Tenders expected September, 2001 for Gwinnett County 1.8 km-long x 3.4 m-outside diameter tunnel through Piedmont geology in mixed face and soft ground conditions. Visit www.jjg.com 32/01.The Gwinnet County Department of Public Utilities has awarded a contract to Parsons Brinckerhoff to design a new wastewater transport and storage tunnel adjacent to Snellville, a suburb of Atlanta. As prime consultant for the project, Parsons Brinckerhoff is responsible for preparing a preliminary engineering report and conducting public meetings on the proposed design. The firm will complete final design and assist the county with the bid tendering process. PB will also provide construction management and engineering services during construction of the tunnel.The tunnel, which will be 3.66 m in diameter, will begin at the No Business Creek water reclamation facility and extend for 4,880 m to the shaft at the site of the existing Jack's Creek water reclamation facility. The project will enable the county to decommission the Jack's Creek facility by directing the sanitary flow from the Jack's Creek sewershed to No Business Creek by gravity. The tunnel will collect sanitary flow from another sewershed along its route, reducing power costs to the county by minimizing pumping.It will be driven in rock with a dewatering pumping station in the mining shaft at No Business Creek. There will be two access shafts along the tunnel length with sanitary flow admitted to the system at the upper shaft, at one of the intermediate access shafts, and at the dewatering pumping station. The upper shaft will also provide access and tunnel venting for odour control.Construction on the project is expected to commence in January 2005 with final completion scheduled for December 2007. Visit www.pbworld.com 02/04.The 4,880 m No Business Creek tunnel is still under design with 95% design complete. The tunnel will connect the 30-year-old No Business Creek and the Jacks Creek wastewater plants, that are being closed. Sewage will be pumped through to the F. Wayne Hill Water Resources Center near Buford. The tunnel will mostly follow Springdale and Everson roads, which run east to west, but it will also have to pass under private property. The county is in the process of acquiring subsurface easements from roughly 54 property owners. Finished inner diameter is 3.66 m. There will be four shafts: main shaft (12.2 m diameter and 55 m deep), exit shaft (7.6 m in diameter and 18 m deep) and two intermediate shafts around 4.6 m in diameter and 39 to 46 m deep. Bidding process to start in three to four months, with construction slated to begin in the summer of 2005. Very hard rock, mostly granite and gneiss. RQD some where around 35,000 to 45,000. 85% of the tunnel through hard rock and 15% through mix phase. A TBM will be used. The tunnel may need a maximum of 15% to 20% lining (concrete segmental rings, shotcrete and rock bolts). Mucking-out with loco and muck cars. Construction time to last 36 months, including all four shafts and one lift station. Visit www.gwinnettcounty.com 48/04.Gwinnett's Department of Water Resources on 19th March approved a USD54.2 million contract with a joint venture between Mole, Jay Dee, Kassouf and Murray Hill companies to build the 4,880 m, 3.66 m-diameter No Business Creek wastewater storage tunnel 60 metres below the surface. The tunnel, which will be bored with TBM machinery, will connect the Gwinnett County’s Jacks Creek sewage treatment plant with the now-defunct No Business Creek sewage plant site. From there, south Gwinnett’s sewage will be pumped to the F. Wayne Hill Water Resources Center in Buford. When the project is complete in 2010, the Jacks Creek plant will be shut down, as part of the county’s long-range plan to close its smaller, less-efficient facilities. Entrance shafts will be constructed at the No Business Creek and Jacks Creek water reclamation facility sites and also at the site with two intermediate shafts along the route. Crews will be drilling through hard rock 95% of the way. Click us/62. Visit www.co.gwinnett.ga.us, www.molecon.com, www.jaydeecontr.com and www.kassouftunnel.com 13/07.

