NEWS |


RFQs for BC immersed tube CANADA – A request for Qualifications (RFQ) has been issued for British Columbia’s Fraser River immersed tube tunnel Project. The Can$4.15bn (US$3.07bn) eight-


lane tunnel (2 x 4-lanes, plus corridor for cyclists and pedestrians) is to replace the existing George Massey Tunnel on Highway 99. The project is being delivered by the Transportation Investment Corporation for Canada’s Ministry of Transportation and Infrastructure. Procurement is through a


collaborative Progressive Design-Build (PDB) model with target price to have Early Contractor Involvement (ECI). There is to be a Design Early Works Agreement (DEWA) and effective and manageable risk allocation in the final Design-Build Agreement (DBA). The RFQ deadline is 14 September with


the DEWA Request for Proposals (RFP) expected to be issued on 23 October and the DBA RFP in spring 2024. It is anticipated the contract will be awarded in 2025 and construction will begin in 2026. In early 2022, Cowi was appointed as


owner’s engineer and is to conceptualise and oversee removal of the original four- lane George Massey Tunnel, which the company designed in 1959, and construction of its replacement.


TBM milestone in Seattle US – TBM ‘MudHoney’ recently achieved breakthrough on Seattle’s Ship Canal Water Quality Project, completing excavation of the storage tunnel. The Herrenknecht EPBM bored from


Ballard to Wallingford, where it emerged in a flooded shaft. Once ‘MudHoney’ installed the last few tunnel segments the procedure to find had the shaft emptied and then dismantling. Five shafts at Ballard, East Ballard,


Fremont, Queen Anne, and Wallingford will collect stormwater and sewage flows from each basin. Earlier this year, another Herrenknecht


machine completed a conveyance tunnel between Freemont and Queen Anne shafts. For breakthrough, concrete was injected around the shaft to prevent the flow of groundwater. However, for the larger TBM ‘MudHoney’ there was limited working space which led to flooding the shaft to be selected as a better solution. Excavation of a second conveyance tunnel is due to start later this year.


10 | Fall 2023


The project is being developed by Seattle


Public Utilities and King County Wastewater Treatment Division. It is designed to stop 284 million litres of stormwater and sewage flowing into the Lake Washington Ship Canal, Salmon Bay, and Lake Union each year. During a heavy storm, the new tunnel will capture and temporarily store more than 110 million litres of untreated stormwater and sewage until the treatment plant can receive the flow.


Stanley Park water tunnel timeline reset CANADA – Construction of Vancouver’s Stanley Park Water Supply Tunnel has been delayed to a late 2024 expected start. Completion date has been pushed back


to the end of 2029, around a year later than originally planned. The project owner, Metro Vancouver, said


replacing the 1930s water main with the new supply tunnel remains a priority but it is still finalizing approvals due to project complexity. The existing main is near the end of its service life. The project involves construction of three


shafts in Stanley Park, the tunnel with a new water main, and valve chambers. Metro Vancouver told T&T the shaft locations, along with the tunnel alignment and construction process, were selected based on geotechnical, environmental, archaeological, technological, and traffic studies. The project is being designed to current seismic standards.


CGL finishes 10th river


crossing or gas pipes CANADA – Coastal GasLink has completed micro-tunnelling under the Morice River in British Columbia, marking the 10th and final major river crossing for the 670km-long pipeline project. With excavation over, the gas pipe will


be pulled through the concrete tunnel and connected with the rest of the project route which will take natural gas from north- east BC to the LNG Canada processing facility in Kitimat. Hydrotesting will then be carried out on the Morice River crossing. CGL said micro-tunnelling was chosen


for the Morice River crossing because it was the safest method with low environmental impact.


Jacobs finishes wave R&D tunnel design US – The Jacobs has completed the underground infrastructure engineering for the PacWave South commercial-scale, ocean wave energy testing facility in Oregon.


The consultant led the engineering


services for the HDD Company, the design- build contractor for the project, to support the evaluation and testing of new energy generation technologies to turn offshore ocean waves to onshore renewable electricity. The HDD Company is part of the Crossing Group. Delivered for Oregon State University,


the PacWave South project is the first pre- permitted, full-scale test facility for wave energy devices in the US. It is designed to up 20 wave energy converters of various designs to be tested in real-world, open- sea conditions, 11km off the coast of Oregon. The project includes four offshore steel


conduits up to 36.5m below the seafloor and extending a mile offshore, connecting to a bundle of five onshore high-density polyethylene (HDPE) conduits, all installed using horizontal direct drilling (HDD) methods and ultimately connecting to PacWave’s Utility Connection and Monitoring Facility. The project won an award from


the American Council of Engineering Companies in 2022.


Strata, Binni enter partnership US – Strata Worldwide has announced a new global partnership agreement with tunneling software developer Binni. Under the partnership Strata will bring


Binni’s cloud-based software platform for tunnel contractors to the global tunneling market under the brand name TunnelLINK – an integrated platform for collaboration throughout a tunneling project. TunnelLINK is designed to simplify


reporting of TBM operations while combining and visualizing relevant sensor and instrumentation data for informed, real-time analysis. As a web-based productivity tool for


access via smart device, it can manage data from multiple sources and bring it together into customizable dashboards. The software can used in existing or upcoming projects.


ArcelorMittal appoints for NA US, CANADA - ArcelorMittal Fibres, part of the ArcelorMittal Group, has appointed Mark Park as steel fibers sales manager for North America. Until now, the NA steel fibers market has been serviced by the ArcelorMittal Long Products team but as steel fiber reinforced concrete (SFRC) applications gain momentum and the market calls for reduced carbon steel, the group is increasing its local, dedicated resources for the large market.


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