alt Hacker Newsthis website is a marvel, the fact that there are over 100 year old concrete ships still floating makes me wonder if there are concrete or nonmetallic ships still being constructed today for secondary purposes like carrying garbage or as bridges
this website is a marvel, the fact that there are over 100 year old concrete ships still floating makes me wonder if there are concrete or nonmetallic ships still being constructed today for secondary purposes like carrying garbage or as bridges
The 520 and I-90 bridges in Seattle are built with floating concrete pontoons.