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Originally Posted by hughfb3
Thank you Numble. I love that you are putting up informational literature in your posts for us to read. I haven’t seen that worksheet. Where did you find it?
It’s interesting they have a $120 mil per mile quote for Aerial LRT in this 2012 study. Im curious why Crenshaw phase 2 which is mostly elevated costs closer to $300 m per mile. Does anyone know or have a source?
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I found the worksheet in the 2012 study of the options for the Sepulveda Pass. You can see that they have other cost items in the report, such as $504 million/mile for subway.
Here is Crenshaw North's feasibility/alternatives study:
https://www.metro.net/media/projects...shaw_north.pdf
All options contemplate a tunnel at the beginning and end of the alignment. As you can see on page 18, if a street is less than 60 ft wide, they need to go underground. On page 29, they comment that the La Brea option can reduce costs by $600 million if they go with an at-grade option in Hollywood.
Page 129 of the PDF splits out the aerial and tunneling portions of the different options. Every option except La Brea has more miles of subway tunnels than of aerial viaduct. La Brea has 3 miles of tunnels and 3.3 miles of aerial viaduct.
You can see how they applied the 2012 ROM costs (adjusted for inflation) to the Crenshaw North:
La Brea ($3 billion estimated cost in 2017 dollars):
3 miles subway @ $504 million/mile
3 underground stations @ $100 million/station
4 portals @ $50 million/portal
3.3 miles aerial @ $120 million/mile
4 aerial stations @ $50 million/station (Expo's Culver City station was $54 million in 2008)
= $2.5 billion in 2012 dollars
Adding in inflation of 3% per year (Metro says 2-4% inflation), that is $2.9 billion in 2017. So it looks like things are in line with the 2012 ROM cost spreadsheets. I didn't cover all costs. There are 2 "aerial transitions" and 2 "long-span bridges" that I did not include because I don't know how much they cost.
By the way, West Hollywood is not in favor of any lines that use aerial viaducts. Their city council are prepared to formally oppose aerial alignments:
https://www.wehoville.com/2018/09/05...uncil-members/
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Residents of the city’s West Hollywood West neighborhood and members of the City Council spoke out Tuesday night against the idea of an elevated Metro line along San Vicente Boulevard, with some also expressing concern about a possible elevated line along La Cienega Boulevard.
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Leslie Karliss, speaking for the West Hollywood West Residents Association http://www.whwra.org/, expressed concern about the impact on the neighborhood of an elevated train along San Vicente. She said that an analysis by Metro of the options shows that the benefit of an extension along San Vicente isn’t significantly better for riders or businesses than the other options, nor that much more expensive. However an elevated rail extension along San Vicente would “cut in half an established family of single-family residents and would have a negative environmental impact,” she said.
Karliss’s concerns were echoed by Richard Giesbret of WHWRA and Kimberly Winnick, another resident of the area. Winnick described the stretch of San Vicente from Melrose to Santa Monica Boulevard as a “festival space” bordered on the west by West Hollywood Park and the West Hollywood Library and on the east by the Pacific Design Center with its large open plaza. “Together they can be a fabulous public space, but not if you have an El down the middle of it,” Winnick said, using a term to describe an elevated train.
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City Councilmember John D’Amico said that the Council should tell Metro it won’t support an elevated or on-grade line along San Vicente or La Cienega. D’Amico called out what he described as insensitive decisions by Metro in demanding that West Hollywood make clear its opposition without waiting for Metro to finish its analysis of the five options. One thing he called out was Metro’s elimination of an extension to the Sunset Strip as an option.
“Metro is not putting a line to the Sunset Strip, the most famous boulevard in Southern California, maybe other than Venice,” D’Amico said. “… It’s just extraordinary to me how blind they are. They don’t know what they’re doing when it comes to West Hollywood. They’re completely unconscious.”
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Council members John Heilman and Lauren Meister and Mayor John Duran also expressed their opposition to elevated or ground-level rail lines. Councilmember Lindsey Horvath, who has been one of the most active council members in lobbying Metro for the extension through West Hollywood, said no one has actually advocated for an aerial line along San Vicente Boulevard. Horvath said she is confident that West Hollywood has Metro’s attention because of its willingness to commit to investing in the extension.
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