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Post by culvercitylocke on Nov 12, 2019 11:49:55 GMT -8
Why are they tunneling tail tracks in phase one? won’t that make it impossible for phase two tbms to break though resulting in a much longer and more expensive in-tunnel tbm tear down for the phase two tbms?
Seems like the phase one tail tracks are a legacy of pre acceleration planning, when they thought phase two would open in the 2050s and they needed to build tail tracks for phase one mos operations.
You’d think that the purple line authority would correct this massive contract discrepancy between the phases!
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Post by numble on Nov 12, 2019 11:52:25 GMT -8
Why are they tunneling tail tracks in phase one? won’t that make it impossible for phase two tbms to break though resulting in a much longer and more expensive in-tunnel tbm tear down for the phase two tbms? Seems like the phase one tail tracks are a legacy of pre acceleration planning, when they thought phase two would open in the 2050s and they needed to build tail tracks for phase one mos operations. You’d think that the purple line authority would correct this massive contract discrepancy between the phases! You might be right, not sure how old that information is. |
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Post by numble on Nov 14, 2019 7:20:51 GMT -8
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Post by numble on Nov 19, 2019 11:47:57 GMT -8
Elsie is 25% of her way to Fairfax.
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Post by numble on Nov 26, 2019 19:48:00 GMT -8
October 2019 status reports:
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Post by numble on Dec 26, 2019 19:39:03 GMT -8
November 2019 status reports. Although Section 1 is ahead of schedule, the contractor is estimating the project finishing 53 days late.
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Post by bzcat on Dec 30, 2019 10:30:23 GMT -8
There is probably a lot of contingency and slack still in the phase 1 projection calendar. Contractor has almost no incentive to be optimistic so when they have a delay, they just tack on more days rather than eat into the contingency and reserve days. I agree with Metro that this could very well finish on time.
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Post by numble on Jan 25, 2020 10:32:10 GMT -8
December 2019 project status reports:
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Post by numble on Feb 5, 2020 13:49:19 GMT -8
Latest updates, the TBMs have been slowed down by tar sands and methane pockets. Expected to reach Fairfax station in March 2020.
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Post by numble on Feb 10, 2020 22:18:57 GMT -8
Tutor Perini has found “magnetic anomalies” that are possible oil wells that were previously unknown in the planned path of the Purple Line under Beverly Hills High School. Hopefully it is nothing, but the worst case scenario could be really bad, requiring changing the alignment or removing the anomalies, which would be costly and add delays, especially if it involves digging on the school campus to remove anything.
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Post by bluelineshawn on Feb 11, 2020 18:41:31 GMT -8
Sounds like adjusting the path slightly may be the preferred option. Hopefully whatever they find and decide won't critically derail the schedule.
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Post by numble on Feb 18, 2020 10:30:03 GMT -8
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Post by numble on Feb 26, 2020 15:24:31 GMT -8
January 2020 status reports. It seems the magnetic anomalies currently are estimated to cause a 2 month delay (perhaps longer) and the Section 1 TBMs are going slower than anticipated due to differing site conditions.
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Post by culvercitylocke on Mar 28, 2020 11:58:09 GMT -8
Great idea hopefully BH is down with it Request for Temporary Full Closure of Wilshire Blvd. During COVID-19 Restrictions Summary Metro and the City of Beverly Hills have been exploring alternatives to help expedite the construction of the Wilshire/Rodeo Station. A full closure of Wilshire Blvd. between Crescent Dr. and Beverly Dr. was identified as a potential option to help work progress during the statewide pandemic health restrictions. The full closure would allow the contractor to utilize additional equipment, which would help expedite the completion of piling on the south side of Wilshire Blvd. as well as decking. Metro anticipates that this closure could be in place from 1-3 months; however, upon request of the City, the contractor will restore the street to the current configuration. Implementation of the Wilshire Blvd. temporary full closure could result in a potential time savings of 6 months, when these activities would have otherwise continued through March 2021 under normal conditions. Essentials The proposed work will be going to City Council on March 31, 2020 for their consideration and approval. If you have any questions or comments related to this item, you can e-mail the City at purpleline@beverlyhills.org or call 310-703-1385. For additional construction information, please visit metro.net/purplelineext. For additional information about the upcoming Beverly Hills Council meeting please go to BeverlyHills.org. As part of the State, County, and applicable City orders specific to the COVID-19 response, Metro construction activities are currently included as “Essential” activities. Therefore, construction activities are continuing as permitted by the local jurisdiction. view.s10.exacttarget.com/?qs=631ce297c783c61ec9d5b676a2c63ad45673e0339657e41ae9ce3b695d9a568857e3538824c433553f11434faf9f78d5923f4bbc46f4e0e06d9b0c7c4e616c7ac91af866332f6441b7e8aa069ad64ade |
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Post by andert on Mar 31, 2020 20:48:23 GMT -8
Since there's no traffic BH is closing Wilshire to expedite purple line construction:
Torn about this. On the one hand, it's taking good advantage of the opportunity. On the other, I worry about construction workers being too exposed. They deserve to be safe too. My brother works in construction and is livid that everything in his city is still being labeled as essential even when it isn't.
