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The US Route 2 and US Route 97 Concurrency in Chelan and Douglas Counties, WA

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Rothman:
Heh.  If you got confused by this, come out to NY...

stevashe:

--- Quote from: Amaury on October 01, 2022, 06:12:17 PM ---Whatever the case, with how important US Route 2 is, I'm rather surprised that they didn't adjust the mileposts in Washington to reflect the change from milepost 128 to the Washington-Idaho border in Newport, Washington, and vice-versa for US Route 2's mileposts on the westbound side between Newport and milepost 128 near the Washington State Route 28 junction in Wenatchee. For example, if they were to correct things, milepost 128 would actually be milepost 121 and so forth.

--- End quote ---

Mile posts are generally not changed because it's more effort than it's worth to replace all the signs, not to mention it can cause confusion with any old records that refer to the old mileposts. Just look at at SR 530 or SR 17, the first mileposts on those routes are 17  and 8, respectively, due to being shortened at their starting ends.

Other notable/noticeable skips include SR 16 going from MP 5 to MP 8  across the Tacoma Narrows Bridge since it used to have a longer route in Tacoma, and I-90 starting around MP 2, which we discussed a while back in the Washington thread: https://www.aaroads.com/forum/index.php?topic=18003.msg2558829#msg2558829

If you want to get really into the weeds, a listing of all Milepost gaps and overlaps is available in the WSDOT state highway log, starting on page 36 of this PDF: https://wsdot.wa.gov/sites/default/files/2022-07/Statewide-Highway-Log-2021.pdf (it's in the bookmarks as "Equation Listing")

ErmineNotyours:
While I'm aware of WSDOT never moving mileposts due to road changes, I'm still mystified by the reposting of SR 181 around 2018.  In this case they moved the post from the light pole in the foreground to a new post behind the bus shelter, a distance of about 20 feet.  All the mileposts were put on new poles with pre-drilled holes in them, but I never checked how far the others moved.

Alps:

--- Quote from: ErmineNotyours on October 05, 2022, 06:41:56 AM ---While I'm aware of WSDOT never moving mileposts due to road changes, I'm still mystified by the reposting of SR 181 around 2018.  In this case they moved the post from the light pole in the foreground to a new post behind the bus shelter, a distance of about 20 feet.  All the mileposts were put on new poles with pre-drilled holes in them, but I never checked how far the others moved.



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Up to 50 feet off is generally ignored with mileposts, especially whole ones.

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