The current estimate for completion is 2033 at a cost of 1.6 billion pounds. The total coastal road project is estimated to cost 36 billion pounds.
The exit tunnel loops around to climb to the surface with a reasonable grade. The roundabouts and the cross tunnel at the exit also allow traffic in both directions to share one tube in case there is a problem in the other tube.
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| telegraph "Norway is building a four-lane undersea tunnel that is set to become the world’s longest and deepest." [This web site erroneously has images of a floating tunnel.] |
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| 4:41 video @ 1:06 |
The exit tunnel loops around to climb to the surface with a reasonable grade. The roundabouts and the cross tunnel at the exit also allow traffic in both directions to share one tube in case there is a problem in the other tube.
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| 4:41 video @ 3:07 |
Unfortunately, this is an example of how wrong internet-obtained information can be. As some comments point out, the illustration is wrong because they are not building a floating tunnel. It is being built through the bedrock. But other tunnels in this coastal road project do float.
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| Crazy For Facts posted |
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| 13:40 video @ 2:46 This tunnel is part of the E39 modernization project. The seven yellow dots are the ferry crossings that will be replaced with bridges and/or tunnels. Construction of this tunnel started in 2018. The entire project won't be completed until 205 and will cost at least $40b. The Ryfylke Tunnel is already done, and it is currently the world's longest and deepest road tunnel. This video also shows a floating tunnel. Yet, it shows that the tunnel will always be at least 50m below the water above [@ 8:03], |
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| @ 6:02 |
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