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Puget Sound Gateway Program (WA-167 and WA-509 Extensions)

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froggie:
Just for clarification, the 509 extension ties into the existing freeway near SEA, right?

Revive 755:

--- Quote from: The Ghostbuster on December 04, 2020, 10:11:05 PM ---I'm happy to hear that WA 167 will finally be built to Interstate 5. The freeway has dead-ended at WA 161 long enough.
--- End quote ---

What's with the truss bridge in the field north of the current end of WA 167?

jakeroot:

--- Quote from: KEK Inc. on December 04, 2020, 08:18:06 PM ---A future flyover from SB I-5 to NB WA-167 would be the only thing really necessary in that design (since a lot of people from Seattle may use that route to get to WA-410 for Crystal Mtn / Sunrise / Chinook Pass and even access to WA-161 for access to Paradise).  There's already a dedicated bypass from NB I-5 to NB WA-167 and SB WA-167 to NB I-5.  Granted, I'm not familiar with how much Sumner - Tacoma traffic there is.

--- End quote ---

I guarantee you that I-5 southbound to WA-167 northbound (aka southbound towards Puyallup) will be a popular maneuver. 167 gets jammed up regularly south of Auburn into Sumner. This would provide an alternative for traffic coming from the north to access Puyallup and WA-512.

It may also help alleviate some pressure placed on the interchange at 54th in Fife, and the curve going into Fife, two traffic hotspots.


--- Quote from: KEK Inc. on December 04, 2020, 08:18:06 PM ---I notice that 509 has toll points.  I'm hoping they will finally upgrade WA-99 north of the 1st Ave Bridge to freeway standards.  I don't mind paying the toll on the tunnel since I live in Fremont.  It's much more convenient than taking I-5. 

--- End quote ---

North of the 1st Ave South Bridge? Like upgrading East Marginal? I don't think that's very likely.

jakeroot:

--- Quote from: The Ghostbuster on December 04, 2020, 10:11:05 PM ---I'm happy to hear that WA 167 will finally be built to Interstate 5. The freeway has dead-ended at WA 161 long enough. Once the WA 167 freeway is complete, will existing 167 along River Road be reverted to local control as a city street?

--- End quote ---

Most likely it will be given over to Pierce County, or it will be renumbered. There is a county project to build a new bridge over the Puyallup River, about halfway down River Road between Puyallup and Tacoma, and I could see some value in Pierce County owning the road once that project is underway and the 167 extension is complete.


--- Quote from: Revive 755 on December 05, 2020, 12:46:38 PM ---What's with the truss bridge in the field north of the current end of WA 167?

--- End quote ---

That was the original bridge over the Puyallup River, just to the south of the interchange. It was relocated while the state sought a buyer...no luck, clearly.

jakeroot:

--- Quote from: froggie on December 05, 2020, 11:45:05 AM ---Just for clarification, the 509 extension ties into the existing freeway near SEA, right?

--- End quote ---

Correct, yes. The trumpet interchange at S 188 St will be converted into something else that will allow full movement.

The only evidence of alignment so far, beyond a lack of buildings along what is the apparent routing, is this overpass along 24th/28th Ave S, which the 509 extension will pass under.

Here's an image of the whole alignment. My guess is that about half the cost of the project is going into improvements along I-5, especially at WA-516/Kent-Des Moines Road ...

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