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Post by numble on Jun 4, 2020 9:05:06 GMT -8
They will not tunnel under Beverly Hills High School until 3 wells are abandoned, and they expect the abandonments to be done in August.
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Post by bzcat on Jun 5, 2020 9:28:37 GMT -8
That makes more sense  So Ruth has gone across the intersection, past the old AAA building, and right on the fence line of BHHS ground. |
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Post by culvercitylocke on Jun 5, 2020 16:46:01 GMT -8
They will not tunnel under Beverly Hills High School until 3 wells are abandoned, and they expect the abandonments to be done in August. I didn’t see that in the pdf was it only mentioned in the presentation? Clearly Ruth tunneling was meant to avoid a contracted penalty otherwise they wouldn’t have bothered for 265 feet. With start of tunneling now delayed eight months or more and the rodeo station decking six months ahead of schedule are they going to finish excavating rodeo station before the TBM arrives and save on the planned continuous bore and chop the tunnel out of the station plan? I know the plan is to restore wilshire Blvd, but wow they could save another six months with an additional al six weeks. |
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Post by numble on Jun 6, 2020 7:26:50 GMT -8
They will not tunnel under Beverly Hills High School until 3 wells are abandoned, and they expect the abandonments to be done in August. I didn’t see that in the pdf was it only mentioned in the presentation? Clearly Ruth tunneling was meant to avoid a contracted penalty otherwise they wouldn’t have bothered for 265 feet. With start of tunneling now delayed eight months or more and the rodeo station decking six months ahead of schedule are they going to finish excavating rodeo station before the TBM arrives and save on the planned continuous bore and chop the tunnel out of the station plan? I know the plan is to restore wilshire Blvd, but wow they could save another six months with an additional al six weeks. Yes, the tweet has the audio excerpt. That is what I think may happen. The Rodeo station seems far ahead of the tunneling. |
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Post by numble on Jun 11, 2020 6:54:57 GMT -8
It looks like Metro staff will be asking the Board in August to increase the budget on the Purple Line Extension Section 1 project by $235 million.
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Post by masonite on Jun 11, 2020 7:44:39 GMT -8
It looks like Metro staff will be asking the Board in August to increase the budget on the Purple Line Extension Section 1 project by $235 million. With Crenshaw, the Regional Connector, and now the Purple Line well above their original budgets and sales taxes well below projections with Covid, you gotta wonder what the long term impact is going to be and what projects they are going to have to cut or delay. |
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Post by culvercitylocke on Jun 11, 2020 12:27:01 GMT -8
It looks like Metro staff will be asking the Board in August to increase the budget on the Purple Line Extension Section 1 project by $235 million. With Crenshaw, the Regional Connector, and now the Purple Line well above their original budgets and sales taxes well below projections with Covid, you gotta wonder what the long term impact is going to be and what projects they are going to have to cut or delay. Hopefully it means that the dangerous and unneeded centinela grade separation becomes a “no build” project. |
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Post by numble on Jun 13, 2020 14:48:46 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. According to the Construction Committee report, the BL tunneling was the one that was started, and the oil wells are in the path of the BR tunnel. metro.legistar.com/View.ashx?M=F&ID=8611753&GUID=C7F8F01D-E699-4252-8E99-6F9B43909E9D |
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Post by andert on Jun 15, 2020 11:27:30 GMT -8
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Post by numble on Jun 29, 2020 15:35:25 GMT -8
May 2020 project status reports.
Section 1: 61.8%
Section 2: 31.9%
Section 3: 12%
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Post by numble on Jul 22, 2020 11:43:57 GMT -8
June 2020 project status reports.
Section 1: 62.8% (+1% since end of May, 9.15% ahead of schedule).
Section 2: 33.5% (+1.6% since end of May, 7.4% ahead of schedule. Tunneling seems to be paused due to need to relocate a water line near tunnel shaft and re-abandon oil wells in path of one of the machines).
