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East Side Access Outreach April 2007. Contractor Outreach – CQ031 (April 2007) Doing Business with MTACC.

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Presentation on theme: "East Side Access Outreach April 2007. Contractor Outreach – CQ031 (April 2007) Doing Business with MTACC."— Presentation transcript:

1 East Side Access Outreach April 2007

2 Contractor Outreach – CQ031 (April 2007) Doing Business with MTACC

3 Contractor Outreach – CQ031 (April 2007) MTACC is a Cooperative Owner / Project Partner

4 Contractor Outreach – CQ031 (April 2007) MTACC is Committed to: Pro-active Project Management Continual Improvement & Use of Best Practices Sensitivity to Construction Industry Concerns Overcoming Obstacles in a timely manner

5 Contractor Outreach – CQ031 (April 2007) How MTACC Meets the Challenge: Careful analysis of whats going on in the industry Solid, accountable Program Management Reaching out and talking to contractors to address their issues – JUST LIKE TODAY!

6 Contractor Outreach – CQ031 (April 2007) Focus on Project Management Foster timely decision-making at all levels Increase staff training Conduct Constructability Reviews Building-in quality and safety programs Partnering Monitor budget and schedule Deal with utilities early and often

7 Contractor Outreach – CQ031 (April 2007) Making Changes – Procurement Improvements Flexibility in contract strategies and terms Introduce the use of early completion incentives Considering bi-monthly payments on special projects Use of escalation provisions if needed

8 Contractor Outreach – CQ031 (April 2007) Contract Issues Negotiation of ADR Provisions Timely Change Order Process Monitoring to Make Further Improvements –Timely Progress Payment Processing Handling of Geotechnical Information –Use of Geotechnical Interpretive Reports

9 Contractor Outreach – CQ031 (April 2007) Bottom Line We respect our consultants and contractors, and recognize the need to work as partners. Lets continue to dialogue to further improve our business practices to meet all of our needs. We only succeed if we all succeed!

10 Contractor Outreach – CQ031 (April 2007) Procurement Strategy - Negotiated Procurement Hybrid used at MTACC which combines the advantages of a fully designed project with the flexibility of a negotiated procurement RFP issued based on 100% design Negotiations permit owner and proposer to address specific project risks Translates into overall better project definition and cost savings

11 Contractor Outreach – CQ031 (April 2007) MTA Regional Commuter Rail System

12 Contractor Outreach – CQ031 (April 2007) Queens Construction

13 Contractor Outreach – CQ031 (April 2007) CQ031 Overview Scope Summary –Four soft-ground bored tunnels, connecting Plaza Interlocking with the LIRR Mainline and the Mid-Day Storage Yard –Three ventilation shafts –Approach structures and retaining walls Schedule –Contract Advertised 4 th Quarter of 2007 –Construction Starts 1 st Quarter of 2008

14 Contractor Outreach – CQ031 (April 2007) Harold Interlocking and Sunnyside Yard Future LIRR Mid-Day Yard Sunnyside Yard Harold Mainline Tracks Loop Tracks to Storage Yards Existing 63 rd St Tunnel CQ028 Shaft Revenue Tunnels (A. B/C, D) Yard Lead Tunnel

15 Contractor Outreach – CQ031 (April 2007) Elements of CQ031 Track A Track B/C LIRR Lead Track D Honeywell St 39 th St Mid-Day Storage Yard SunnysideYard TBM Launch Wall TBM Cut & Cover (CQ028) Westbound Bypass

16 Contractor Outreach – CQ031 (April 2007) Major Construction Elements – CQ031 (1 of 2) Bored Tunnels (10,500 ft) –19-6 ID, segmental liner –Four Tunnels (A, B/C, D and Yard Lead) –Ground Treatment for TBM launch, mixed face, cross passages –Instrumentation Tunnel Trackwork and Tunnel Bench Ventilation & Emergency Exit Shafts + 2 fan power substations –Three Tunnel Emergency Exit (A, B/C, Yard Lead) & Sewer Relocation –Track D emergency Exit –Yard Lead Emergency Exit Retaining Walls –Westbound Bypass Retaining Wall –Penn Lead Track Retaining Wall & C08 Substation Foundation

