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United States, Los Angeles - us/29

NEIS Sewer

    In design, new interceptor system approximately 16 km-long with i.d. 1.9 m to 2.5 m to replace a portion of existing 70 year-old north outfall sewer. Soft, mixed ground conditions with boulders and featuring high water table. Alignment passes through some contaminated areas and seismically-active faults, so watertight construction techniques mandatory. Jacobs Associates leading team of 16 subconsultants. Visit www.jacobssf.com for progress updates. October 1999.   Capital improvement programme includes construction of a new deep-level 35 km interceptor sewer with internal diameter ranging from 2 m to 4 m. Project to provide additional conveyance capacity for an existing deteriorating sewer that is scheduled for rehabilitation will be constructed concurrently in two phases: 18 km east-west and 17 km north-south. October 1999.   URS Greiner Woodward Clyde is a key member of the Jacobs design team for the NEIS project. Also, through associated firm, Dames & Moore, URS Greiner Woodward Clyde is also providing geotechnical engineering support to the City for the NEIS and ECIS (East Central Interceptor Sewer) projects. Visit www.urscorp.com December 1999.   Frontier-Kemper will undertake 4.2 km drive starting February, 2000 using refurbished CTS TBM (ex Portland, OR) downsized to 6 m diameter. Long Airdox 24 inch conveyor belt pack will be installed in starter tunnel presently under drill/blast development following extensive excavation to establish portal.   Prequalification for 18.4 km-long, 3.35 m-finished diameter North Outfall Sewer – East Central Interceptor Sewer (NOS-ECIS) underway to be notified no later than 17th February, 2000. Contract will be advertised 1st March, 2000 for bids within two months and award 1st July, 2000. Project will be let in one lot and includes 8 shafts, 23 maintenance holes with 8 junction structures, a 90 m-long siphon, 250 m of microtunnelling, and conduits for fibre optics. Multiple new EPB or slurry TBMs required for predominantly soft ground and sandy soils in the Lakewood Formation and hard clay and soft rock in the San Pedro Formation. Isolated occurrence of nested boulders noted. All work above groundwater table. Three faults at Newport, Inglewood and Baldwin Hills. Project contact Baron Miya, e-mail bmiya@eng.ci.la.ca.us January 2000.East Central Interceptor Sewer tenders low bid: Kenny-Kiewit jv $235 million; Shea/Traylor/Frontier Kemper jv $261 million. For contact visit www.kiewit.com and www.frontier-kemper.com July 2000. Rebid award of NORS II project, 18.5 km-long, 4.77 m-diameter interceptor to Kenny/Shea/Traylor and Frontier Kemper Constructors jv at $239 million following withdrawal of Kenny/Kiewit jv. Visit www.frontier-kemper.com December 2000.Lovat will supply four 4.7 m-diameter TBMs to the jv of Kenny, J.F. Shea, Traylor Bros, and Frontier-Kemper for the 18.5 km-long NOS-ECIS project. The machines can operate in EPB, open, or closed modes to bore through the expected soft ground and boulders, with seismically active faults. First delivery is scheduled for October, 2001, and will be the 200th TBM manufactured by Lovat. Visit www.lovat.com 09/01.



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United States, Hawaii - us/28

Kailua Trunk Sewer

  3.8 km of 1.27 m-internal diameter Hobas pipe under installation using two Soltau 1.38 m-diameter machines with 600 t jacking frames. Contracting jv of Delta Construction of Hawaii and Kinsel Industries of Houston. Further 2.5 km of smaller diameter connectors to complete. More information from paulsoltau@aol.com . October 1999.



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United States, Puerto Rico - us/27

San Juan Metro

  1.5 km underground rapid transit system with two stations in weathered alluvium below water table. Jacobs Associates handling tunnel design as part of design and build jv of Kiewit-Kenny-Zachry with CMA Architects and Engineers and local designers. Rio Piedras station under construction using concrete-filled stacked drifts and extensive compensation grouting. Lovat EPB and segmental concrete lining for twin 430 m tunnels to University and sprayed concrete lining elsewhere. Nov 1998.   Four NATM tunnels for Carolina and Bayamon lines completed and twin EPB tunnel completed and lined. South cut and cover section fully excavated and concrete walling underway. Remaining stacked drifts for Rio Piedras station under excavation and concreting. E-mail contact mguzman@kkz-cma.com Sept 1999.   URS Greiner Woodward Clyde is project geotechnical and instrumentation engineer for design and construction phases of the Rio Piedras project, as part of the KKZ JV. More from www.urscorp.com December 1999.  Preliminary design of Phase 2 underway. $600 million, 1.7 km design/build extension involves 1.255 km of twin tunnels, crossover and stations at Minillas and San Mateo at 10-15 m depth in soft, sandy clay and clayey sand. Visit www.jenny-engineering.com 35/01.