Section 3: 12.7% (+0.7% since end of May, 1.7% behind schedule).
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Post by numble on Jul 28, 2020 12:06:20 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! They have now confirmed that they will not be building tail tracks for Section 1 of the Purple Line Extension. Perhaps this is the reason why the recent reports have been saying the schedule is in the process of being updated because the current schedule relies on "outdated schedule logic". |
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Post by numble on Aug 5, 2020 13:04:36 GMT -8
Some small updates in this webinar linked below:
- Section 1 TBMs are around Crescent Heights Blvd/McCarthy Vista
- They discovered an anomaly around San Vincente/Wilshire intersection, and will be dealing with that before the TBMs get there
- For the 3 anomalies in Section 2, the one that was in the path of one TBM was determined not to be a well and does not need abandoning (I think it would mean that TBM can keep going), the abandonment of 1 of the oil wells, the 1 closest to the TBM, is expected to be done by end of August (I don't know if they'll wait until both are abandoned before going forward).
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Post by numble on Aug 21, 2020 12:06:02 GMT -8
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Post by numble on Aug 25, 2020 17:49:54 GMT -8
July 2020 project status reports. Section 1 has re-sequenced its schedule so it is now expected to complete in November 2023 instead of January 2024 (it would still be considered a delay, as contract completion is June 2023). Section 2 tunneling still paused for oil well abandonment, and the photo of the oil well abandonment looks like it requires a lot of work. It looks like Section 2 tunneling is estimated to resume on September 29. Section 3 expected to start tunneling on September 15.
Section 1: 63.7%
Section 2: 35%
Section 3: 13.5%
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Post by numble on Aug 25, 2020 22:37:59 GMT -8
Metro staff discussed the anomaly in the Section 1 path and the oil wells in Section 2 path at the August Construction Committee meeting.
They are slowing down the TBMs for Section 1 until they get the anomaly cleared. The oil wells for Section 2 need to be "abandoned" before tunneling can proceed, and they expect one oil well to be "abandoned" by mid-December, while the second oil well will finish being "abandoned" between October and January, depending on if Beverly Hills allows work at night. I wonder if we'll see the Section 3 TBMs finish tunneling before Section 2 finishes.
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Post by bzcat on Aug 26, 2020 9:40:45 GMT -8
Metro staff discussed the anomaly in the Section 1 path and the oil wells in Section 2 path at the August Construction Committee meeting. They are slowing down the TBMs for Section 1 until they get the anomaly cleared. The oil wells for Section 2 need to be "abandoned" before tunneling can proceed, and they expect one oil well to be "abandoned" by mid-December, while the second oil well will finish being "abandoned" between October and January, depending on if Beverly Hills allows work at night. I wonder if we'll see the Section 3 TBMs finish tunneling before Section 2 finishes. If Section 3 starts tunneling in Sept as scheduled then it is a possibility that it will finished tunneling before section 2. But presumably, section 2 will still be ahead due to station construction being further in progress. |
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Post by joquitter on Aug 26, 2020 10:53:57 GMT -8
Metro staff discussed the anomaly in the Section 1 path and the oil wells in Section 2 path at the August Construction Committee meeting. They are slowing down the TBMs for Section 1 until they get the anomaly cleared. The oil wells for Section 2 need to be "abandoned" before tunneling can proceed, and they expect one oil well to be "abandoned" by mid-December, while the second oil well will finish being "abandoned" between October and January, depending on if Beverly Hills allows work at night. I wonder if we'll see the Section 3 TBMs finish tunneling before Section 2 finishes. If Section 3 starts tunneling in Sept as scheduled then it is a possibility that it will finished tunneling before section 2. But presumably, section 2 will still be ahead due to station construction being further in progress. Agreed, IIRC the tunneling will be complete in Section 3 before the stations are actually built, right? |
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Post by numble on Aug 26, 2020 11:08:58 GMT -8
If Section 3 starts tunneling in Sept as scheduled then it is a possibility that it will finished tunneling before section 2. But presumably, section 2 will still be ahead due to station construction being further in progress. Agreed, IIRC the tunneling will be complete in Section 3 before the stations are actually built, right? Yes, the plan for Section 3 was to tunnel in one go and then the stations will be excavated afterwards and break through the already-excavated tunnels. I think that was the plan for Section 2 too, but that probably has changed now as they accelerated the station work by several months (and the tunneling has been delayed by several months). |
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Post by numble on Sept 2, 2020 21:30:00 GMT -8
Update on oil wells under Beverly Hills High School on path of Section 2. The first anomaly will be removed and capped this month (September) and they expect to start working on the next one this month. The TBMs are clearly paused, but the community relations people say they are inching a long.
