In construction, it’s called a two-crane pick. Don’t let the simple name fool you. The complex maneuver requires precise execution to minimize risk and maximize safety.
As performed by workers assembling the new Santiago Calatrava arches near downtown Dallas, it’s an intricate industrial ballet, a slow-motion dance of steel using wire rope slings, shackles, spreader beams and lifting lugs, either welded on or bolted on.
Working in unison, two cranes lift and swing long arch segments into place. Some pieces weigh 100,000 pounds and more. Determining the exact center of gravity is critical.
“It’s not a job for everybody,” said Jeff Keller, a crane operator on the project.
Trinity River. Its probably about 50-100 ft wide normally, but all bridges over it span the flood plain which can fill from levee to levee during heavy rains. It rained so much in May that it was filled from levee to levee for over a month.
It looks like this will be a beautiful bridge, but what purpose does it really serve? It looks like it crosses a drainage canal and there are normal piered bridges crossing the whole gap, so is it purely cosmetic in purpose?
It looks like this will be a beautiful bridge, but what purpose does it really serve? It looks like it crosses a drainage canal and there are normal piered bridges crossing the whole gap, so is it purely cosmetic in purpose?
Just drove by this bridge, wow is it striking. It really will have an incredible impact on the skyline when it's done. It destroys its sister bridge by a landslide.
It looks like this will be a beautiful bridge, but what purpose does it really serve? It looks like it crosses a drainage canal and there are normal piered bridges crossing the whole gap, so is it purely cosmetic in purpose?
Prev
DALLAS | Margaret McDermott Bridge | ~328' FT
.jpg)
Linear Mode
