The contractor estimates that the protection system should be in place by the end of May, but since no one has ever built one of these things before, that is the best guess. Work started last week and seems to be progressing as planned.
A scaffold and truss system provides the skeleton to hold numerous layers of protective material. Horizontally over the fossils, a fire blanket protects the fossils and protective covering in the unlikely event of fire. Two layers of plywood and a layer of steel, in conjunction with the scaffold and truss, provides a sturdy barrier against heavy objects dropping from above. A two-inch layer of foam can help absorb the energy of objects falling from above. A layer of plastic provides a moisture barrier between the construction area and the fossils. Finally, the bottom most layer of rope/mesh is designed to catch any residual objects that might happen to get through the layers above. Quite an elaborate system filled with some redundancy to provide maximum protection to the fossil wall. Vertically, a wall will be built to enclose the fossils in their own protective chamber throughout the construction.
The dinosaurs can rest in peace with their own alarm system and other security measures in place.