National Boards > Bridges

Will Continental Drift Ever Affect Bridges?

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Mike2357:
Wait is there actually a real San Andreas city??

1:

--- Quote from: Mike2357 on August 14, 2021, 08:02:01 PM ---Wait is there actually a real San Andreas city??

--- End quote ---

It exists, but it's pretty small. The San Andreas Fault, a fault line, is much more well known.

NE2:

--- Quote from: Max Rockatansky on August 14, 2021, 07:53:00 PM ---
--- Quote from: Evan_Th on August 14, 2021, 02:58:07 PM ---
--- Quote from: NE2 on August 14, 2021, 02:54:29 PM ---Not in the U.S., but maybe it would be an issue for a Gibraltar bridge.

--- End quote ---

The San Andreas Fault is already causing minor damage to California roads.

--- End quote ---

There is a bridge in Parkfield which has a noticeable bend in from the San Andreas Fault moving.

--- End quote ---

https://www.schweich.com/imagehtml/IMG10475sm.html

Max Rockatansky:

--- Quote from: NE2 on August 14, 2021, 10:50:29 PM ---
--- Quote from: Max Rockatansky on August 14, 2021, 07:53:00 PM ---
--- Quote from: Evan_Th on August 14, 2021, 02:58:07 PM ---
--- Quote from: NE2 on August 14, 2021, 02:54:29 PM ---Not in the U.S., but maybe it would be an issue for a Gibraltar bridge.

--- End quote ---

The San Andreas Fault is already causing minor damage to California roads.

--- End quote ---

There is a bridge in Parkfield which has a noticeable bend in from the San Andreas Fault moving.

--- End quote ---

https://www.schweich.com/imagehtml/IMG10475sm.html

--- End quote ---

A couple of mine from over the last half decade for comparison.

https://flic.kr/p/S4ptrk

https://flic.kr/p/2iBRaKp

jp the roadgeek:

--- Quote from: Mike2357 on August 14, 2021, 01:19:31 PM ---Given that the continents are shifting an inch or two every year, could this ever end up straining the structural supports until they collapse? If for example, Long Island started drifting east away from Manhattan, would the Brooklyn Bridge ever snap?

--- End quote ---
Long Island was formed as the result of a glacier, which is totally independent of plate tectonics.  Id imagine a few roads in Iceland might have issues. 

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