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United States, Michigan - us/26

Detroit River Outfall

  Project getting underway by Traylor Bros/Jay Dee comprises 1.95 km drive in dolomitic limestone by 7.5 m-diameter TBM. Will be segmentally lined at 6.7 m internal diameter. Access shaft 92 m-deep with 9.5 m internal diameter, 800 mm-thick concrete lining cast in place. Two 2.54 m-diameter blind drilled access shafts to 84 m depth and six 3.2 m-diameter diffuser shafts drilled to 70 m depth in river bed. Sept 1999.  Wirth reports its PBA 928 blind shaft borer with reverse circulation working with Traylor Bros/Jay Dee/Millgard jv has completed the two land shafts and is now engaged on drilling the six shafts in the Detroit river which will provide riser pipes for the outfall tunnel. A 22 year-old Robbins open gripper TBM is under conversion by CTS, Kent, WA to a shielded 7 m-diameter machine with segment erector for the 1.9 km-long drive in soft limestone. Visit www.americancommercial.com and www.wirth-drilling.com June 2000.



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United States, Arizona - us/25

Phoenix Water Transmission

  Prequalification underway for construction of 1.93 km-long, 2.23 – 3.5 m finished diameter South Mountain Water Transmission Tunnel. Inner lining will comprise 1.27 m-diameter pipe backgrouted into place. Contact City of Phoenix. March 2000.  Prequalification packages are being accepted by the City of Phoenix, Arizona for the construction of the 1.93 km-long South Mountain water transmission tunnel at 2.23 m to 3.5 m finished diameter with a 1.27 m-diameter pipe grouted in place. Bids due this Spring. February 2000.



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United States, Indiana - us/24

Evansville Sewer

2.6 km drive by Jay Dee Contractors in sands, silts and clays along Weinbach Avenue by 3.5 m diameter Lovat EPB. 3.2 m to 6.4 m cover. Project includes 15 manhole shafts. No dewatering allowed over most of drive because of proximity of business and residential property. TBM under launch. Sept 1999.   Lovat has completed over 1 km, lately in difficult ground conditions caused by fractured utilities above the alignment. The machine was delayed while a relief shaft was sunk and well points installed. Currently achieving 13 m/shift erecting ribs and lagging at 1 m intervals and drilling a 30 m-long drainhole at every set. November 1999.  Contract value reported as $11.2 million with design and construction management supplied by Clark Dietz with Haley & Aldrich. Tunnel lined with ribs and lagging prior to installation of 2.4 m RCP and grouting of the annulus. Drive holed into reception shaft on 22.02.2000 having averaged 25 m/10h day and pipe installation now complete. Project final completion due late-September. Visit www.lovat.com June 2000.Affholder has received a $6.95 million contract from the Indiana Department of Transportation to build a new sewer tunnel in Evansville. The 1,465 m-long, 2.44 m-wide tunnel will run 12 m below Highway 66. It will take two 15-worker crews about seven months to bore the tunnel. The project is scheduled to be completed in July 2004. Visit www.insituform.com/corporate/corp_affholder.html 48/03.



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United States, California - us/23

