On May 18, 2001, the main education building was declared unsafe; renovation crews discovered that the concrete, intended to measure at 3,000 pounds per square inch, instead measured at 1,400 to 2,000 pounds per square inch. The district did not permit students to retrieve their belongings. The district tested the other schools built between 1956 and 1965 and did not discover structural problems. A new campus for Westbury was completed in the fall of 2004. Westbury collaborated (as have many other schools) with Brown University to set up a magnet program Coalition of Essential Schools.