Persistance

摘要

Out of tragedy-the 2007 collapse of the I-35W Bridge that took the lives of 13 people-came a renewed sense of purpose for the Minnesota Department of Transportation (MnDOT). The most current FHWA data indicates that just 9% of the state bridge inventory is either structurally deficient or functionally obsolete. This is the lowest in the U.S., and this statistic is doubly impressive because the states next closest (Arizona, 11%; Nevada, 13%) do not have nearly the total numbers of bridges that must be maintained in Minnesota, a state with more than 10,000 lakes and innumerable rivers, streams, ravines and creeks.