Inland Feeder

    Major scheme to provide 650 million gal/day of water for Southern California. 29 km of 12 ft finished diameter tunnels under construction by Shank/Balfour Beatty in three lots: Arrowhead West (6.2 km), Arrowhead East (9.6 km), and Riverside Badlands (13.2 km). Arrowhead East has advanced 2.55 km using contractors own 5.6 m-diameter TBM and similar machines under erection at Arrowhead West and Riverside Badlands. Extensive grouting programme undertaken to reduce water inflow. Project completion scheduled for December, 2003. Sept 1999.   These tunnels cross both the San Andreas and San Manuel faults. Pre-excavation grouting using microcements was being carried out ahead of the TBMs, and backfill grouting around the carrier pipe in the completed tunnels was planned. However, despite the injection of 1,250 t of cut-off grout, which reduced the water inflow from 1,400 gal/min to 275 gal/min, Arrowhead East tunnel has been closed down after completing 2.5 km of drive. Arrowhead West is also closed for similar reasons, and the Metropolitan Water District of Southern California has replaced the management and is considering options for realignment of both tunnels or their abandonment and replacement by pipeline. Riverside Badlands tunnel is unaffected, but it is reported that the Parsons Brinckerhoff construction management team has been replaced by a team from Hatch Mott McDonald. January 2000.   Shank/Balfour Beatty reports good progress on Riverside Badlands tunnel, the only one of their original three contracts that is still in place, Arrowhead East and West having been terminated due to unforeseen groundwater conditions. An average of 52 m/day is being achieved and the 12.8 km-long x 4.8 m-diameter tunnel is nearly half-complete. Bechtel and Jacobs Associates are redesigning the Arrowhead tunnels for re-bid later this year. Visit www.jacobssf.com and www.balfourbeatty.com June 2000.   MWD prequalifying bidders on the Arrowhead East and West projects in San Bernardino. This project was halted by water intrusion in excess of specs with contractor Shank Balfour Beatty J/V paid for work performed and anticipated profit. Visit www.jacobssf.com December 2000.  The Metropolitan Water District of Southern California has awarded to J.F. Shea Construction a $242.2 million contract to drill two tunnels, stretching a total of 12.5 km, under the San Bernardino National Forest. The Arrowhead west tunnel is 5.8 km, the Arrowhead east tunnel is 6.6 km. Finished diameter of 3.6 m. Geology consisting of gneissic metamorphic rock, quartz monzonite, quartz dioride and several faults and fissures. Two TBMs will be required, the maker has yet to be chosen by the contractor. Bolted and gasketed segmental lining, reinforced concrete cylinder pipe. Portal preparatory work will probably begin as early as 100 days. Tunnelling to begin in about a year and will be completed by the second quarter of 2007. Engineering companies involved are San Francisco-based Jacobs and Associates as designer, and Hatch Mott McDonald as construction managers. Financing with pay-as-you-go capital funds and bonds. Visit www.mwdH2O.com and www.jfshea.com 16/02.Breakthrough took place end of July 2001 on the 12.9 km tunnel beneath the Badlands mountain range in Riverside and San Bernardino counties. 16/02.



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United States, Arizona - us/22

Mineral Creek Water Diversion

  4.2 km x 5.7 m-diameter hardrock TBM drive by Frontier-Kemper Constructors for Asarco to replace existing 25-year old drill/blast, circular concrete lined, horseshoe-shaped drive at its Ray Complex southeast of Phoenix. Will be lined at 5 m-diameter. Alignment is on 255 m radius curve at 1.4 % downgrade and rock cover varies from 43 m to 342 m. Sept 1999.



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United States, New York - us/21

