If there is enough commercial
disruption and it is made clear enough in DC then they will get fixed within a year. An example of similar would be the rebuilding of the I35W bridge in Minneapolis which took just over a year from the time the bridge collapsed and a day under a year from the time the contract
was announced. How long it takes to refill the reservoirs is another question.
Following catastrophes rebuilding can be remarkably rapid if a sense of urgency is developed by decision makers.