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11foot 8inch bridge going up

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Posted by Leo_Ames on Tuesday, September 15, 2020 7:52 PM

Why didn't they raise it in one shot? Or did some bigwig decide it was still too low even after being raised just months ago?

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Posted by matthewsaggie on Tuesday, September 15, 2020 6:30 PM

Road sits atop a very large storm drainage culvert and cant be lowered. What it is now is what it will remain.

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Posted by BaltACD on Tuesday, September 15, 2020 5:51 PM

tree68
Undercutting the road will  cascade out to other streets in the area.

It might be possible to jack the bridge - it depends on the profile of the tracks on either side.  If the bridge is a low spot, then some stone will be all that's needed after the bridge is raised.

Otherwise, they may find the same problem that's keeping the low-clearance bridge in Syracuse/Liverpool, NY from being raised - it would make the grade coming off the wye just too much.  The road there can't be lowered - it's built on an old canal and is right next to Onondaga Lake.  Flooding would replace the low bridge as the hazard.

The bridge could, relatively easily, be jacked up to clear 13'6" trucks - raising the adjoining rail lines so as not to create a helper district and/or train handling disaster is the problem.

I don't know if the road is subject to flooding at its present elevation

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Posted by Overmod on Tuesday, September 15, 2020 4:03 PM

Here's the unembedded 'raising' video:

https://m.youtube.com/watch?v=YPt4ijPFzc8#

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Posted by matthewsaggie on Tuesday, September 15, 2020 2:51 PM

This whole article from the OP is almost a year old. It was raised in 2019 8", but its not being raised again. 

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Posted by tree68 on Tuesday, September 15, 2020 2:36 PM

Undercutting the road will  cascade out to other streets in the area.

It might be possible to jack the bridge - it depends on the profile of the tracks on either side.  If the bridge is a low spot, then some stone will be all that's needed after the bridge is raised.

Otherwise, they may find the same problem that's keeping the low-clearance bridge in Syracuse/Liverpool, NY from being raised - it would make the grade coming off the wye just too much.  The road there can't be lowered - it's built on an old canal and is right next to Onondaga Lake.  Flooding would replace the low bridge as the hazard.

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Posted by rdamon on Tuesday, September 15, 2020 2:32 PM

NS Raised the bridge 8" on 10/29/2019 ...  so far 4 trucks have hit the raised span.

http://11foot8.com/raising-11foot8/

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Posted by BaltACD on Tuesday, September 15, 2020 1:30 PM

Is the bridge actually going to be raised 8 inches or is the roadway going to be 'undercut' 8 inches.

I can't see NS being able to raise the bridges and its approaches 8 inches for only $500K.  I can, however, see the roadway being lowered 8 inches for that amount of money.

I last stayed at a Holiday Inn a decade ago.

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11foot 8inch bridge going up
Posted by ORNHOO on Tuesday, September 15, 2020 11:59 AM

All the way up to 12 feet four inches: https://jalopnik.com/north-carolinas-infamous-low-ass-bridge-will-soon-be-ra-1839237006

Trucks, however, are still allowed to be 13 feet 6 inches high

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