Hudson River Railway

  $8 million study concerning 8 km rail tunnel from Secaucus NJ on the west bank, under the Hudson River to Penn and Grand Central stations in Manhattan to complement East Side Access project for Long Island Railroad. Final plan to be selected by 2001. June 1999.   $2 billion funding approved by the Senate for proposed fourth rail line under the Hudson River as part of a $7 billion rail programme for Amtrak to upgrade high-speed rail corridors throughout the US. Three proposed options. Option G takes the new tunnel to New York's Penn station, and Grand Central for a cost of $4-$5 billion. Option P ends at Penn station and would cost $3 billion. Option S would take the tunnel to Penn station, and then to the Sunnyside rail yard in Queens for $4-$5 billion. Neither option P or S gets to the East side so that option G is considered the most attractive. 47/01.   The New Jersey Transit approved to undertake a $4.9 million environmental impact study for two one-way tunnels under the Hudson river. The new tunnel would link the Northeast Corridor line with Pennsylvania station in Manhattan, placing the parallel tunnels somewhere in the northern Hoboken-southern Weehawken area on the Hudson's west bank and midtown Manhattan to the east. The project is being undertaken in conjunction with the Port Authority of New York and New Jersey and the Metropolitan Transportation Authority (MTA) which operates New York City's commuter trains and stations. The new tunnel would cost $5 billion.Visit www.njtransit.com and www.accesstotheregionscore.com 42/02.  The New Jersey Transit board awarded a $4.9 million contract to Parsons Brinckerhoff and Systra Consulting to begin environmental impact studies of a proposed new rail tunnel between New Jersey and Manhattan. The two firms plan to finish the study by 2005. The next step would be to secure $16 million in federal funding for engineering studies. The plan for the tunnel includes two one-way tubes under the Hudson River between the Hoboken-Weehawken border and the Chelsea section of Manhattan. The entire tunnel project is estimated to cost up to $5 billion, most of which would come from federal sources. The tunnel would likely take more than 10 years to complete. Visit www.njtransit.com, www.pbworld.com and www.systraconsulting.com 27/03.Congress will grant $5 million in federal funds to begin the studies for developing a new rail tunnel between New York and New Jersey. The funds will be included in the 2004 transportation appropriations bill. The project could cost as much as $5 billion. The $5 million initial appropriation will be used to produce a draft environmental impact statement, one of the first steps necessary to prepare for construction. New Jersey Transit and the Port Authority of New York and New Jersey will coordinate the study. The new twin one-way tunnel would be designed to effectively double the number of commuter trains operating between midtown Manhattan and New Jersey. Visit www.njtransit.com 38/03.New Jersey Transit has solicited Expressions of Interest from design firms to provide professional engineering services for the preliminary engineering of the Trans-Hudson Express tunnel (THE tunnel). The Draft Environmental Impact Statement was issued to interested parties in January. The following three bidders have been shortlisted to receive the Request for Proposal for the THE tunnel: a JV of Atkins and Washington Group International, Hatch Mott MacDonald and a JV of Parsons Brinckerhoff, STV and DMJM Harris.New Jersey Transit hopes to have preliminary engineering completed during 2007, with the aim of having the link ready for revenue service in 2015. The winning bidder may also be invited to undertake overall design, project integration of all facets of the project, and/or one or more segments of final design, as well as construction assistance.The THE tunnel project will span New York and New Jersey and consists mainly of two single-track tunnels under the Palisades in New Jersey and the Hudson River connecting to a new eight-platform underground station under 34th Street and 7th Avenue as well as the existing Penn Station in New York City. Read E-News Weekly 35/2005, 51/2003 & 46/2002. Visit www.njtransit.com and www.accesstotheregionscore.com 14/06.The Trans-Hudson Express (THE) tunnel will start on the west side of Tonnelle Avenue in North Bergen Township and continue under the Palisades and Hudson River to the new station under 34th Street between 6th and 8th Avenues in Manhattan. Each of the two tunnels will be approximately 6,100 m long. A connection from the new tunnels to the existing Pennsylvania Station is also included in the project. The external diameter is preliminarily anticipated to be 8.39 m. The interior diameter is preliminarily anticipated to be 7.47 m.The tunnels will be constructed through differing soil conditions. The sections under the Palisades and Manhattan will be bored through rock and the section under the Hudson River will be bored with a shielded machine through the anticipated softer ground conditions. Final cavern shaping will be done by drilling and blasting after rock boring is completed.Preliminary design of the project is anticipated to begin this summer and lining procedures, mucking procedures and construction methods will be advanced during this phase.The earliest construction bid advertisements are anticipated in mid to late 2008. Construction will begin following the bid and award period. Click us/21. Visit www.njtransit.com 15/06.A team of Parsons Brinckerhoff, CH2M Hill and ILF will design the proposed new rail line under the Hudson River. The new tunnel project is a needed improvement to the area's transportation system and will be linked to the railway system in New Jersey and to the subway system in Manhattan via a new station under 34th Street. Read E-News Weekly 33/2006. Visit www.pbworld.com, www.ch2m.com and www.ilf.com 48/06.NJ Transit's board on 13th December, 2006 approved hiring the CM Consortium of Newark for USD5 million as construction managers for the project to build a second Hudson River rail tunnel. The consortium is a joint venture of Tishman Construction, Parsons and Arup. The consortium will provide design oversight, make independent cost estimates, develop a master project schedule, and create a quality control plan. The consortium will oversee three engineering firms, named THE Partnership, who have already been awarded contracts in August to create preliminary designs for the proposed Hudson River commuter train tunnel and new Moynihan station. The project includes a new tunnel under the Palisades in New Jersey and the Hudson River to midtown Manhattan and an expanded rail station connected to the existing New York Penn station. Concept plans call for construction of two side-by-side, single-track tunnels of 6.6 km in length. NJ Transit hopes that construction on the projects could begin in 2009 and be completed by 2016. Visit www.tishmanconstruction.com, www.parsons.com and www.arup.com 03/07.THE Partnership, a joint venture that includes Parsons Brinckerhoff, STV Group and DMJM Harris and names itself as the Trans-Hudson Express (THE) Partnership, began preliminary design in August 2006 and will finish the work in about 13 months from now. Their contract is worth USD82.5 million. The THE tunnel is the centre piece of the USD6 billion Access to the Region's Core (ARC) project. Then, ARC will move into final design, the last pre-construction phase, assuming financing is in place to pay for the project. Click us/21. Visit www.pbworld.com, www.stvinc.com and www.dmjmharris.com 03/07.



