POLL: Is an Immersed Tube Tunnel a viable option for crossing the Columbia River?

Is an Immersed Tube Tunnel a viable option for crossing the Columbia River?
Is an Immersed Tube Tunnel a viable option for crossing the Columbia River?*
263 votes

*More info:


Also read:

Receive comment notifications
Notify of
guest

1 Comment
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
1
0
Would love your thoughts, please comment.x
()
x