February 21, 2006: Sparky and the lowering of the Pearman main span
I shall pull together more after the lowering tomorrow, but earlier today -
The worksite, looking east toward Mt. Pleasant. The Grace Bridge to the
left with the beginning structures to hold the Mammoet beams, the Pearman
in the middle - ready to go and floor girders of our new Ravenel Bridge
to the right.

A year ago, I was riding my bicycle over the Pearman Bridge -
early early on Sunday mornings to capture the closing of the main span
gap.
Almost to the day (actually Feb 23, 2005) - I was learning from the
Ravenel Bridge ironworkers (Philip Cotter)
about the Last Dinosaur Standing. Here the mainspan has been completed
and the iron workers are unbuilding the last crane used to lift and place
floor girders and concrete floor panels.

A good view of the Pearman main span with both hydraulic jacking units.
The hoist cables are held by a tag line - but it appears as if Grace
were holding the east lowering cables

The west hydraulic jack assembly. Again, the 2-D illusion - as if
Grace were holding the lowering cables.

Starting the day - connecting a tie down cable to the safety harness.

More preparations - here, cutting the beam that links the lower and upper
pins connecting the cantilever and main span trusses

And cutting more of the truss structure near the lower Mammoet beam

Looking up at the cable array for lowering the Pearman main span

and what a way to end the day

with Sparky

I am behind and here is Sparky's sunset from today - more later
My thanks, big time, to Sparky, for catching the past 2 days. Tomorrow we shall
do our best to capture the dynamics of lowering the Pearman main span. Stay
tuned.