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Post by usmc1401 on Apr 1, 2020 10:27:14 GMT -8
Glad that the City of Beverly hills made this decision. A good change from past.
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Post by culvercitylocke on Apr 2, 2020 12:24:56 GMT -8
Per the purple line newsletter, constellation has been fully closed as well to expedite water line relocation and the contractor is operating 24/7 to finish it.
Also as of Monday March 30, tunneling is happening in 3 shifts on Elsie so work is happening around the clock
Elsie has bored 3922.5 ft or 88.4%
Soyeon has bored 68.9%
La brea station is 51% complete
Fairfax station is 41%
La cienega station is 29%
25 of the 120 piles for the section three TBM launch pit have been installed.
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Post by numble on Apr 2, 2020 12:29:43 GMT -8
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Post by bzcat on Apr 2, 2020 14:26:40 GMT -8
These are going at a swift pace. Good job by contractors and Metro.
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Post by numble on May 6, 2020 18:03:47 GMT -8
So 2 of the 3 anomalies underneath Beverly Hills High School, in the path of the Purple Line tunnels, are confirmed to be over 100-year old oil wells, and they need to be “re-abandoned” (I guess that means removed?), and I assume tunneling can’t proceed until they deal with it. There’s at least a silver-lining to the schools being closed—this would probably be a much more difficult issue to deal with if school were in session.
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Post by numble on May 8, 2020 15:53:10 GMT -8
Tunneling has begun on Purple Line Section 2, with the launch of Harriet (not to be confused with the Crenshaw Line TBM that is also named Harriet), tunneling eastward from its launch box on Constellation Blvd.
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Post by bluelineshawn on May 9, 2020 5:37:27 GMT -8
So 2 of the 3 anomalies underneath Beverly Hills High School, in the path of the Purple Line tunnels, are confirmed to be over 100-year old oil wells, and they need to be “re-abandoned” (I guess that means removed?), and I assume tunneling can’t proceed until they deal with it. Thanks for the update. I don't know too much about it, but my understanding is that the primary activity of abandoning an oil well is plugging it with concrete and generally I don't think that it takes that long. "Re-abandoning" could mean that they will need to undo what was already done by drilling through it and then abandoning properly. I'm hopeful that this is not a huge deal as I think that it's a very common thing. Not as common in a future subway tunnel, but it sounds like they are only attempting to meet existing standards, not do anything special. |
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Post by numble on May 9, 2020 11:34:53 GMT -8
So 2 of the 3 anomalies underneath Beverly Hills High School, in the path of the Purple Line tunnels, are confirmed to be over 100-year old oil wells, and they need to be “re-abandoned” (I guess that means removed?), and I assume tunneling can’t proceed until they deal with it. Thanks for the update. I don't know too much about it, but my understanding is that the primary activity of abandoning an oil well is plugging it with concrete and generally I don't think that it takes that long. "Re-abandoning" could mean that they will need to undo what was already done by drilling through it and then abandoning properly. I'm hopeful that this is not a huge deal as I think that it's a very common thing. Not as common in a future subway tunnel, but it sounds like they are only attempting to meet existing standards, not do anything special. I guess it’s relative, but they have paused the excavation of a tunnel shaft since around December/January. It doesn’t look like it will impact the estimated completion date since they were so far ahead of schedule, but it can limit how much ahead of schedule they open. It seems it will be resolved, but they needed to get an agreement with the school district to get access to the site, and move some portable classrooms to access the location, which feels like it could have been a huge pain and resulted in more delays if school had been in session. |
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Post by bzcat on May 12, 2020 9:25:12 GMT -8
They launched the TBM despite knowing about the oil wells less than a mile from the launch site. So relatively speaking, they must not be that worried about it being an issue.
Starting from Constellation/Century Park East going east, Harriet should be under BHHS in about a month or so? It only has 1/2 a block to travel before entering BHHS property line.
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Post by numble on May 12, 2020 13:38:13 GMT -8
They launched the TBM despite knowing about the oil wells less than a mile from the launch site. So relatively speaking, they must not be that worried about it being an issue. Starting from Constellation/Century Park East going east, Harriet should be under BHHS in about a month or so? It only has 1/2 a block to travel before entering BHHS property line. The 2 anomalies that are identified as wells are only in the path of one of the tunnels, so I suspect that the one TBM that was launched is the tunnel that does not have the anomalies. I do think the issue will be resolved, however. |
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Post by numble on May 27, 2020 15:47:11 GMT -8
Purple Line status reports for April 2020. Section 1 is just 4.3% behind the Regional Connector. Section 2 is dealing with a water line and oil wells but has an estimated early completion date due to the Wilshire street closure. Section 3 now has a planned progress graph (it’s behind schedule, probably due to change in exit shaft design).
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Post by culvercitylocke on May 28, 2020 19:47:24 GMT -8
What are the “installation of special rings” for section 2? That where they’ll cross through the rodeo footprint?
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Post by numble on Jun 3, 2020 12:53:22 GMT -8
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Post by bzcat on Jun 3, 2020 15:18:48 GMT -8
that means they barely turned it on for a few hours
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Post by numble on Jun 3, 2020 15:54:21 GMT -8
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