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Association canadienne des tunnels
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| Date | Location | Event | Contact |
| Nov 16-18, 2025 | Vancouver, B.C. | 2025 TAC Workshop: Health and Safety in Tunnelling We are excited to announce the TAC Workshop on Health & Safety in the Canadian Tunnelling Industry, set to take place from November 15-18, 2025, in Vancouver, B.C.! The 3-day hybrid workshop will focus on the critical topic of safety in tunnelling through engaging sessions that explore real-world challenges and innovations in the field. Whether you're in engineering, construction, regulation, legal, or insurance, this is the event to attend. We hope to see you in 2025 to experience the best that TAC and Vancouver, British Columbia, have to offer! Registration is OPEN! See all the Workshop details including the preliminary program on the event website: https://site.pheedloop.com/event/EVEDFJBGYXABH/home | Visit the Workshop Website |
| Nov 27, 2025 | The University Club | University of Alberta 11435 Saskatchewan Drive Edmonton, AB T6G 2G9 | TAC Alberta Chapter Talk: West Valley LRT Drainage Relocation Talk The TAC Alberta Chapter is excited to announce our next talk presentation event. Topic: West Valley LRT Drainage Relocation Presenters: Shiva Maharjan, E.I.T., PMP, Project Manager, Shanghai Construction Group (Canada) Corporation Location: University of Alberta Faculty Club (11435 Saskatchewan Dr NW, Edmonton, AB T6G 2G9) Date: Thursday, November 27, 2025 Time: 5:30 pm - 8:00 pm Registration Cost: Complimentary thanks to SCG Canada! Presentation Overview: The Valley Line West LRT project, currently under construction, will connect downtown Edmonton to the city's west side. As part of the project, EPCOR, which owns and operates several sanitary sewers along the LRT alignment, needed to replace a primary sewer due to conflicts with the new infrastructure. Given the location, depth, and length of the sewer—combined with other utility conflicts—microtunnelling was selected as the preferred construction method. Shanghai Construction Group was awarded the contract and developed a plan to execute the work within a tight construction schedule. Four different drives were planned to install the new trunk in conjunction with the open-cut portions, with drive lengths ranging from 130 to 990m. To meet the timeline, two of the drives were planned to be done simultaneously from opposite sides of an existing 1500 mm diameter trunk, which placed the trunk at risk during the installation. Tight working spaces, which at times were limited to one to two lanes of traffic, required small and compact equipment and shafts to complete the drives. This presentation outlines the methodology and construction planning needed to execute the multiple microtunnel installations and a number of the challenges and obstacles encountered during construction. The Valley Line West LRT Drainage Relocation project in Edmonton, Alberta, presented a series of intricate challenges for microtunneling due to dense urban utility networks and unpredictable subsurface conditions. Led by Shanghai Construction Group (Canada) Corporation, the project involved relocating critical drainage infrastructure to accommodate future LRT tracks, spanning multiple tunnel drives and shaft locations across Stony Plain Road and adjacent streets. A detailed conflict matrix identified over 20 known utility conflicts, categorized by priority. Mitigation strategies included realignment of tunneling paths, descope of microtunneling segments, hand-tunneling, and temporary flow control systems such as inverted siphons. At several locations—136 St, 133 St, 121 St, 120 St, and 118 St—solutions were tailored to address direct conflicts with manholes, rib-and-lagging tunnels, active telecom lines, and deteriorated clay pipes. Unknown conflicts emerged during tunneling at 134 St and 119 St, where operations were halted due to high torque and obstruction by reinforced concrete piles. These were resolved through emergency rescue shafts, MTBM realignment, and ground investigations using hydrovac and ground penetrating radar. The presentation highlights the importance of adaptive engineering, real-time monitoring, and collaborative problem-solving in navigating both anticipated and unforeseen subsurface challenges in urban microtunneling projects. Get to know the presenter: Shiva Maharjan, E.I.T., PMP Shiva Maharjan is a seasoned project manager and technical