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Vertical Clearence Requirements - Oops

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Vertical Clearence Requirements - Oops
Posted by dldance on Thursday, May 31, 2007 4:31 PM

Looks like Capital Metro overpass clears the UP but not their own spur.

http://www.statesman.com/news/content/news/stories/local/05/31/31capmetro.html

dd

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Posted by canazar on Monday, June 25, 2007 8:39 PM

Wow, can we get a

DOH!

Best Regards, Big John

Kiva Valley Railway- Freelanced road in central Arizona.  Visit the link to see my MR forum thread on The Building of the Whitton Branch on the  Kiva Valley Railway

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Posted by greyhounds on Monday, June 25, 2007 10:58 PM

Illinois Terminal had the same problem 60 years ago.

They made an ill advised attempt to stay in the interurban passenger business by buying three "steamliners", two and three car sets of "modern" electric interurban equipment that were to scoot around linking central Illinois cities with St. Louis.

They tried, one time, to take one of the new trains into the largest central Illinois city, Peoria. The top of the train hit the top of their Illinois River bridge.  It was a "vertical curve" thing where the train comming off the bridge into the Peoria terminal just wouldn't fit.

Service was cut back to E. Peoria.  The "streamliners" failed with the loss of several million dollars and the IT went freight only with diesel power. 

 

"By many measures, the U.S. freight rail system is the safest, most efficient and cost effective in the world." - Federal Railroad Administration, October, 2009. I'm just your average, everyday, uncivilized howling "anti-government" critic of mass government expenditures for "High Speed Rail" in the US. And I'm gosh darn proud of that.
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Posted by mudchicken on Tuesday, June 26, 2007 10:26 AM

Amateurs! Laugh [(-D] 

Light Rail people and their consultants are "toy train" people for the most part. A real railroad design guy/gal would've caught that blunder in a heartbeat.

Wonder if a civil engineer loses his license over this? (Practicing outside his area of expertise)

Expensive blunder.

Disapprove [V]Disapprove [V]Disapprove [V]

Mudchicken Nothing is worth taking the risk of losing a life over. Come home tonight in the same condition that you left home this morning in. Safety begins with ME.... cinscocom-west
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Posted by dldance on Friday, June 29, 2007 9:09 AM

you have to think in 3-D.  Engineers used to working in the plan view only can often get in trouble.

dd

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Posted by Anonymous on Sunday, July 1, 2007 2:40 AM
When this aired on the TV a few weeks ago on the news they said it was only 4 feet lower.  Then they said that they had contacted the UP and the UP said they knew nothing of it.  Capital Metro said the bridge would be 19 feet above the rail, and the UP said there intermodal trains are 21 feet.  So I guess someone from the news companies might want to get there facts straight.
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Posted by mudchicken on Tuesday, July 3, 2007 11:06 AM

All you would have had to do is look at Texas TAC Section 5.611....TxDOT (Who took over for the now mislabelled Texas RR Commission), even with Texas' liberal circa 1983 clearance rules, would have alarm bells going off at ANYTHING less than 22'-0"...

The news media is every bit as culpable as the dumber-than-a-rock lightrail engineers - Shame on both parties.

Mudchicken Nothing is worth taking the risk of losing a life over. Come home tonight in the same condition that you left home this morning in. Safety begins with ME.... cinscocom-west
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Posted by dldance on Tuesday, July 3, 2007 12:08 PM
 mudchicken wrote:

All you would have had to do is look at Texas TAC Section 5.611....TxDOT (Who took over for the now mislabelled Texas RR Commission), even with Texas' liberal circa 1983 clearance rules, would have alarm bells going off at ANYTHING less than 22'-0"...

The news media is every bit as culpable as the dumber-than-a-rock lightrail engineers - Shame on both parties.

I loved Cap Metros' initial response - "the tallest thing we own is 17 feet."  The track in question is an interchange track.  Owned equipment has nothing to do with it.

dd

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Posted by mudchicken on Tuesday, July 3, 2007 12:30 PM

Wonder what else the toy train people failed to think about/on before they lept? 

Scary... 

Mudchicken Nothing is worth taking the risk of losing a life over. Come home tonight in the same condition that you left home this morning in. Safety begins with ME.... cinscocom-west
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Posted by Anonymous on Tuesday, July 3, 2007 1:01 PM

I believe much was made of the light rail in Baltimore missing a few obsacles by only a few inches.

I should not laugh, I scraped a few objects myself... note I said scraped...

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Posted by Anonymous on Saturday, July 7, 2007 6:15 AM
I think it is going to be really funny when they finish the bridge and a UP double stack come thru.  Hopefully the UP crew will not be hurt.  Just imagine the pictures you can get and all the publicity for Austin.  If the bridge is only 19 feet from the ground (if I remeber right) and UP double stacks are 23 feet, what is the end effect going to be?
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Posted by Anonymous on Saturday, July 7, 2007 1:32 PM

4 feet difference? 23 vs 19? People die. Especially at highway speed.

Dont wish for this type of accident to happen to a double stack.

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Posted by Anonymous on Saturday, July 7, 2007 9:49 PM
Not really wishing at all.  But from what I have heard from the UP Austin has not talked to them except to say they were putting a bridge in.  They did not get measurements of the trains, they only used there locomotives to gage it. 
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Posted by Anonymous on Sunday, July 8, 2007 3:21 PM

 railroadjj wrote:
Not really wishing at all.  But from what I have heard from the UP Austin has not talked to them except to say they were putting a bridge in.  They did not get measurements of the trains, they only used there locomotives to gage it. 

If that's all they used and you know double stacks use that line in question why arent someone calling them up and saying "HEY! You have stacks on that line higher than a engine used to measure for that bridge!"

I dont know. But someone somewhere knows how high that bridge is going to be and it must be higher than anything that will travel under it...

If not? Oops.

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Posted by dldance on Monday, July 9, 2007 10:22 AM
 Safety Valve wrote:

 railroadjj wrote:
Not really wishing at all.  But from what I have heard from the UP Austin has not talked to them except to say they were putting a bridge in.  They did not get measurements of the trains, they only used there locomotives to gage it. 

If that's all they used and you know double stacks use that line in question why arent someone calling them up and saying "HEY! You have stacks on that line higher than a engine used to measure for that bridge!"

I dont know. But someone somewhere knows how high that bridge is going to be and it must be higher than anything that will travel under it...

If not? Oops.

the overpass has legal clearance over the UP main line.  That part was done correctly.  The problem is Cap Metro's own interchange track.  That spur connect the existing Austin & Northwest track (which crosses the UP at the McNeil diamond) with the UP.  The spur line has sub-legal clearance as the overpass was designed. 

dd

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