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Post by numble on Sept 11, 2020 23:13:48 GMT -8
For Purple Line Section 2, it looks like they are going to start up the one TBM that is not in the path of the oil wells this month, and the other TBM will wait for the oil wells to be abandoned.
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Post by numble on Oct 29, 2020 9:02:03 GMT -8
September 2020 status reports for the Purple Line extensions.
Section 1: 65% - I think tunneling is paused while they remove the anomaly in San Vicente.
Section 2: 37.6% - I think tunneling is paused until they abandon the second oil well. Although the report says they wanted to start the machine that was not in the path of the remaining oil well, I think it was reported at the September Construction Committee that they were requested to not tunnel under the school until the second oil well was abandoned.
Section 3: 15.1% - Tunneling was scheduled to start the middle of this month, but there have been no news reports on tunneling starting.
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Post by numble on Dec 10, 2020 12:50:25 GMT -8
Purple Line October 2020 status reports:
Section 1: 65.9% - Tunneling paused until anomaly is mitigated at Wilshire/San Vicente.
Section 2: 38.8% - Oil wells just about mitigated and tunneling set to restart.
Section 3: 16.2% - One TBM has started tunneling.
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Post by numble on Dec 22, 2020 10:52:11 GMT -8
Purple Line November 2020 status reports:
Section 1: 66.2% (+0.3%) - Tunneling paused until anomaly is mitigated at Wilshire/San Vicente, the contractor is estimating they will complete about 6-7 months later (January 2024) than the contract completion date (June 2023).
Section 2: 40.15% (+1.35%) - Oil wells mitigated and tunneling restarted.
Section 3: 16.9% (+0.7%) - One TBM has started tunneling, second TBM expected to start in February.
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Post by Joe Magruder on Dec 24, 2020 16:48:11 GMT -8
Is there any information about the nature of the "anomaly" at Wilshire/San Vicente?
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Post by numble on Dec 24, 2020 23:35:52 GMT -8
Is there any information about the nature of the "anomaly" at Wilshire/San Vicente? It is believed to be a large amount of steel that could have been part of the foundation for an old rail bridge that crossed an old stream at that location.  |
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Post by bdhowaldinnyc on Jan 1, 2021 16:59:04 GMT -8
There definitely appears to be a stream in this 1922 image of the intersection (from Water and Power). Is there any information about the nature of the "anomaly" at Wilshire/San Vicente? It is believed to be a large amount of steel that could have been part of the foundation for an old rail bridge that crossed an old stream at that location. |
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Post by Tomthumb on Jan 14, 2021 13:42:08 GMT -8
Very interesting. LA seems to have forgotten many of its original streams. For example, at 1st and western where a stream is covered over, putrid water has seeped up from the gutters in and around the mini mall ever since it was renovated, assumedly the renovation didn't take it into account. There needs to be a better survey of what remains of them before Crenshaw north's route is finalized.
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Post by jdrcrasher on Jan 15, 2021 20:52:35 GMT -8
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Post by numble on Jan 16, 2021 11:56:36 GMT -8
The underground anomaly at San Vicente / Wilshire has cost $18.4 million so far and delayed tunneling by 6 months.
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