lead with over a decade of multidisciplinary experience spanning urban infrastructure, trenchless tunneling, and high-voltage electrical systems. Based in Edmonton, Alberta, Shiva brings a rare blend of engineering precision, strategic leadership, and stakeholder fluency to complex construction environments. Currently serving as Project Manager at Shanghai Construction Group (Canada) Corporation, Shiva oversees major microtunneling and drainage relocation projects for clients including the EPCOR, City of Edmonton, and Government of Nepal. His portfolio includes high-profile works such as the Valley Line West LRT Drainage Relocation, Groat Road Storm Trunk Rehabilitation, and the 99 Avenue Tunnel Rehabilitation Project—where he managed the installation of over 1 km of non-circular 1300 x 950 mm ID sanitary trunk tunnel at depths reaching 30 meters. Shiva’s expertise in MTBM (Microtunnel Boring Machine) operations and environmental compliance has made him a trusted figure in both trenchless and open-cut construction. His technical acumen is matched by his ability to lead multidisciplinary teams, negotiate with stakeholders—including indigenous communities—and deliver cost-effective solutions. He holds a Master of Science in Electrical Utility Engineering from Curtin University (Australia), a Postgraduate Diploma in Sustainable Development from Macquarie University (Australia), and a Bachelor's in Electrical Engineering from Tribhuvan University (Nepal). His credentials are recognized by WES Canada, and he is certified in Project Leadership (NAIT) and Project Management Professional (PMP), alongside safety and field certifications such as CSTS, Fall Protection, and Confined Space Training. | Register HERE! |
| Dec 03, 2025 | Trolly 5 - 728, 17th Avenue SW | TAC Alberta (Calgary) Chapter: Holiday Mixer You're Invited: TAC Calgary Holiday Mixer Calling all tunnellers in the Calgary region! Join the TAC Calgary Chapter as we celebrate the end of 2025 with a laid-back evening of networking, drinks, and bites. Connect with fellow professionals and toast to the year’s achievements in a relaxed atmosphere. When: Wednesday, December 3, 2025 Location: Trolly 5 - 728, 17th Avenue SW Time: 4:00 p.m. Registration Cost: $10 – for TAC Members $20 – for Non-members Event Highlights: - Networking & Entertainment - Connect with industry professionals in a lively environment! - Short Technical Session - A 30-minute-long presentation will cover a timely topic in the industry. See details below! - Food & Drink - Enjoy two drink tickets courtesy of TAC and a selection of delicious appetizers and refreshments. Technical Session Details: Title: "North America's Largest Diameter MTBM: The Northwest Inner City Calgary Upper Plateau Sewer Separation Project" Learn how Calgary utilized a 3.4 m diameter MTBM to install 755 m of vital stormwater infrastructure beneath complex urban terrain. Innovative trenchless design minimized disruption while enhancing flood protection for the Sunnyside community Confirmed Presenters: - Craig Pass P.L. (Eng.), Senior Infrastructure Engineer / Project Manager, Associated Engineering - Alex Eddie M.Sc., P.Eng., Geotechnical Engineer, Thurber Engineering Abstract: The Northwest Inner City (NWIC) Upper Plateau Sewer Separation Project is a multi-year project designed to alleviate flooding in the Sunnyside inner-city community in Calgary, Alberta. The project includes a large diameter storm trunk siphon to intercept stormwater from the upslope communities, bypassing Sunnyside and discharging directly to the Bow River. Trenchless construction was deemed necessary to minimize disturbance to the community and traverse the change in topography from the upper plateau to the lower elevation Bow River. The project was designed as a single ~755 m long, 3,400 mm inside diameter, tunnel drive between a launch shaft at the base of the upper plateau and a reception shaft adjacent to the Bow River. The tunnel alignment consisted of two distinct sections: a deep section through Paskapoo Formation bedrock that included a crossing of the Calgary CTrain red line and a horizontal curve; and a relatively shallow section (less than three tunnel diameters of cover) along 7 Street within Sunnyside initially through bedrock, but ultimately transitioning into the alluvial channel deposits. Construction started in November 2021, and installation of the storm trunk siphon was completed by microtunnelling at the end of 2022. BIO – Craig Pass P.L. (Eng.) Craig Pass, with