Tunnel connecting Seattle to Kitsap in Future? (Edmonds, Bremerton: 2014, how much)

[Inkpoe]

Originally Posted by Ruth4Truth

5 miles is nothing. That won't get you to the Kitsap Peninsula. The Chunnel (under the English Channel) is 31 miles long. That's closer to the distances that would be necessary.

Maybe the best route, to keep it out of Seattle's way, would be from around Edmonds somewhere, across to north of Kingston.

I think the route b/w Seattle and Bainbridge Island is only like... 8 miles or so, that's why I was saying the idea could be feasible. The cost would definitely be absurd, so I don't know if it'll ever happen.

[Ruth4Truth]

Originally Posted by Inkpoe

I think the route b/w Seattle and Bainbridge Island is only like... 8 miles or so, that's why I was saying the idea could be feasible. The cost would definitely be absurd, so I don't know if it'll ever happen.

Thanks, I was trying to find the distance between Sea. & Bainbridge. Still, seems like it would be more than 8 or 10 miles...

Seattle can't handle any more traffic, though. Shoreline or Edmonds or Everett would be good. Or maybe West Seattle or south of there, but then W Seattle would get wrecked.

[Flightoficarus87]

I don't see this happening (at least any time soon) for 3 reasons...

- The city of Seattle (and to a lesser extent, the state) trying to reduce the number of cars in the city through "punish drivers" policies - the current ferry system mitigates car inflow, to some extent.

- NIMBYism from some peninsula/island communities. Making them more feasible bedroom community options for people working in Seattle would likely invite rampant growth/major COL spikes. Lots of folks who live out there will likely oppose such a project. To a lesser extent, there may also be some environmental NIMBYism over concerns of increasing sprawl in the region/possible effects on Puget Sound as well.

- The initial upfront costs. Building a tunnel system to accommodate both population growth, as well as increased port/ship activity as the region grows would cost a pretty penny - when people are already being squeezed for existing infrastructure projects, such as ST3.

[Inkpoe]

Originally Posted by Ruth4Truth

Thanks, I was trying to find the distance between Sea. & Bainbridge. Still, seems like it would be more than 8 or 10 miles...

Seattle can't handle any more traffic, though. Shoreline or Edmonds or Everett would be good. Or maybe West Seattle or south of there, but then W Seattle would get wrecked.

Wikipedia had the distance listed @

Seattle -- Bainbridge Island: 8.6 miles
Seattle -- Bremerton: 17 miles
Mukilteo -- Clinton: 3.32 miles
Edmonds -- Kingston: 5.68 to 6 miles

Fauntleroy to Southworth distance wasn't listed, but a source online said it was about "5 miles across".

I think as long as Seattle is desirable, traffic is going to be wrecked either way.

[grega94]

Distance between Mukilteo and Whidbey Island is 3.252 mi
Distance between west point (discovery park) and Bainbridge island is 4.653 mi
Distance between alki point and Bainbridge Island is 4.450 mi
Distance between Brace point (Flountleroy) and Vashon Island is 4.235 mi
Distance between three tree point (Burien/Normandy Park) and Vashon Island is 4.121 mi

Also if you don't want to be underground for 5 miles we could build a submerged floating tunnel, one hasn't been built yet, but considering we have the worlds longest floating bridges, it would only make sense that we would have the first floating/suspended tunnels, and these tunnels theoretically could have windows too.

[CrazyDonkey]

Made up of a series of underwater valleys and ridges called basins and sills, Puget Sound is deep, with an average depth of 450 feet. The maximum depth (930 feet) occurs just north of Seattle.

Geology of Puget Sound

[Ruth4Truth]

Originally Posted by grega94

Distance between Mukilteo and Whidbey Island is 3.252 mi
Distance between west point (discovery park) and Bainbridge island is 4.653 mi
Distance between alki point and Bainbridge Island is 4.450 mi
Distance between Brace point (Flountleroy) and Vashon Island is 4.235 mi
Distance between three tree point (Burien/Normandy Park) and Vashon Island is 4.121 mi

Also if you don't want to be underground for 5 miles we could build a submerged floating tunnel, one hasn't been built yet, but considering we have the worlds longest floating bridges, it would only make sense that we would have the first floating/suspended tunnels, and these tunnels theoretically could have windows too.

Thank you for looking up those distances, grega.

The Bay Area BART tunnel across San Francisco Bay is not underground. It doesn't float, either. It lies on the bottom of the Bay. I guess that wouldn't be possible in Puget Sound.

[grega94]

Originally Posted by Ruth4Truth

Thank you for looking up those distances, grega.

The Bay Area BART tunnel across San Francisco Bay is not underground. It doesn't float, either. It lies on the bottom of the Bay. I guess that wouldn't be possible in Puget Sound.

Are you talking about immersed tubes?

And why wouldn't that be possible in the Puget sound? Is it too deep?

[Hemlock140]

Originally Posted by Ruth4Truth

Thank you for looking up those distances, grega.

The Bay Area BART tunnel across San Francisco Bay is not underground. It doesn't float, either. It lies on the bottom of the Bay. I guess that wouldn't be possible in Puget Sound.

No.

https://www.seattletimes.com/life/tr...a-this-summer/

Largest container ship ever to visit U.S. arrives in Seattle | KOMO

[grega94]

Originally Posted by Hemlock140

No.

https://www.seattletimes.com/life/tr...a-this-summer/

Largest container ship ever to visit U.S. arrives in Seattle | KOMO

Ok so how deep are the hulls of these ships, what depths do they need to stay afloat?

IDK about the cargo ships, but for the largest cruise ship in the world, only 30 ft of the ship is underwater and considering that the Puget sound has an average depth of 460 ft, there could easily be a submerged floating tunnel that would go down to around 200 ft.

https://www.livescience.com/7922-wor...ip-floats.html