17 Contractor Outreach – CQ031 (April 2007) Major Construction Elements – CQ031 (2 of 2) Cut and Cover Approach Structures –Yard Lead Approach Structure, S&I Access Road Relocation –Closure of TBM reception pits A and D Demolition –43 rd Street Private Properties –Remaining elements of Amtrak Substation 1A –Sunnyside Connector Track and Transformers at Honeywell St. Bridge Underpinning –Honeywell Street Bridge Piers 4, 5 and 6 –39 th Street Bridge Pier 1S –General Motors Access Bridge South Pier –Existing 43 rd Street Bridge Piers 1 through 4 and Sewer Relocation –Harold Signal Tower

18 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

19 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

20 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

21 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

22 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

23 Contractor Outreach – CQ031 (April 2007) Bored Tunnels

24 Contractor Outreach – CQ031 (April 2007) Bored Tunnels Two EPB or Slurry TBMs

25 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Pre-Cast Segmental Liners

26 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Section Through Launch Shaft: Rock/Soil Interface A B/C D Yard Lead

27 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Ground Treatment B/C Yard Lead Launch Shaft

28 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Length of Tunneling Section Length Tunnel Length Track AGlacial Till 2,180 ft Track B/CGlacial Till 1,739 ft Track D Rock and Mixed Face 60 ft Glacial Till 2,158 ft 2,218 ft Yard Lead Rock and Mixed Face 515 ft 4,384 ft Glacial Till 3,869 ft 10,523 ft

29 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Instrumentation & Predicted Settlement Contours

30 Contractor Outreach – CQ031 (April 2007) Bored Tunnels - Settlement Monitoring and Limits

31 Contractor Outreach – CQ031 (April 2007) Manual and Automated Total Station Rail Monitoring Reflector

32 Contractor Outreach – CQ031 (April 2007) Tunnel Trackwork and Tunnel Bench - Trackwork Installation

33 Contractor Outreach – CQ031 (April 2007) Tunnel Trackwork – Booted Block System

34 Contractor Outreach – CQ031 (April 2007) Ventilation and Emergency Exit Shafts - Three Tunnels

35 Contractor Outreach – CQ031 (April 2007) Ventilation and Emergency Exit Shafts - Track D

36 Contractor Outreach – CQ031 (April 2007) Ventilation and Emergency Exit Shafts CL Lp1B CL Lp1A Modular Retaining Wall CL Tr D Air Plenum Upper SA Room Fan Room Lower SA Room Steel Frame RC Wall Jet Grout Invert Plug Track D Emergency Exit at Honeywell St. (Similar to Yard Lead Emergency Exit at 39th St.)

37 Contractor Outreach – CQ031 (April 2007) Ventilation and Emergency Exit Shafts Yard Lead Emergency Exit & Substation at 39th Street

38 Contractor Outreach – CQ031 (April 2007) Ventilation and Emergency Exit Shafts 39 th Street Bridge Harold Access Bridge Skillman Avenue Substation Emergency Exit Yard Lead Emergency Exit and Substation at 39th Street

39 Contractor Outreach – CQ031 (April 2007) Retaining Walls - Westbound Bypass and PL Track Westbound Bypass Approach Structure (Rendering) Modular Retaining Wall Section for PL Track

40 Contractor Outreach – CQ031 (April 2007) Cut and Cover Approach - TBM Reception Pits - By Others Track A TBM Reception Pit (CH053) Track A Approach Structure (CH053) Track B/C TBM Eastern Limit Track B/C Approach Structure (CH059) Track D TBM Reception Pit (CH054) Track D Approach Structure (CH054) Harold Access Bridge (CH053)

41 Contractor Outreach – CQ031 (April 2007) Cut and Cover Approach CH054 – 48th St Main Line Bridge (Reloc. ML4 and Temp. ML2) Retaining Wall Yard Lead Approach Structure GM Access Bridge Retaining Wall Mainline Bridges at 43 rd Street (CH053)