Associated Engineering’s Calgary office has over 24 years of experience in linear infrastructure, facilities and water management, Craig provides technical expertise rooted in design, construction and trenchless experience. These skills are supplemented with leadership, communication and organizational skills to effectively lead projects through all phases and ultimately to successful conclusions. With experience in all phases of project delivery, Craig's direct role with the client and field staff leverages experience with operation and maintenance considerations to optimize design of infrastructure with long term functionality in mind. He is currently the treasurer for NW NASTT Chapter and has served on the board since 2022. For NWIC UPS project, Craig was involved in all stages from feasibility and pre-design to senior reviewer on detailed design, contract documents and technical specifications. During construction and post construction he provided technical support to field staff. BIO - Alex Eddie M.Sc., P.Eng. Alex Eddie has been working as a geotechnical engineer at Thurber since 2017, undertaking geotechnical investigations, reporting, construction monitoring and project management on a variety of geotechnical projects in Calgary and across Alberta and BC. Alex has a master's degree in tunnelling and underground space engineering from the University of Warwick and specializes in providing geotechnical support for trenchless installations. Prior to joining Thurber, Alex performed design coordination, temporary works design, and on-site support for the construction of soft ground tunnels and shafts on tunnel projects in London, England. Alex completed both phases of the geotechnical investigation for the Northwest Inner City (NWIC) Upper Plateau Sewer Separation Project and provided support during construction. | Register HERE! |
| Dec 04, 2025 | Bellvue Manor, 8083 Jane Street, Vaughan, ON, L4K 2M7 (East side of Jane, North of Hwy 7). | TAC Ontario 2025 Year End Social As 2025 comes to a close, it's time to come together, celebrate our accomplishments, and enjoy an evening of festive cheer! The TAC Ontario Chapter is thrilled to invite you to the TAC-ON Year-End Social and Santa Barbara Celebration. Join fellow TAC members, colleagues, and friends for a night of fun, food, and great company. What to Expect: • A delicious buffet dinner & drinks • Live music • Exciting raffle prizes (bring cash to participate!) • Networking with industry peers • TAC Coffee Table Book for sale at $200 (HST included) • And a few surprises along the way! Event Details: • Date: Thursday, December 4, 2025 • Location: Bellvue Manor, 8083 Jane Street, Vaughan, ON, L4K 2M7 (East side of Jane, North of Hwy 7). • Time: 5:30 p.m. (Doors Open) Registration: • TAC Members: $20 • Non‐Members: $120 (includes a $30 voucher towards TAC 2026 membership) • Corporate members are entitled to two participations as member. Online Pre-Registration is required. Walk-ins may not be accepted if we exceed the capacity and contract value. Showcase your Company - Sponsorship Opportunities are Available: • Platinum sponsorship (includes posting of banners and company promos, along with and 4 complementary registrations) • Gold sponsorship (includes posting of banners and company promos along with 2 complementary registration). Refer to the event registration page for more information. | Register HERE! |
| Dec 09, 2025 | Hotel Alt Montréal | TAC Quebec and Maritimes End of Year Banquet The Tunnelling Association of Canada, Quebec and Maritimes Chapter is pleased to invite you to their end-of-year banquet on December 9th. The event will feature a special ceremony to recognize Serge Moalli’s lifetime achievement award, presented by TAC in 2024. Mr. Moalli will also be making a technical presentation to showcase career highlights and major projects accomplished during his career, and reflect on current and upcoming projects in Montreal. The evening will consist of a cocktail reception from 17:00 to 18:00, followed by a sit-down dinner. Talks from TAC executives and Mr. Moalli’s presentation will take place during the dinner. Here is all the information you need for this event: • Where: Hotel Alt Montréal • When: Tuesday, December 9, from 17:00 to 21:30 • Price: • Regular $65 • Students $30 Get to know Serge Moalli: With over 45 years of experience in the heavy construction industry, Serge Moalli is a recognized leader in complex underground and infrastructure projects. His expertise spans