Managing the nation's infrastructure risk sounds like a subject for a textbook. As an author of textbooks, I think this is probably what ought to be started. However, the connection between managing risk and claims adjusting is so close that at least a few hints can be covered in a short series, of which this is the first. 

Risk refers to both direct and indirect loss (and the potential for loss). It is managed in two ways: First, there must be an established way to pay for both the prevention of loss and for any damages caused by loss. Second, and perhaps more importantly, the risk of loss must be controlled, either before loss occurs or after it has occurred. It is in the payment of any damages caused by loss, and the control of that damage, where the claims adjuster plays a crucial role. 

There are very few infrastructure-related losses that are earth-shaking: the Chernobyl (Ukrainian/USSR) and Daiiachi Fukushima (Japan) nuclear power plant disasters in 1986 and 2011, respectively; the Bhopal, India, insecticide plant poisonous gas leak; the Exxon Valdez and BP oil spills. Such events are rare, and while adjusters were eventually involved in those, it was not on behalf of your everyday "good hands" neighbor insurance company.