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Here 2 Deliver for You! TT2 Limited New Tyne Crossing THE SECOND TYNE TUNNEL 19 October 2010 Cleveland Institution of Engineers Slide 2 Andrew Coapes TT2 Technical Manager Slide 3 Presentation History and Project Development Contractual Matters The Works, Project Elements Slide 4 Location Plan Slide 5 Study reviewed 4 alignments, St. Lawrence, St Anthonys, Walker & St Bede Cross Tyne Study 2-1992 Slide 6 TRAFFIC THROUGH TUNNEL Slide 7 Examine alternative means of construct at St Bedes, bridges, bored and immersed tube tunnel. Conclusion two lane immersed tube tunnel was best. Suggested that the project was viable for promotion under the PFI Feasibility Study Conclusions Slide 8 Tyne Tunnel Traffic Slide 9 BRIDGE BORED TUNNEL IMMERSED TUNNEL CROSSING OPTIONS Slide 10 BONGA FPSO LEAVING THE TYNE 19.10.03 WHY NOT A BRIDGE? Slide 11 Longer More expensive Variable ground risk BORED TUNNEL Slide 12 EXISTING VEHICULAR TUNNEL: AIR LOCK CONTROL Slide 13 GEOLOGICAL SECTION Slide 14 RIVER ENVIRONMENT RIVER TYNE BEST SALMON RIVER IN ENGLAND AND WALES A DESIGNATED INDEX RIVER Slide 15 IMPACT ON THE COMMUNITIES Slide 16 Contractual Scheme SHAREHOLDERS HBOS 41% HBOS 41% HSBC 41% HSBC 41% TT2 Holdings Co Ltd LENDERS (after syndication) CONTRACTOR BYTP UK GRANTOR TWITA BYTP 18 % HBOS 14%HSBC 10%Natixis 14% BBVA 12%IKB 6% BNG 13% BTMU 12%Co-op 4% Barclays 15% HBOS 14%HSBC 10%Natixis 14% BBVA 12%IKB 6% BNG 13% BTMU 12%Co-op 4% Barclays 15% 100% Project AgreementD&C Agreement Credit Agreement Shareholders Agreement DESIGNERS HPR / PB / FM SUBCONTRACTORS Halcrow Fairhurst Volker Stevin Bachy Jan De Nul Slide 17 THIS AGREEMENT (this "Agreement") is made the 23rd day of November 2007 Project Agreement Slide 18 Project Agreement Objectives (i) building and operating a new tunnel to conform to current safety requirements and refurbishing and operating the existing tunnels to best practice consistent with their construction and listed status; (ii) facilitating the amicable transfer of Transferring Employees to the Concessionaire ; (iii) minimising the actual toll level charged to users including maintaining the current zero VAT rating; (iv) promoting public transport, cycle and pedestrian use of the Existing Tunnels and New Tunnel; (v) procuring the New Tunnel without the need to seek Government PFI Credits or other public sector financial support; (vi) minimising the environmental and social impact of the New Tunnel on local residents and businesses, both during construction and operation; (vii) protecting and promoting the ecology of the Tyne and its tributaries as an important element of the region's environment; (viii) minimising disruption to the operation of the Existing Tunnels during construction; (ix) minimise disruption to the movement of river traffic and the operation of riverside businesses; (x) incentivising the Concessionaire to complete the construction processes as soon as practicable; (xi) allowing flexibility in the Contract Period to facilitate the above objectives; (xii) supporting the Port of Tyne Authority as the road, rail and marine freight hub for the North East region; and (xiii) pro-actively communicating and liaising with all affected authorities, agencies, land owners and communities to foster good relations and understanding of the project and the TWPTA's objective. Slide 19 4 years of construction and 30 years of operation Revenue from Tolls = 1 tunnel` Revenue from tolls = 2 tunnels TT2 operating and maintenance costs Tunnel Construction and refurb Loans from Bank Repayment of Loans + interest Money in Money out How does it work financially? Slide 20 Delivery Challenges Planning conditions River Tyne (Tunnels) Order 2005 Code of Construction Practice Urban environment Traffic using existing tunnel Consultation with Stakeholders Dialogue Strategic partnering forum Approvals and consents workshops Public consultation trust in outcomes Community involvement public art; good neighbour fund Local partnering forums Notification Newsletter Activity diaries Leaflets Website Twitter Email bulletins VMS Media Engagement Drop-in sessions Displays and exhibitions 24 hour helpline TT2 patrol support