The Cassiar Connector is a highway traffic tunnel on the Trans-Canada Highway. It is located in the north-east corner of Vancouver, British Columbia, near the Vancouver-Burnaby border. Travelling northward, the tunnel begins underneath Adanac Street, passing under the interchange between East Hastings Street and the Highway 1 offramps. It ends underneath Triumph Street, with the highway continuing north to the McGill Street interchange (to the Port of Vancouver) and the Ironworkers Memorial Second Narrows Crossing towards the District of North Vancouver.