Bolting helps prevent trees from splitting apart. The early snow storm was especially hard on trees with weak limbs and cracked trunks. The heavy snow was just too much and many trees failed. Rob Poley, Giroud Arborist, shows before and after pictures of an Ash tree with a cracked trunk in Horsham PA. In the before picture, the crack is very wide making the tree at high risk for failure. The after picture shows the two bolts on the sides of the tree and how they firmly close the crack and pull the trunk together. It’s important to have structural problems evaluated and repaired before more storms strike.