On Wisconsin indeed. A 5-year, $1.7 billion project will revamp the Badger State's busiest interchange, courtesy of 1.5 million cubic yards of concrete. The The Zoo Interchange in Milwaukee supports 350,000 vehicles a day. After 50 years of service, it was experiencing congestion, age and three accidents a day. The project was designed to improve safety and efficiency throughout the area. At the same time, utilities and railroad lines along the corridor will be upgraded. Even butterflies will be happier. Butterflies?
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