The Manhattan Bridge has been plagued with problems since it was constructed 100 years ago... and the ol' gal still isn't perfect after all this time. The NY Times reports that a $150 million project will soon be underway to replace all of the vertical suspension cables on the bridge, causing disruptions in weekend subway service (B, D, N and Q lines), closing the bikeway and even shutting down some traffic lanes... for the next four years. (The cyclists will have to share a pedestrian walkway.)

This repair work is the final phase in a three-decade rebuilding project, and will begin early next year and end in 2013. Once the work is done, the chief engineer in the project tells the site, "virtually every part of the bridge will have been replaced, except its towers, the main cables and the trusses that support them."