  Proposed 35 km-long extension of San Francisco BART will include 14.5 km alignment in tunnel with five underground stations at Berryessa, Alum Rock, Civic Plaza/SJSU, Market St and Diridon/Arena, terminating at Santa Clara Caltrain station. Visit www.hatchmott.com and www.pbworld.com 26/01. 5.4 km-long, 5.5 m-diameter TBM-driven, segmentally-lined twin-tube railway system with eight NATM stations in design for MWAA Dulles airport for completion by 2006. Visit www.hatchmott.com and www.ilf.at 31/01.A USD51.2 million spending has been approved by the Valley Transportation Authority to begin planning the tunnel that will carry BART trains under downtown San Jose. Preliminary engineering is for a 7.2 km twin-bore tunnel that will run 15 to 23 m below ground starting at 28th and Santa Clara streets and extending to west of Interstate 880. Studies are expected to take two years or more. The VTA expects to award USD119 million in contracts for a half-dozen more studies by the end of summer. Visit www.vta.org 09/04.Proposed 25.76 km-long, USD6.1 billion extension of BART to Milpitas, San Jose and Santa Clara will include 6.4 km of twin running tunnels and three underground stations at Alum Rock, Downtown San Jose, and Diridon/Arena to terminate near Santa Clara Caltrain station. EIS during 2009, with construction scheduled 2009-2015. Visit www.vta.org/bart. 08/09.

Invitation to bid, deadline 24.01.2011, for tunnel intrusion detection system for Oakland, Wye and Berkeley Hills tunnels of San Francisco BART. Contract No 79HS-110, value USD1.5-2.0 million (EUR1.11-1.47 million), duration 180 days. Bidders may download request form at www.bart.gov/about/business/procurement/contractsout.aspx to be completed and submitted by 29.11.2011. Sealed bids to District Secretary's Office, 23rd Floor, 300 Lakeside Drive, Oakland, CA 94604-2688. Visit www.bart.gov. 47/11.

Request for Proposals, deadline 13.08.2018, for GEC (General Engineering Consulting) services for the BART Silicon Valley Phase II Extension (Project). GEC services to be performed during the preliminary engineering portion of the Project constitute the base scope of services.  Other Services are options to be exercised at VTA’s sole discretion and will be assigned via Task Orders. The contract is anticipated to be in effect beginning in late 2018 and continuing through completion of the construction, testing and commissioning phases, and closeout and turnover of the Project, an estimated eight (8) years. VTA reserves the right to extend the term of the contract. Deadline to Submit Questions July 18, 2018 by 5:00 p.m. (Pacific Time). The Pre-Proposal Conference will be held on July 13, 2018 at 10:00 a.m. at  Santa Clara VTA, Building A, Auditorium San Jose, California.  Contact  Santa Clara Valley Transportation Authority, attn Ephraim Cadaing, San Jose (California), email ephraim.cadaing@VTA.org. Click here or visit http://www.vta.org/servlet/servlet.FileDownload?file=00P1H000015OtenUAC.

Ref.n. RFP S18088 . 27/18.

The VTA Board of Directors awarded to the Mott McDonald/PGH Wong Engineering Joint Venture (MMW) the EUR109.03million (USD125 million) General Engineering services contract for the VTA’s Phase II Project. The VTA’s Phase II Project is a 9.66 km (6-mile) extension of the BART subway into downtown San Jose and Santa Clara, utilizing an innovative single-bore tunnelling methodology that minimizes construction disruptions. The project will include 4 stations - with three underground and one above - a 8.05 km (5-mile) subway tunnel, two ventilation structures, and a maintenance facility. BART will be responsible to operate and maintain the extension after its completion. Contact Santa Clara Valley Transportation Authority, attn Ephraim Cadaing, San Jose (California), email ephraim.cadaing@VTA.org. Visit http://www.vta.org/News-and-Media/Connect-with-VTA/General-Engineering-Contract-Awarded-for-BART-Phase-II-Project#.XDw2gVxKjIU.

Ref.n. RFP S18088. 03/19.

The deadline for the SOQ (Statement Of Qualifications) submission for RFQ S20221 BART Silicon Valley Phase II Extension Program / Tunnel / Trackwork Contract 2 has been postponed from 26/02/2021 to 12/03/2021.    

The 10 km (6-mile), BART Phase II Extension Project will extend southwest from the newly opened Berryessa/North San José Station with three more stations in San Jose and one in Santa Clara adjacent to the existing Santa Clara Caltrain Station.  About 8km (5 miles) of the alignment will be underground, with a single bore tunnel containing side-by-side and stacked tracks and platforms. Construction is planned to begin in 2022, with substantial construction completed by 2028, followed by system testing and then passenger service.  

