Designs on greatness
With the two caissons for the main towers successfully lowered into place on the seabed in May this year, the consortium responsible for designing and building what will be the world’s longest suspension bridge is now focussed on progressing the substructure and tower construction in the months ahead. Helena Russell reports
Unusual conditions led to Leo Frigo Bridge deck displacement – final report
Investigations into the collapse of the I-43 Leo Frigo Memorial Bridge in Green Bay, Wisconsin, US have determined that highly unusual environmental conditions led to the severe corrosion of the steel piles in the foundation that supported Pier 22 and which caused the vertical displacement of the bridge deck.