10-26-2012, 05:18 PM
mrlynn wrote:
[quote=freeradical]
They could you know, raise the bridge a little. There has to be another way around the bridge, so why not shut that road down for awhile and get the job done?
Probably easier to lower the road than to raise the bridge. Hard to re-grade the railroad tracks.
/Mr Lynn
From the FAQ: http://11foot8.com/faq.html
Can't the road be lowered?
That would be prohibitively expensive because a sewer main runs just a few feet below the road bed. That sewer main also dates back about a hundred years and, again, at the time there were no real standards for minimum clearance for railroad underpasses.
Also found this interesting...
Could they install a low-clearance bar?
A low clearance bar is a bar suspended by chains ahead of the bridge. Overheight vehicles hit that bar first and the noise alerts the driver to to the problem. I understand that this approach has been successful in other places, but it's not practical here. There are many overheight trucks that have to be able to drive right up to the bridge and turn onto Peabody St. in order to deliver supplies to several restaurants. Making Peabody St inaccessible from Gregson St would make the restaurant owners and the delivery drivers very unhappy.
I guess the Sign on a Chain Pre- Warning thing is impractical because of that Street right before the Bridge has a lot of right turn truck traffic.