By 23/04/2021 the Short-List Announcement. Three or up to four of the highest-ranked Respondents will be invited to submit proposals in response to VTA’s forthcoming Request for Proposals (RFP) about Contract 2.   

Contact  VTA- Department BART Silicon Valley, attn Mary Talentino (Contracts Manager), tel (408) 321-5733, email mary.talentinow@vta.org.   Please click here for further on the tender, here and us/61 for tunnelbuilder archive. Ref.n. S20221. 08/21. 

Request for Proposals, SOQ deadline 18/05/2021, for  the design, installation, and testing of all rail Systems for the BART Silicon Valley Phase II Extension (Project), Package 1 (CP1). VTA will review and score the SOQs to determine which Respondents are best suited and qualified to successfully execute the design and construction of the Project.  A Short-List of three (3) (or up to four (4)) of the highest-ranked Respondents will be created by 13/07/2021, each of which will be invited to submit proposals.  The Pre-Proposal Conference will be held on March 09, 2021 at 01:00 p.m.. Contact  BART Silicon Valley, attn Mary Talentinow, tel (408) 321-5733, email mary.talentinow@vta.org. For further, please click here. Ref.n. RFP S20220. 08/21. 

The Santa Clara Valley Transportation Authority (VTA) has completed its evaluation of Statements of Qualifications submitted in response to the Request for Qualifications (RFQ) S20221 BART Silicon Valley Phase II Extension Program / Tunnel & Trackwork Contract 2.  

The Short-Listed teams, to be invited to submit proposals in response to VTA’s forthcoming RFP, are 

• The BART Silicon Valley Phase II Tunnel Partners (B2TP), a Joint Venture between Acciona Construction Corp USA (Acciona), FCC Construcción S.A. (FCC) and The Lane Construction Corporation (Lane), supported by Hatch Associate Consultants Inc. (Hatch). 
• Bay Valley Connect, a Joint Venture between Civil & Building North America (BouyguesTP’ssubsidiaryintheU.S.),VINCI ConstructionandBarnard Construction, supported by Parsons 
• Kiewit Shea Traylor Joint Venture, a JV between Kiewit Infrastructure West Co, J.F. Shea Construction and Traylor Brothers, supported by Kiewit Engineering Group and ARUP 

For further information please click here. Also visit  https://secure.procurenow.com/portal/vta/projects/6325. Ref.n. RFP S20221. 22/21. 

The Santa Clara Valley Transportation Authority (VTA) has completed its evaluation of Statements of Qualifications submitted in response to the RFQ for the design, installation, and testing of all rail Systems for the BART Silicon Valley Phase II Extension (Project), Package 1 (CP1). The Bechtel Infrastructure Corporation and Mass Electric Construction Company  short-listed teams have to submit proposals. Contact  BART Silicon Valley, attn Mary Talentinow, tel (408) 321-5733, email mary.talentinow@vta.org. For further, please click here. Ref.n. RFP S20220. 26/21. 

Request for Proposals, SOQ deadline 23/09/2021, for the design and construction of the three underground stations - 28th Street/Little Portugal, Downtown San Jose (DTSJ) and Diridon  - along with their associated headhouse, ancillary facilities, and street-level improvements for the BART Silicon Valley Phase II Extension (Project), Contract Package 4 (CP 4-Stations). A Short-List of up to four (4) of the highest-ranked Respondents will be created by 30/11/2021, each of which will be invited to submit proposals.  The Pre-Proposal Conference will be held on July 12, 2021 at 01:00 p.m.. Contact  BART Silicon Valley, attn Mary Talentinow, tel (408) 321-5733, email mary.talentinow@vta.org. For further, please click here. Ref.n. RFP S20241. 26/21.