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New Jersey (NJ) Transit has awarded the first and the second of three tunnelling contracts for the planned $8.7bn Mass Transit Tunnel, a project to double the capacity of NJ-New York commuter rail. Visit www.njtransit.com. The third Hudson River Tunnels tender is in process. Click here for more. On 08.01.2010 the USD271.7million contract for a total of 3,169.92 m of twin-bore tunnel through the Palisades between Tonnelle Avenue Underpass in North Bergen and Hoboken was awarded to PTP Constructors of Secaucus, a joint venture of JF Shea Construction and Skanska USA Civil Northeast. Work is expected to begin in the next few months and finish within three years. For more click here. Visit www.jfshea.com and www.skanska.com. On 10.12.2009 the USD583 million contract for 5,029.2 m of Manhattan tunnels, to be built with two TBMs through hard rock between a shaft at Twelfth Avenue in New Jersey and 28th Street in Manhattan, was awarded to a jv of Barnard of New Jersey and Judlau Contracting Inc. of College Point, N.Y. Construction will begin in 2010 and is expected to continue until late-2013. Click here for more. Visit www.barnard-inc.com and www.judlau.com. 03/10.



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The Gateway Development Commission (GDC) identified a shortlist of qualified teams who will receive an invitation to submit, deadline 30/06/2023, a proposal in response to a Request for Proposals (RFP) to serve as a Delivery Partner in connection with the Hudson Tunnel Project (HTP). The Delivery Partner will provide key areas of support to help deliver the HTP. 

Shortlisted teams include:  

  • Joint Venture of Bechtel-HNTB;  
  • Hudson Delivery Partnership (Atkins North America, Inc., Arup US Inc., The McKissack Group, Inc.);  
  • MPA Delivery Partners (Parsons Transportation Group of New York, Inc., Arcadis of New York, Inc., Mace North America Limited). 

The shortlisted teams are among those that submitted a Statement of Qualification (SOQ) earlier this month in response to a Request for Qualifications (RFQ) issued by GDC through the National Railroad Passenger Corporation (Amtrak).  


Visit https://www.gatewayprogram.org/  and https://procurement.amtrak.com . Ref.n. X048-23093. 21/23.


 




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Request for Qualifications, deadline 12/07/2023, for ground improvement in the Hudson River to strengthen soils of the riverbed to facilitate future Hudson River Tunnel design and construction requirements to be performed by others. An Expression of Interest should be emailed to procurement@gatewayprogram.org. Visit https://www.gatewayprogram.org/wp-content/uploads/2023/05/GDC_2023.05.31_HRGS_RFQ_Final.pdf and https://www.gatewayprogram.org/wp-content/uploads/2023/06/Addendum-002.pdf. Ref.n. GDC23-003. 26/23. 



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Request for Qualifications, deadline 13/09/2023, for the excavation by 2 hard rock TBMs of the Palisades twin-tube tunnel (1,55 km/5,100 feet length and 63.5 m diameter) from the tunnel portal at Tonnelle Avenue construction site eastward into the Hoboken Shaft. The tunnel will be equipped with 6 cross passages built by drill & blast techniques.  An Expression of Interest should be emailed to procurement@gatewayprogram.org. Visit https://www.gatewayprogram.org/wp-content/uploads/2023/05/GDC_2023.05.31_Palisades_RFQ_Final.pdf.  Ref.n. GDC23-004. 26/23. 



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Gateway Development Commission (GDC) shortlisted  the following five qualified teams for construction and other related work for the twin-tube Palisades tunnel, a key element of the Gateway Program:

  • FKC-Tutor Perini-Hyundai Joint Venture (Frontier-Kemper Constructors Inc, Tutor Perini Corporation and Hyundai America Inc.);
  • Gateway Tunnel Contractors (Halmar International LLC and FCC Construction Inc.);
  • Shea-Kiewit Tunnel Constructors (J.F. Shea Construction Inc. and Kiewit Infrastructure Co.);
  • Schiavone OHLA Ghella Joint Venture (Schiavone Construction Co. LLC, OHLA USA Inc. and Ghella USA Corp.)
  • Walsh / Skanska / Traylor Joint Venture (Walsh Construction Company II LLC, Skanska USA Civil Northeast Inc and Traylor Bros. Inc.).

