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Author Topic: US 101 from Cannon Beach over the Astoria-Megler Bridge  (Read 3752 times)

Max Rockatansky

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    • Gribblenation
US 101 from Cannon Beach over the Astoria-Megler Bridge
« on: October 28, 2019, 10:43:18 PM »

This past month I drove a segment of US Route 101 northbound from Cannon Beach in Clatsop County, Oregon over the Washington State Line via the Astoria-Megler Bridge.  US 101 through Clatsop County, Oregon has some really interesting alignment changes over the years with much of the original route inherited from the earlier Grant Highway.  Segments of OR 53, OR 104, the US 101 Business Route and OR 202 are all former segments of US 101.  Much longer explanations on alignment changes of US 101, maps and other information are on the link below.

https://www.gribblenation.org/2019/10/us-route-101-from-cannon-beach-oregon.html
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JasonOfORoads

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    • ORoads: The Roads of Oregon
Re: US 101 from Cannon Beach over the Astoria-Megler Bridge
« Reply #1 on: November 30, 2019, 04:34:27 AM »

Great post Max. I've always enjoyed reading up on Gribblenation posts in California, so it's cool to know that you've been doing some entries for the Beaver state.

A point of clarification on the Cannon Beach rerouting: According to my information, US-101 was actually routed along the Cannon Beach bypass all the way back in 1952. That date comes from both an ODOT bypass analysis document from 2004 and the National Bridge Inventory record for the current US-101 Ecola Creek Bridge. The straightline charts from 1950 and 1956 also appear to show the bypass, with old US-101 now considered a "frontage road":





I'm not certain why the bypass was constructed -- a bit more research is needed on that front -- but my guess is that it had something to do with slow moving traffic through Cannon Beach causing safety concerns, especially in low visibility situations. I don't doubt that the original bridge washed away in 1964, however; the NBI record for that bridge says it was built (read: rebuilt) that year (and carries "Alternative Hwy 101").
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Borderline addicted to roadgeeking since ~1989.

Max Rockatansky

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Re: US 101 from Cannon Beach over the Astoria-Megler Bridge
« Reply #2 on: November 30, 2019, 10:09:08 AM »

Yeah I’d say that is pretty clear the bypass was around in the 1950s from what you posted.  I’d speculate that traffic woes were hellacious on US 101 once it opened in downtown Cannon Beach.  The roads can barely handle tourist traffic, I can’t imagine they’d fare much better with mainline traffic.  I suspect you’re right about the original bridge, I would think it might have been damaged but not outright destroyed.  There are a lot of earlier homes still near Ecola Creek that in theory shouldn’t be there if a true washout occurred. 
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nexus73

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Re: US 101 from Cannon Beach over the Astoria-Megler Bridge
« Reply #3 on: November 30, 2019, 12:17:52 PM »

Thank you for the Oregon North Coast history lesson to go along with the highway photos!

Rick
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US 101 is THE backbone of the Pacific coast from Bandon OR to Willets CA.  Industry, tourism and local traffic would be gone or severely crippled without it being in functioning condition in BOTH states.

Max Rockatansky

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Re: US 101 from Cannon Beach over the Astoria-Megler Bridge
« Reply #4 on: December 07, 2019, 10:17:15 PM »

Great post Max. I've always enjoyed reading up on Gribblenation posts in California, so it's cool to know that you've been doing some entries for the Beaver state.

A point of clarification on the Cannon Beach rerouting: According to my information, US-101 was actually routed along the Cannon Beach bypass all the way back in 1952. That date comes from both an ODOT bypass analysis document from 2004 and the National Bridge Inventory record for the current US-101 Ecola Creek Bridge. The straightline charts from 1950 and 1956 also appear to show the bypass, with old US-101 now considered a "frontage road":





I'm not certain why the bypass was constructed -- a bit more research is needed on that front -- but my guess is that it had something to do with slow moving traffic through Cannon Beach causing safety concerns, especially in low visibility situations. I don't doubt that the original bridge washed away in 1964, however; the NBI record for that bridge says it was built (read: rebuilt) that year (and carries "Alternative Hwy 101").

I went back and added the information you cited regarding US 101 bypassing Ecola Creek, I made sure to cite you and your blog.   I have two more Oregon blogs relating to US 30 that I need to get around to but I don't think either will measure up to your post about the derelict section of the Columbia River Highway.  Doug usually hits on Oregon way more than I do on Gribblenation, he posted a bunch of covered bridge stuff earlier this year.
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