42 Contractor Outreach – CQ031 (April 2007) Cut and Cover Approach - Typical Approach Structure

43 Contractor Outreach – CQ031 (April 2007) Demolition - Private Properties on 43 rd Street

44 Contractor Outreach – CQ031 (April 2007) Traction Power Substation C08 at 43 rd Street Yard Lead Tunnel Approach Structure Traction Power Substation C08 – Foundations Only

45 Contractor Outreach – CQ031 (April 2007) Underpinning - Protection of Honeywell St. Bridge

46 Contractor Outreach – CQ031 (April 2007) Underpinning - Protection of GM Access Bridge (jet grout columns)

47 Contractor Outreach – CQ031 (April 2007) Underpinning - Yard Lead Tunnel - 43 rd St Bridge Pier Modification Temp. Steel Road Plate Mini Piles Yard Lead Relocated DEP Sewer Mini Piles

48 Contractor Outreach – CQ031 (April 2007) Railroad Interfaces Working Arrangements with Railroads Flagging Support and Force Account Support Working within Harold Interlocking and Sunnyside Yard TBM Removal next to Harold Mainline and Catenary

49 Contractor Outreach – CQ031 (April 2007) Main Staging Area 500 ft

50 Contractor Outreach – CQ031 (April 2007) Key Elements (1 of 2) Contract Construction Interfaces –Predecessor Contracts: CQ028, CH053 –Interfaces in Harold Interlocking and Yard A with Concurrent Contracts: CH054, CM009, CM012, CM019, Force Account. –Successor Contracts: CQ032, CH057, CS079 –Additional Design Interfaces with: CH059, CS081 New Technology –Pressurized Face TBMs –Precast Booted -Block Trackwork System.

51 Contractor Outreach – CQ031 (April 2007) Key Elements (2 of 2) Means and Methods Generally shown as Suggested Method with permissible alternatives detailed in the specifications: –TBM: Pressurized Face (Slurry or EPB) –Liner: Reinforcement designed by GEC consultant. Contractor can propose modifications to details such as left/right rings, taper, segment shape and dowels –Ground Treatment: Jet grout or ground freezing feasible –Ground Support for Vent Shafts: slurry walls or secant piles feasible –Temporary Support for Yard Lead Approach Structure: Jet grout plus soldier pile and lagging suggested, slurry walls and tremie plug acceptable –Temporary Support for Westbound Bypass. Suggested as Soldier Pile and lagging with rakers or tie-backs –Underpinning: Various methods suggested (one per pier location) Instrumentation and Monitoring Mixed Face, Boulders and Shallow Tunneling

52 Contractor Outreach – CQ031 (April 2007) ESA Project – General Description

53 Contractor Outreach – CQ031 (April 2007) Queens Packaging Plan Harold Stage 1 Harold Stage 2 Harold Stage 3 Harold Stage 4 28 Months 20 Months 18 Months 16 Months

54 Contractor Outreach – CQ031 (April 2007) Amtrak Building 3 Amtrak Building 4 Amtrak Buildings To Be Demolished

55 Contractor Outreach – CQ031 (April 2007) Ventilation Shafts and Emergency exits

56 Contractor Outreach – CQ031 (April 2007) Slurry Wall Rig Emergency Exit Shaft Construction

57 Contract CQ031 Key Contractor Issues

58 Contractor Outreach – CQ031 (April 2007) Tunneling Issues –Differing Site Conditions (mixed face, boulders, contaminated ground, buried obstructions), Geotechnical Interpretive Report –Settlement and Sinkholes (Sunnyside Yard, Harold Mainline, Harold Signal Tower, Bridge Piers, 43 rd Street, Loop Track Retaining Wall) –Instrumentation Monitoring by MTA –Responsibility for Direct and Indirect Damages –Mixed Face, Boulders and Shallow Tunneling

59 Contractor Outreach – CQ031 (April 2007) Draft Schedule Summary Sept 2007 to Feb 2011 (41 months, approx.) JFMAMJJASONDJFMAMJJASONDJFMAMJJASONDJFMAMJJASOND

60 Contractor Outreach – CQ031 (April 2007) Rising Construction Costs – So well look at the need for material escalation provisions Increasing volume of work in both the private and public sectors – So we look at phasing our jobs Stress on labor resources - We monitor availability of labor and package jobs to maximize use of resources Were sensitive to your problems:


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