Councillor briefings Site tours and presentations Slide 21 Overview of Construction Contract Contract Duration, commence early 2008 - complete by 2012 Stage 1: Construction of New Tunnel Stage 2: Refurbishment of Existing Tunnel Estimated number of operatives will peak at 500, over 3,000 in total 400m River 1,500m Tunnel 2,650m Project 80+ Direct Subcontractors 20+ Direct Consultants 6,000 drawings (to date) 910,000 m3 Earth Moving Slide 22 Project Route South JunctionSouth Cut & CoverRiver Section Toll Plaza and North Cut & Cover HowdonJarrow River Tyne Northbound 3.1 km, Southbound 2.6 km M&E Works Slide 23 North Cut & Cover (D-Walls) South Cut & Cover (D-Walls) South Portal (Box Section) Immersed Tunnel Cross Over Existing Tunnel SCL South Portal (Contiguous Piles) Types of Construction South Portal 2 Slide 24 Project Elements Immersed Units Immersed Units Cut & Cover Cut & Cover Cross-over Section Cross-over Section SCL SCL Dredging Dredging Placing and finishing the Units Placing and finishing the Units South Complex Junction Highways North & Toll Booths M & E Services Refurbish Existing Tunnel Slide 25 IMMERSED UNITS Slide 26 May 08 Slide 27 2/9/8 Slide 28 30/9/8 Slide 29 24/10/8 Slide 30 28/11/8 Slide 31 21/01/9 Slide 32 2/3/9 Slide 33 28/5/9 Slide 34 11/6/9 Slide 35 17/9/09 Slide 36 Slide 37 Slide 38 Cut & Cover Slide 39 Cut & Cover Technique Achieved Install diaphragm walls Excavate and install props. Construct floor slab. Construct tunnel internal walls Construct tunnel roof. Backfill over and remove props. Slide 40 Slide 41 Slide 42 Slide 43 Slide 44 Slide 45 Slide 46 Slide 47 Slide 48 Slide 49 Slide 50 Slide 51 Slide 52 Slide 53 Slide 54 Slide 55 Slide 56 Slide 57 Slide 58 Slide 59 Slide 60 Slide 61 Slide 62 Cross-over Section Slide 63 Slide 64 Slide 65 Slide 66 Slide 67 SCL Slide 68 SCL Tunnels Typical Section Slide 69 Slide 70 SCL Slide 71 Slide 72 Slide 73 Slide 74 Slide 75 Slide 76 Slide 77 DREDGING Slide 78 Tunnel Location Caissons Fabrication Dredged Materials 4 Elements 90 meters each Jan till June 2009 370,000 m3 Mobilization Nov 2009 Caissons Fabrication & Dredging Slide 79 Slide 80 Slide 81 DREDGING North transition Barge DN 18 undertaking initial dredge adjacent to transition structures using crane and bucket Material next to wall dredged by barge Cutter suction Dredger Slide 82 WATER QUALITY MONITORS Slide 83 Slide 84 Placing and finishing the Units Slide 85 TRANSITIONS South transition Access door Transition structure complete and access door installed Floor slab behind transition structure complete Rock bund and sheet piled wall in front of transition removed in preparation for dredging Dredging complete Front wall of transition structure and waling beams demolished in preparation for sinking of immersed tunnel units Front wall demolished and shaft flooded Roof slab Transition structure complete Slide 86 Slide 87 Jul 2008 Ballast Tanks Slide 88 Inside Immersed units Slide 89 Float Out Slide 90 Foundations Slide 91 Slide 92 Immersion Slide 93 Slide 94 Sand Bed Slide 95 Omega Gina Seals Slide 96 Slide 97 Slide 98 Slide 99 South Complex Junction Slide 100 2 5 4 3 6 8 1 Realigned A185 Howard Street.1 Howard St/Priory Rd Roundabout.2 N/B Vehicle Inspection Area. 3 Straker St Link Road.4 Loop Road.5 Stricken vehicle area6 A19 southern approach road.7 Straker St Roundabout8 7 Slide 101 Slide 102 Slide 103 Slide 104 Slide 105 Slide 106 Slide 107 Slide 108 Slide 109 HIGHWAYS NORTH AND TOLL BOOTHS Slide 110 Remodelled North Bound Toll Plaza area5 5 New South Bound Toll Plaza area22 Bus Link 3 3 Realignment of the A19 Southbound4 4 Stricken vehicle area 6 6 A187 Link Road 7 7 1 1 Vehicle Inspection & Change Facility Slide 111 Slide 112 Slide 113 Slide 114 Slide 115 M&E Services Slide 116 Tunnel Fixed Fire Suppression System Slide 117 Tunnel Fixed Fire Suppression System Pumps Slide 118 Slide 119 Slide 120 Control Room Slide 121 REFURBISH EXISTING TUNNEL Slide 122 Existing Configuration 2 x 3.65m wide lanes no marginal strips Proposed Configuration 2 x 3.15m wide lanes 0.5 marginal strips 7300 5100 7300 4200 Existing Tunnel Slide 123 REFURBISH OF TUNNEL OFFICES Slide 124 Slide 125 Web sites tt2.co.uk newtynecrossing.info HAVE A PARTY