12.8 km x 6 m-diameter TBM-driven sewer in design for Nancy Creek, Atlanta for completion in response to consent decrees by February, 2003. Hard metamorphic rocks expected with gneiss, schist, quartzites and granite predominating. Internal lining to 5 m-diameter proposed. Design/build request for proposal due end-June, 2001. Visit www.jjg.com 25/01. Award imminent for $40 million, 1.28 km-long x 3.65 m-diameter steam distribution conduit to be driven for ConEdison beneath 1st Avenue by hardrock TBM between two 33.5 m-deep x 7 m-wide x 12 m-long shafts. Design/build contractor will select lining. Visit www.jenny-engineering.com 29/01. The Atlanta City Council has approved a $131.5 million contract for Obayashi Corporation to construct the Nancy Creek sewer tunnel. The purpose of the tunnel is to store rain and sewer overflows until the water can be treated. Much of DeKalb County's sewage flows into the Nancy Creek basin and the city system. The tunnel will originate in north DeKalb where about 4,000 feet (1,220 m) is to be built, and will continue another 7.9 miles (12.7 km) to an Atlanta sewer plant on a bank of the Chattahoochee river. Visit www.obayashi.co.jp/english/index.html 31/02.DeKalb County commissioners voted a resolution backing the city of Atlanta's plans to build part of the 12.9 km-long Nancy Creek sewage tunnel underneath the homes of several dozen DeKalb residents in a neighbourhood between Dunwoody and the city of Chamblee. The $131.5 million tunnel would begin just east of the Chattahoochee river near I-75 and run underneath parts of Atlanta. It would end in DeKalb. Construction awarded to Obayashi. Read E-News Weekly # 42. 42/02.

  Mobilisation underway by Kenny Construction on $37.2 million contract for 5.2 km-long, 3 m lined diameter Borman Park intake tunnel using 3.8 m-diameter Robbins TBM in dolomite of UCS to 24,000 psi. Project includes 58.5 m-deep x 2.6 m-diameter submerged intake shaft and 72.6 m-deep pump shaft with upper 41 m at 9.8 m-diameter caisson and lower 31.5 m as 7.9 m-diameter concrete lined shaft. Completion February, 2003. Visit www.harza.com and www.robbinstbm.com 17/01.

    8.3 km-long, $58 million Walnut Creek-San Ramon Valley transmission improvements project under design for September, 2001 by Camp Dresser McKee, Carollo Engineers and Jacobs Associates will include 1.46 km-long rock tunnel and four microtunnel drives of 64 m to 127 m. Visit www.jacobssf.com 10/01.Modern Continental will install a large diameter transmission pipeline and build a 1.6 km tunnel through central Walnut Creek for EBMUD (East Bay Municipal Utility District). The tunnel starts at the Kaiser overflow parking lot on Newell and goes north under the flood control channel to the armory, near Civic Park. There will be two shafts dug to provide access to the tunnel. The shaft at Newell will be 24.4 m-deep. The shaft at the armory will be 8 m-deep. Crews will build a TBM on a rail in the shaft on Newell and the boring machine will proceed to the shaft at the armory. The Newell shaft is the primary staging area. Modern Continental will use a Herrenknecht 2,000 mm microtunnelling machine, previously used on the Pentagon project in Arlington, Virginia. They will also use an EPB shield and an excavator shield to complete the balance of the tunnelling. Work on the tunnel will begin on 23rd January, 2003 and will be completed in 2004. Visit www.ebmud.com and www.moderncontinental.com 03/03.

Traylor/Jay Dee to bore 1.8 km tunnel at 100 m depth for City of Detroit sewage treatment plant in strata containing methane gas. 2.6 m-diameter antistatic ventilation duct installed with special roof mounting and oval cassette on TBM. Visit www.protan.no 07/01.

