Board Thread:Naruto Discussions/@comment-26773508-20150729045448/@comment-734582-20150729075032

I don't think we ever saw how big the bridge was. Regardless, once such a bridge is destroyed, it's much easier to deny them more bridges. Meanwhile, as a small ninja team is denying them the resources, the rest of the shinobi can fight a war of attrition. Even diverting more resources to getting a bridge up gives Konoha an advantage.