 years because demand for Stewart is so dodgy.
All that was sketched out about the Hudson Alts. was that there would be *a* new bridge near Beacon. They didn't so much as hazard a guess where, so they just highlighted I-84 on a map and said "alignment TBD". Since it never qualified for further study, no additional details were ever refined.
I bring it up only because that was a real, documented proposal...not because it was a
good one by any means. Every direct rail alt., including the Port Jerv ones, are total losers on cost-benefit. The study can't even come up with a clear bus route that consolidates soft demand well enough. The mere study existence of a direct Hudson Line alt., however, would've been less of a poop sandwich if Stewart connectivity had any Selkirk de-hurdling freight coattails fluffing its flagging fortunes. The all-freight PANYNJ tunnel has yet to show where the EoH demand is for such overkill freight capacity through the city, and at the pornographic rate the Port Authority loses control of construction costs it's liable to cost twice as much as the already obscene estimates. As per the on-topic tie-in to Gateway (seriously...it's in there!
), you can't just stick after-hours freight in the passenger tunnel and declare "Achievement: resources pooled!" The whole prelim engineering for Gateway would have to be thrown in the trash and begun anew to re-anchor a tunnel in soft river silt that can handle the very different weight dynamics of several-dozen car trains full of 286K carloads, with vertical clearances anywhere from 2.5 ft. (Plate F) to 6 ft. (double-stack) taller. That could for-real double the cost and timeline for the Gateway tunnel. It's the reason why a near-century of cross-harbor freight tunnel studies have never considered the NEC alignment and more multipurpose tubes; wrong geology to be attempting anything but a lightweight passenger-only crossing.
Given the general cost-horribleness of all of ^those^ tunnel options, a Selkirk de-hurdler could do a lot worse than dusting off the Hudson-Stewart poop sandwich and building a new multipurpose bridge in Dutchess Co. for ⅛ the price of any freight-rated intracity tunnel bore. The Lower Hudson/Oak Point infrastructure is plenty overbuilt for tippy-top real-world EoH freight volumes and is a short enough direct trip to move every manifest freight they'd need to pack on the night shift and select off-peak slots. I only posit that option as a least-worst alternative because I think this thread
severely underestimates the cost of all the engineering changes required to give Gateway any sort of nebulous flexibility for slipping a freight train through. Current design is not geologically compatible at all, so there are no efficiencies gained by looking at Gateway as some sort of partial solve.
Therefore, if you have to do
something just for doing something's sake, the Stewart rehash is a less obscenely wasteful pooling of capital resources that solves the (real...not overinflated) 50-year demand considerations for NYC freight. But make no mistake...it's still a poop sandwich by most empirical measures, even if those loads end up on the high end and even if Stewart passenger demand magically materializes from somewhere. We've yet to demonstrate that there is a for-real Selkirk Hurdle that's enough of a freight mobility threat to compel building ANY sort of trans-Hudson megaproject. They're all poop-sandwich money pits until the revenue case gets clearer. Some are just worse money pits than others. Right now, the money pits rank like:
PANYNJ tunnel $$$$³ > re-engineered "Greightway" tunnel $$$ > Dutchess Co. "Stew-bridge" $$ > plain-old Hudson Line/Oak Point capacity & clearance management.