Image from Weblicist of Manhattan
RIOC President Steve Shane writes in his 3/21/09 Main Street WIRE column in regard to the:

…Renwick Ruin: Work continues with a completion date projected for early spring. Final steel installation to take place early in April.

But in the meantime some people cannot resist the urge to trespass (explore?) inside the Renwick Ruins which can result in injury to themselves or others. According to the 3/20 Roosevelt Island 24 Hour Incident Report:

Aided- Two males injured, fell threw floor or Ruins, transported to hospital.

Trespass- Four male subjects arrested for trespass in the Ruins. Two officers injured while apprehending subjects.

Roosevelt Island Public Safety Director Keith Guerra provides additional information:

The two people who fell through the floor at the Ruins and were hurt were Public Safety Officers who were pursuing the fleeing subjects, who do not reside on Roosevelt Island.

Here’s a brief look inside the Renwick Ruins from 2006. 2006 You Tube Video inside Renwick Ruins A more detailed You Tube visit inside the Renwick Ruin was here but has been removed.