[masraum]

Originally Posted by TimT

If you like watching paint dry go for it... its a painfully slow operation jacking structures such as this. I have been involved with (and paid handsomely for) jacking/realigning some large structures..

Likely this bridge is being jacked to allow reconstruction of pier caps and bridge seats to meet current standards for seismic etc...

To my eyes that is not an old structure, but it looks odd the there is so little clearance between the bottom of the beam and pier caps...

The jacking procedure may be so slight s to "break the dust" between the bearing and bridge seat...

Its equally impressive as hell and yawn inspiring..

So you're saying those aren't like the current car jacks, 3 pumps to full lift? Yeah, on top of the fact that it's slow, if they say "we're starting at 9pm Thu night, they may have 4-6 hours of crap to do before they even start lifting. I imagine that each jack is monitored to ensure that all jacks are lifting in unison, etc.... I'll be heading through the area Fri afternoon, so I'll get to see what has changed after 16-18 hours.