Visit https://www.gatewayprogram.org/wp-content/uploads/2023/10/20231024_Palisades_Notice-of-Shortlist.pdf .  Ref.n. GDC23-004. 43/23.



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Gateway Development Commission (GDC) shortlisted  the following five qualified teams for construction and other related work for the twin-tube Palisades tunnel, a key element of the Gateway Program:

  • FKC-Tutor Perini-Hyundai Joint Venture (Frontier-Kemper Constructors Inc, Tutor Perini Corporation and Hyundai America Inc.);
  • Gateway Tunnel Contractors (Halmar International LLC and FCC Construction Inc.);
  • Shea-Kiewit Tunnel Constructors (J.F. Shea Construction Inc. and Kiewit Infrastructure Co.);
  • Schiavone OHLA Ghella Joint Venture (Schiavone Construction Co. LLC, OHLA USA Inc. and Ghella USA Corp.)
  • Walsh / Skanska / Traylor Joint Venture (Walsh Construction Company II LLC, Skanska USA Civil Northeast Inc and Traylor Bros. Inc.).

Visit https://www.gatewayprogram.org/wp-content/uploads/2023/10/20231024_Palisades_Notice-of-Shortlist.pdf .  Ref.n. GDC23-004. 43/23.



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Gateway Development Commission (GDC) shortlisted  the following three qualified teams for final design, construction and other related work for the Manhattan tunnel, which is a key element of the Gateway Program:

  • FKC-Tutor Perini-Hyundai Joint Venture (Frontier-Kemper Constructors Inc, Tutor Perini Corporation and Hyundai America Inc.);
  • Gateway Tunnel Partners (Halmar International LLC and FCC Construction Inc.);
  • Skanska / Traylor/ Walsh  Joint Venture (Skanska USA Civil Northeast Inc, Traylor Bros. Inc. and Walsh Construction Company II LLC).

Visit https://www.gatewayprogram.org/wp-content/uploads/2024/01/2024.01.18_Manhattan_Notice-of-Shortlist_Final.pdf and . Ref.n. GDC23-005. 06/24. 



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The Gateway Development Commission’s (GDC) Board of Commissioners awarded the EUR261.70 million (USD284 million) contract for Hudson River Ground Stabilization (HRGS)  to Weeks Marine Inc from Cranford (New Jersey, USA). The HRGS project marks the first heavy construction contract by GDC on the Hudson Tunnel Project (HTP): it’s an important component of the new tunnel project. A mix of soil, concrete, and water will be injected to stabilize the riverbed in 365.76 m (1,200 feet) of the shallow area on the Manhattan side of the Hudson River. This work will ensure the TBM can excavate the new tunnel while protecting the riverbed from disruption. Visit https://www.gatewayprogram.org/. Ref.n. GDC23-003. 09/24.



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United States, Utah - us/20

Spanish Fork Water Conveyance

Two 2.9 m-diameter rock drives totalling 4,267 m with an intermediate siphon pipeline in opencut and a downstream 3,230 m opencut 2.44 m-diameter pipeline to connect with existing Syar tunnel. Under design by URS Greiner Woodward Clyde for Central Utah Water Conservancy District, UT for bid late-1999. April 1999.   Accepted design/build alternative to previously reported Spanish Fork tunnels comprises a 6.7 km-long aqueduct awarded at value $53 million to Obayashi/Clyde jv who are planning to use a refurbished 3.8 m-diameter Herrenknecht TBM starting mid-September, 2000. Primary support will be rockbolts and steel arches followed by cast-in-place 3 m i.d. concrete final lining. Designers are Jacobs Associates with Camp Dresser McKee and Golder Associates. This is the final extension of the system from Strawberry Reservoir which includes the 10-year old Syar tunnel, a long-time resident in the tunnelbuilder Hall of Fame (click on Recordbreakers, above). Visit www.jacobssf.com and www.herrenknecht.com June 2000.  Refurbished Herrenknecht 3.9 m hardrock TBM with 78 m-long trailing backup underway at Provo, UT on 7.3 km drive for Obayashi/Clyde with Jacobs Associates on design/construct project. TBM excavation scheduled for completion August, 2001 on 24 h/day, 6 day/week. Package includes two 220 m-deep vertical shafts. Visit www.jacobs.com and www.herrenknecht.com 08/01.



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