http://www.myfoxtwincities.com...Code=VSTY&pageId=3.2.1
Apparently when this bridge was built the original contractor pulled out because the core samples they were drawing wouldnt support the bridge the way they wanted it. The contractor was running into boulders and couldnt plant the piers into bedrock.
This is a pretty big development because it suggests the ground wasnt stable for the foundation of the bridge. It is also significant because they plan on rebuilding right over the same site. The current contractor doesnt know about these issues and MNDOT unsurprisignly cant find any documentation either. Though I expect the current contractor to do their own sampling and it should be interesting to see what they find.
My theory on what happened is the Feds plotted the highway system and when it came time to build the bridge they had no leeway on where it went. When these issues were brought up they simply buried it and hoped for the best. In other words, you typical govt working hard to protect people.
It isnt surprising the piers moved if the foundation wasnt solid. Hell it could be the entire reason why the whole thing came down.
Apparently when this bridge was built the original contractor pulled out because the core samples they were drawing wouldnt support the bridge the way they wanted it. The contractor was running into boulders and couldnt plant the piers into bedrock.
This is a pretty big development because it suggests the ground wasnt stable for the foundation of the bridge. It is also significant because they plan on rebuilding right over the same site. The current contractor doesnt know about these issues and MNDOT unsurprisignly cant find any documentation either. Though I expect the current contractor to do their own sampling and it should be interesting to see what they find.
My theory on what happened is the Feds plotted the highway system and when it came time to build the bridge they had no leeway on where it went. When these issues were brought up they simply buried it and hoped for the best. In other words, you typical govt working hard to protect people.
It isnt surprising the piers moved if the foundation wasnt solid. Hell it could be the entire reason why the whole thing came down.