mechanized tunneling (TBM and roadheader) and conventional methods (drill and blast), as well as shaft excavation and sinking, caissons, formwork, and concrete works. Serge has played a pivotal role in advancing techniques in wet and dry shotcrete application, rock grouting, and constructability planning. His deep knowledge of project management, cost engineering, and proposal development for Design-Build and Design-Bid-Build projects has made him a trusted advisor on some of the most challenging projects worldwide. --- L’Association canadienne des tunnels (ACT), Chapitre Québec et Maritimes, a le plaisir de vous inviter à son banquet de fin d’année le 9 décembre. L’événement comprendra une cérémonie spéciale pour souligner le prix de reconnaissance pour l’ensemble de la carrière remis à Serge Moalli par l’ACT en 2024. M. Moalli présentera une conférence technique mettant en valeur les moments forts de sa carrière et les grands projets réalisés, tout en offrant une réflexion sur les projets actuels et à venir à Montréal. La soirée débutera par un cocktail de réception de 17 h à 18 h, suivi d’un dîner assis. Des allocutions des dirigeants de l’ATC et la présentation de M. Moalli auront lieu pendant le repas. Voici les informations essentielles pour cet événement : • Lieu : Hôtel Alt Montréal • Date : Mardi 9 décembre, de 17 h à 21 h 30 • Tarif : • régulier 65 $ • étudiants 30 $ Serge Moalli: Fort de plus de 45 ans d’expérience dans l’industrie de la construction lourde, Serge Moalli est reconnu comme un leader dans la réalisation de projets souterrains et d’infrastructures complexes. Son expertise couvre le creusement mécanisé (TBM et haveuse) et les méthodes conventionnelles (forage et dynamitage), ainsi que l’excavation et l’affouillement de puits, les caissons, le coffrage et les ouvrages en béton. Serge a joué un rôle clé dans l’avancement des techniques de béton projeté (sec et humide), de l’injection de coulis et de la planification de la constructibilité. Sa connaissance approfondie en gestion de projet, ingénierie des coûts et élaboration de propositions pour des projets en conception-construction ou conception-soumission-construction en fait un conseiller de confiance pour certains des projets les plus complexes à l’échelle mondiale. | Register HERE! |
| May 15-21, 2026 | Montréal, Québec, Canada | The WORLD TUNNEL CONGRESS 2026: Montréal Planning is underway for the WTC 2026! Get excited to join us in Montréal to meet high-profile leaders, decision-makers, and influencers from around the world. The Call for Abstracts will be launched in March 2025 followed by Registration in June 2025. In the meantime, be sure to join the conversation! We are excited to launch the www.wtc2026.ca website, distribution list as well as the World Tunnel Congress 2026 (WTC 2026) LinkedIn page! These platforms will keep you updated on all things related to the World Tunnel Congress in Montréal, including the theme "Connecting Communities through Underground Infrastructure / Connecter les communautés au moyen d'infrastructures souterraines." Stay tuned for the latest news, insights, and opportunities to engage with fellow tunnelling enthusiasts in 2026! Let’s connect and shape the future of our industry together! Exhibitor & Sponsorship opportunities are now available. Visit the event website for all the details! | https://wtc2026... |
| Jul 20, 2026 | Copper Creek Golf Club (11191 Highway 27, Kleinburg, ON. L0J 1C0) | SAVE THE DATE - TAC Ontario Chapter 2026 Golf Tournament Join the TAC Ontario Chapter for its 3rd annual golf event in 2026 at the Copper Creek Golf Club. Show your skills with the club and ball and enjoy a relaxed evening with industry colleagues. Space is limited (only 70 slots available). Registration will be on a first-come, first-served basis. Details: - Monday, July 20, 2026 - Copper Creek Golf Club (11191 Highway 27, Kleinburg, ON. L0J 1C0) Registration will open in early Spring 2026. Registration includes: • Golf fees and dinner. • 18 Holes of Golf including Power Carts, Short Game Driving Range, Locker Room Usage, and Scoring • Dinner menu: will be sent by email for selection upon registration. --- Be a part of our event – get in touch about a sponsorship opportunity! • Bronze sponsorship - $1,000 (includes 1 free entry) • Gold sponsorship - $2,000 (includes 2 free entries) • Platinum sponsorship - $4,000 (includes 4 free entries) Sponsors will be recognized on the course and the TAC website. Get in touch with admin@tunnelcanada.ca today! |
