Good News.
The Lighthouse Park footbridges washed away by Hurricane Sandy in October 2012 have been replaced. Roosevelt Island resident C. Grant sent in this picture yesterday
Image From C. Grant and reports:
I forgot how nice the walk around the point is for peaceful thinking
The yellow tape is blocking only the red wood area where they are still fixing. The bridges are open and one can walk around
There are still some finishing touches that need to be made in the area but you can finally walk to the northern tip of Roosevelt Island’s Lighthouse Park. This is what Lighthouse Park looked like under water during Hurricane Sandy 
Roosevelt Island Lighthouse Park Under Water From Huricane Sandy Via Kate Williams Tweet and the washed away footbridge space 
a few weeks ago. Happy to have the Lighthouse area open to the public again.