This proved unpopular with local residents, and it is considered unlikely a bored tunnel could accommodate an interchange because of its depth.

On 7 February 2008, bored tunnels were announced as Transits preferred option.

A diversion weir 5 km above the power house feeds water down a bored tunnel to the site.

North of the station the line swings to the east, to run directly under Yonge Street in a bored tunnel.

Thin soil cover prohibited the use of bored tunnel and hacked tunnel methods.

To the east of the station, the subway runs in a twin bored tunnel until just before the next station (Lansdowne).

The river section of the tunnel was connected to bored tunnels on both banks.

For the entire consultation process it was assumed that any underground construction along the Cambie corridor would be by bored tunnel.

"Is an immersed tunnel cheaper than a bored tunnel?"

Pathogenic fungi and bacteria can easily develop in the bored tunnels, causing indirect damage.