A steel-reinforced covered walkway is being installed at the State Capitol to protect visitors from getting plunked in the head by mortar chunks falling off the 86-year-old building.

The state doesn’t have the $40 million to $60 million necessary to fix the disintegrating mortar and fixtures that hold about 8,500 limestone panels, each weighing more than a ton, to the steel skeleton of the 34-story building. So, the plan is to erect what officially is called a “temporary protective structure” that will shelter visitors from falling building bits.