Railfan.net Home Railfan Photos ABPR Archives Staff Safari Photos Railfan Links

Railfan.net Forums Railfan.net Forums Railfan.net Forums
Welcome, Guest. Please Sign In or Register. Aug 18th, 2017, 8:02pm
Categories •  FastIndex •  LongIndex •  Help •  Search •  Members  •  Sign In •  Register


Portageville Bridge Update
   Railfan.net Web Forums
   Regionals and Short Lines
   WNY&P, LA&L & B&H
(Moderators: Matthew_L, railwatcher, pablo, bwparker1)
   Portageville Bridge Update
« No topic | Next topic »
Pages: 1 2  ReplyReply     EMail TopicEMail Topic   PrintPrint
   Author  Topic: Portageville Bridge Update  (Read 1148 times)
HwyHaulier
Historian
Posts: 3437
Re: Portageville Bridge Update
 
« Reply #20 on: Jul 18th, 2017, 1:42pm »
Quick-Jump   Reply w/Quote   Modify

Henry - Lodge Members - Et Al -
 
Which, in this instance, your writer respects the commonplace Employee Rule Book. It counseled, among other issues:  
Respect the third rail! Also, on the old PENN, a Rule that one should avoid contact with the catenary!
 
So it goes. Your writer seasoned enough with past sightings of the long gone, green ERIE passenger schedules traveling  
the NY Southern Tier...
 
..............  Vern  ................


Logged

Ticket Agent serving...Pacific Stage Lines...Washington State System...Mt. Hood Stages...Pickwick Stages...Transcontinental & Western Air Lines.... Admitted Gold Bug..... Observant Orthodox Mossback..... H.M.R.A.O. Curmudgeons......
roc
Historian
Posts: 1258
Re: Portageville Bridge Update
 
« Reply #21 on: Jul 20th, 2017, 5:42am »
Quick-Jump   Reply w/Quote   Modify

Actually, in this case, the third rail when the rule breaker in the first instance stepped on it wasn't energized. In the name of rail heritage preservation and quoting an actual founding father (ie double quotes), rather than incorrectly single quoting, the person in the second instance sent some current…
 
Snore.


Logged

A smokey Alco and a good camera, nevermind the weather...
thebigham
Historian
Posts: 1268
Re: Portageville Bridge Update
  635817144512761264-PortagevilleBridge.jpg - 75515 Bytes
« Reply #22 on: Jul 24th, 2017, 2:24pm »
Quick-Jump   Reply w/Quote   Modify

The old bridge is being torn down. Too much liability for the park and NYS.
 
This will be the new view.


http://Forums.Railfan.net/Images/WNYP/635817144512761264-PortagevilleBridge.jpg
Click Image to Resize

Logged
roc
Historian
Posts: 1258
Re: Portageville Bridge Update
 
« Reply #23 on: Jul 25th, 2017, 11:08pm »
Quick-Jump   Reply w/Quote   Modify

Will change the view for the better.

Logged

A smokey Alco and a good camera, nevermind the weather...
George_Harris
Historian
Posts: 3819
Re: Portageville Bridge Update
 
« Reply #24 on: Jul 31st, 2017, 9:45pm »
Quick-Jump   Reply w/Quote   Modify

on Jul 13th, 2017, 7:45pm, Matthew_L wrote:       (Click here for original message)
IIRC, NS has stated the speed limit for the new bridge will be 30 mph. While it's not 50 mph (the norm for the rest of the line), the 30 mph seed limit will be a reat improvement over the current 10 mph speed limit.

Found a track chart for this line at the following:
http://www.multimodalways.org/docs/railroads/companies/CR/CR%20Track%20Charts/CR%20Albany%20Track%20Chart%201996.pdf
The specific location is page 142 of the file, page number shown is 102, mileposts 360 to 370, the current speed limit for the line is 50 mph where not otherwise restricted and 30 mph each side of the bridge and 10 mph on the bridge itself.  Curves adjacent to the bridge are shown as 2 degrees 15 minutes east of the bridge and 7 degrees west of the bridge.  It appears that the 30 mph limit is through these curves.  
 
For information, the balancing superelevation at 30 mph would be:
(This is using the normal formuly, SE = 0.0007 * degree of curve * speed^2)
For 2d15m, balancing SE= 1.42 inches
For 7 degree, balancing SE = 4.41 inches
Converting degrees of curve to radius:  
2d15m = 2546.64 feet
7deg = 819.02 feet


Logged
Henry
Historian
Posts: 6108
Re: Portageville Bridge Update
  PortagevilleViaduct_CR_TrackChart_1996.jpg - 225710 Bytes
« Reply #25 on: Jul 31st, 2017, 11:59pm »
Quick-Jump   Reply w/Quote   Modify

Here is the above referenced track chart page from 1996. The speeds for the bridge are near the right side of the long rectangle. I actually downloaded a whole pile of CR track charts back in 2009.



Image exceeds display size of 900 pixels wide. (225710 bytes, 1576x1338 pixels)


Click Here to View Image PortagevilleViaduct_CR_TrackChart_1996.jpg - 225710 Bytes


Logged
centercab
Historian
Posts: 276
Re: Portageville Bridge Update
 
« Reply #26 on: Aug 9th, 2017, 9:48pm »
Quick-Jump   Reply w/Quote   Modify

on Jul 25th, 2017, 11:08pm, roc wrote:       (Click here for original message)
Will change the view for the better.

Agree. Old bridge would become "clutter" as per the bighams projected view of new structure. Progress in this case is good, new  bridge is elegant


Logged

Love that Solyndra!
roc
Historian
Posts: 1258
Re: Portageville Bridge Update
 
« Reply #27 on: Aug 16th, 2017, 2:53am »
Quick-Jump   Reply w/Quote   Modify

on Aug 9th, 2017, 9:48pm, centercab wrote:       (Click here for original message)

Agree. Old bridge would become "clutter" as per the bighams projected view of new structure. Progress in this case is good, new  bridge is elegant

 
The Kinzua Viaduct tragedy also comes to mind. That said, perhaps a truncated section of the bridge. That, however, would take major bucks that would be better spent on road maintenance (no new roads please) and transit.


Logged

A smokey Alco and a good camera, nevermind the weather...
centercab
Historian
Posts: 276
Re: Portageville Bridge Update
 
« Reply #28 on: Aug 16th, 2017, 7:47pm »
Quick-Jump   Reply w/Quote   Modify

Major bucks aside, I remember the complete Kinzua  Bridge, walked it several times. Historically even the remains have are significant but honestly it's only a shadow of it's former self.

Logged

Love that Solyndra!
roc
Historian
Posts: 1258
Re: Portageville Bridge Update
 
« Reply #29 on: Aug 17th, 2017, 3:53pm »
Quick-Jump   Reply w/Quote   Modify

on Aug 16th, 2017, 7:47pm, centercab wrote:       (Click here for original message)
Major bucks aside, I remember the complete Kinzua  Bridge, walked it several times. Historically even the remains have are significant but honestly it's only a shadow of it's former self.

 
Walked it with the family back before the K&K and then rode over it with Grandpa from Marienville and back. From Kane would have been fine  


Logged

A smokey Alco and a good camera, nevermind the weather...
Pages: 1 2  ReplyReply     EMail TopicEMail Topic   PrintPrint

« No topic | Next topic »