Towerbirch Expansion Project

On 2 September 2015, the National Energy Board (Board or NEB) received an Application from NOVA Gas Transmission Ltd. (NGTL) for approvals to construct and operate pipeline facilities in northwest Alberta and northeast British Columbia that will be part of the existing NGTL System. The proposed Towerbirch Expansion Project (Project) includes:

  • construction of 87 km of new gas pipelines and associated facilities in northwest Alberta and northeast British Columbia,
    • Tower Lake Section (32 km of 762 mm OD pipe)
    • Groundbirch Mainline Loop (55 km of 914 mm OD pipe)
  • additional associated facilities, including meter stations, valves sites and pipeline tie-ins.

As the Project would require more than 40 km of new pipeline and would be regulated under the National Energy Board Act (NEB Act), it is therefore a designated project under the Canadian Environmental Assessment Act, 2012 (CEAA 2012) and requires a CEAA 2012 environmental assessment (EA) for which the NEB is the Responsible Authority.

Consultation and Cooperation with Other Jurisdictions

Section 18 of the CEAA 2012  provides that, as the responsible authority for this Project, the NEB must offer to consult and cooperate with respect to the EA of the Project with any jurisdiction referred to in paragraphs (c) to (h) of the definition of “jurisdiction” in CEAA 2012 subsection 2(1) if that jurisdiction has powers, duties, or functions in relation to an assessment of the environmental effects of the designated project. 

If you believe you are such a jurisdiction under CEAA 2012 section 18, please self-identify with the NEB describing how you meet the definition of jurisdiction and explain your relevant EA power, duty, or function, as well as the activities your jurisdiction plans to undertake to exercise your powers, duties, or functions to complete an EA of this designated project.  The Board’s assessment process often includes steps that might be relied upon by other jurisdictions that have EA powers, duties, or functions, or may be able to provide other opportunities for cooperation with the EA process of eligible jurisdictions if timely notice is provided.  Accordingly, please write to the NEB as soon as possible and, in any event, no later than 10 days prior to the deadline for applying to participate with this information, so that opportunities can be explored.  

All correspondence should be addressed to the Secretary of the Board and filed by fax (1-877-288-8803), through the NEB’s e-filing tool (on the NEB’s website [] under Submit Applications and Regulatory Documents, then File Hearing Documents), or mailed in hard copy to:

National Energy Board
517 Tenth Avenue SW
Calgary, Alberta 
T2R 0A8


Latest update

June 23, 2017 - The assessment decision statement has been issued to the proponent.


External links

Please note that access to external websites is provided solely as a courtesy. Users should be aware that the information offered by non‑Government of Canada websites that are not subject to the Official Languages Act might be available in only one language.


National Energy Board
Nancy MacWhirter, Process Advisor
517 Tenth Avenue SW
Calgary, Alberta T2R 0A8
Telephone: 1-800-899-1265
Fax: 1-877-288-8803

  • Location

    • Bessborough (British Columbia)
    • Gordondale (Alberta)
    • Tower Lake (British Columbia)
  • Nature of Activity

    • Oil and Gas
  • Assessment Status

  • Start Date

  • Proponent

    NOVA Gas Transmission Ltd.
  • Authorities

    • National Energy Board
  • Assessment Type

    Environmental assessment under CEAA 2012
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

Nearby assessments

...within 200 kilometres
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