City of Fall River CSO length 5 km to be driven by 6.4 m-diameter TBM. One working shaft and nine 1.5 m-diameter drop shafts with 1.4 km of connectors and nine de-aeration chambers. Engineer Camp Dresser McKee with Stone & Webster. Bids: J.F. Shea $99,057,820; Shank/Balfour Beatty $99,299,380; Modern Continental/S.A. Healy JV $101,817,080. Visit www.stoneandwebster.com 06/01.The City of Fall River has reduced the scope of the tunnel project that had been bid on 31st January, 2001, but which was not awarded, and is re-bidding the new design. The new bid date is 23rd January, 2002. Engineers are Camp Dresser & McKee. The work of this contract includes construction of approximately 4,938 linear metres of a 6 metre diameter Combined Sewer Overflow tunnel, 488 linear metres of connecting tunnels, 1 Extreme Event Overflow (EEO) Chamber; 198 linear metres of plant conduit; and transportation and disposal of tunnel muck via railroad or trucking and includes all labour, materials, equipment, supervision, management and other elements required to complete construction. Bidders will be required to demonstrate experience in TBM rock tunnelling, projects of similar size. The estimated construction cost is $59.2 million. The work shall be completed in all aspects within 975 days of the effective date of agreement. Time limits are of the essence of the agreement. The agreement provides for liquidated damages for delay. For further information on how to examine contract documents, please contact F.W. Dodge Division, McGraw-Hill Information Systems Co., 24 Hartwell Ave., Lexington, MA. To obtain contract documents, contact the Bid Documents department at Camp Dresser & McKee, One Cambridge Place, Cambridge, MA 02139.Sealed bids for the construction will be received by the City of Fall River at the office of the Purchasing Department, Room 237, One Government Center, Fall River, Massachusetts until 11:00 AM prevailing time on the 23rd day of January 2002, and at that time and place bids will be publicly opened and read aloud. E-mail to Mr. Robert M. Otoski, otoskirm@cdm.com 52/01.

Prequalification underway for bidders and subcontractors for 330 m-long NATM connection between Mission Valley East LRT extension cut-and-cover twin tunnel and San Diego State University underground station. Deadline for submissions 6th December, 2000 with publication of list on 28th December, 2001 and bid documents available on 1st February, 2001. Details from Dennis Wahl, dwahl@mtdb.sdmts.com Letter of interest to William Prey, bprey@mtdb.sdmts.com MTDB, 1255 Imperial Avenue, Ste 1000, San Diego CA 92101-74590, USA. November 2000.

2.64 km-long twin-bore rock tunnels under active runways with NATM station to be excavated in limestone beneath Minneapolis/St Paul airport. EPB with precast concrete segmental bolted lining specified by designer HNTB Corporation, who have also designed five cut-and-cover tunnels at the airport. Visit www.brierleyassociates.com October 2000. Obayashi-Johnson Bros to commence boring in October, 2001 using refurbished Herrenknecht dual-mode EPB/open TBM in sandstone for $110 million, 1.8 km-long twin tubes at Minneapolis-St Paul. Visit www.hntb.com or www.mottmac.com 28/01. TBM, 6.86 m-diameter, started driving two 2.8 km tubes, 6 metres apart, underneath Minneapolis-St. Paul International Airport on the Hiawatha line from downtown Minneapolis to the Mall of America in Bloomington. Sandstone boulders and hard limestone. Machine expected to surface near the airport's Humphrey Terminal in March, 2002 before being taken apart, trucked back to its starting point and reassembled to bore the second parallel tunnel. Lining ring consisting of six large concrete segments, each 1.5 m-wide by 1.8 m-long and 25 cm-thick, plus one smaller keystone. Also includes the 161 m-long Lindbergh station, 20 metres underground. Opening programmed by late 2003. Cost of $142 million financed by the Metropolitan Airports Commission, plus federal, state and Metropolitan Council funds. Visit www.dot.state.mn.us, www.mspairport.com and www.herrenknecht.com 49/01.$49.5 million has been granted by the Federal Transit Administration for the construction of the Hiawatha Light Rail Transit project. President Bush has proposed $7.2 billion for the 2003 budget. The Hiawatha line extends from the transit mall at Fifth Avenue in downtown Minneapolis along Hiawatha Avenue to a terminus, across 24th Street to the Mall of America in Bloomington. The 18.7 km line includes 17 stations and two 2.2 km tunnels under runways and taxiways to provide two new stations serving Minneapolis St. Paul International Airport. Breakthrough of the first tunnel took place on 25th April, 2002 (see E-News Weekly # 19). Service is scheduled to commence in December 2004.

$40 million, 364 m-long cut and cover, two-cell Lindbergh tunnel beneath new runway and taxiways at Lambert-St Louis Airport under design by URS Greiner for construction late-2002 and completion 2004. Visit www.ursgreiner.com Sept 2000.