Re: [CBQ] Burlington Railroad Bridge (more)

[Kenneth Martin <kmartin537@surewest.net>]

   I would say it is horizontal clearance not vertical, checking a 
drawing at LOC it says the swing span is 365' now so the lift span will 
be shorter but without the center pivot it will have more clearance.

The problem with the bridge is when it is open it is not aligned with 
the current. This was not a problem when steamboats were the main 
traffic on the river but now with 12-15 barges being pushed by a tugboat 
it is difficult to turn the barges and keep them aligned with the bridge 
because you are pushing across the current. The wider lift span will 
make it easier for the barges to go through the bridge.

For the drawing of the bridge go to:
http://memory.loc.gov/ammem/collections/habs_haer/
search collection for "Nebraska City Bridge", click on Nebraska City 
Bridge, click on drawings.

Ken Martin
former Burlington resident

Cy Svobodny wrote:

>Why do they need 300 feet of clearence!     River barges are not that tall or 
>the towboats that push them.   If the 300' means wide they will not fit thru 
>the locks( the  American Queen bearly fits at 85' of beam).    
>  
>



------------------------------------

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/CBQ/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/CBQ/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:CBQ-digest@yahoogroups.com 
    mailto:CBQ-fullfeatured@yahoogroups.com

<*> To unsubscribe from this group, send an email to:
    CBQ-unsubscribe@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/