Super-Bridges Suspended Over Carbon Nanotube Cables
  In this paper the new concept of super-bridges, i.e. kilometre-long bridges suspended over carbon nanotube cables, is introduced. The analysis shows that the use of realistic (thus defective) carbon nanotube bundles as suspension cables can enlarge the current limit main span by a factor of 3. 
Alberto Carpinteri, Nicola M. Pugno