1 / 3

Second Avenue Subway TBM Drive #1 Issue: Complete TBM run by March 7

Key Issues. CPOC Update. February 2011. Second Avenue Subway TBM Drive #1 Issue: Complete TBM run by March 7 TBM Drive #1 completed February 4, ahead of the required date. Key Issues. CPOC Update. February 2011. East Side Access Systems Contracts Issue: Reduce risks of delay

webb
Download Presentation

Second Avenue Subway TBM Drive #1 Issue: Complete TBM run by March 7

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Key Issues CPOC Update February 2011 Second Avenue Subway TBM Drive #1 Issue: Complete TBM run by March 7 • TBM Drive #1 completed February 4, ahead of the required date

  2. Key Issues CPOC Update February 2011 East Side Access Systems Contracts Issue: Reduce risks of delay • Draft Risk Assessment identified a number of risks that, if not mitigated, could lead to project delays • Actions already taken: • Redesigned bench wall to increase production of cable installation • Advanced bench wall, walkway, and other scope for earlier completions and reduced volume of concurrent work • Advanced two substations to reduce testing and commissioning delay risks • Conducting peer review of critical track installation site access plan • Building 4-D model to confirm work plan and resolve conflicts • Analyzing feasibility of additional work shifts; if feasible, could greatly reduce delay risks • Other risk mitigation strategies that result from the Follow-up Risk Assessment will be included in contract specs. The procurement of first Systems contract is planned to start in April with award in March-2012. • RFP procurement process allows team to evaluate and negotiate contract schedule and other terms

  3. Key Issues CPOC Update February 2011 East Side Access Manhattan Caverns Issue: Hold to recovery plan and restore schedule contingency • Actions taken to increase production: • Contractor now working 24 hours a day, six days per week, every week (seventh day being evaluated) • Changed running tunnel waterproofing design to simplify concrete production. This approach has been discussed with LIRR. • Setting up additional material delivery access points in Manhattan (Wellway 3) • Progress since last report: • Started concrete operations in W/B Cavern this month as planned • Currently forecast start of concrete operations in E/B Cavern in April, but pushing for March start to meet plan

More Related