Holy Crap! Major Bridge Collapse
Posted: Thu Aug 02, 2007 12:59 am
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I had nothing to do with this, and would never consort with Moldy Voldy's followers.Menolly wrote:Are y'all sure it's not the work of You-Know-Who and the Death Eaters?
--ANothing Wrong With Bridge
Minneapolis - The bridge on highway I-35 that collapsed on Wednesday over the Mississippi River was built 40 years ago and was under repair for minor problems, Minnesota state authorities said.
Constructed in 1967, the mainly steel structure stretched 581 metres across the river in Minneapolis and rested on 14 spans.
The section of the bridge that straddled the Mississippi measured 300 metres and consisted of three continuous spans, with the central part 139 metres long, and two others at 80 metres each.
In accordance with government regulations in force in 1961, the structure was designed using a cantilever method, with decks resting on triangular metal girders supported by arches between the spans.
Minnesota Governor Tim Pawlenty said that the bridge was last inspected in 2006 and no significant structural problems were found.
The governor said engineers found the bridge deck would need attention in the future and that minor repairs were under way.
"They notified us from an engineering standpoint the deck may have to be rehabilitated or replaced in 2020 or beyond," he said.
There was work taking place on the bridge "relating to concrete repair and rehabilitation and replacement, guard rail replacement, righting replacement and work on the joints", he said.
Corrosion, poor welding
But a 2001 report by the state's Department of Transportation pointed to problems with corrosion in the bridge's steel beams and "poor welding" in trusses.
The report also said that the design of the bridge, in which only two main trusses support the load of eight lanes of traffic, was "theoretically" at risk of collapse in the case of a single crack in a truss section.
The construction method used for the bridge was re-evaluated in the 1970s and design regulations have since become stricter, according to the report.
For Minnesota's harsh winters, the bridge is equipped with an automatic system that sprays antifreeze on car lanes.
Interstate 35 is one of many national highways that criss-cross the United States. The north-south route stretches from the Canadian border to Laredo, Texas, at the border with Mexico, passing through Minneapolis, Kansas City, Oklahoma City and Dallas.
The number has been downgraded to 4 I think, not dozens.Malik23 wrote: That's really sad. Dozens of families drowned in their own cars with their children buckled in "safely" in the back seat.
Four confirmed but they don't know what they will find in the cars that sunk.High Lord Tolkien wrote:The number has been downgraded to 4 I think, not dozens.Malik23 wrote: That's really sad. Dozens of families drowned in their own cars with their children buckled in "safely" in the back seat.
A-freaking-men.Malik23 wrote:Anyway, watching this unfold, I was thinking, "Well, at least this can't be blamed on Bush." Looks like I was wrong. That's really sad. Dozens of families drowned in their own cars with their children buckled in "safely" in the back seat. Dying while hearing your children scream for their lives must be one f*cked up way to go. Let's not cheapen their deaths by making this political. Please.
TheEsmer wrote:Being "economical" these days is resulting in low-bid cheap crap with no maintenance thats endangering all our lives....Boston, anyone?)
It sounds trite but.... sometimes unexpected sh#t happens no matter you do.Esmer wrote:This collapse is a HUGE failure on the parts of city govt inspectors/engineers there. That is seriously whacked, man.
That's amazing.Avatar wrote:Nothing Wrong With Bridge
... Minnesota Governor Tim Pawlenty said that the bridge was last inspected in 2006 and no significant structural problems were found. ...
Bridge maintenance is suffering everywhere. For lack of federal highway funds.Minnesota bridge was 'structurally deficient'
The 40-year-old bridge that collapsed in Minnesota last night, causing the deaths of at least seven people, was graded "structurally deficient" two years ago but was not scheduled to be replaced until 2020. [link]
Why is it that it's the people who are to blame that always say that.Let's not cheapen their deaths by making this political. Please.