Bridges of Opportunity: Economic Lives of Illinois River Crossings
At first glance, a bridge is an object lesson in stillness. Steel ribs arch across water; concrete pylons sink into riverbeds; traffic hums above. It is easy to mistake such structures for permanence. Yet the life of a bridge is less about stasis than about flow—of labor, freight, capital, and time. When a crossing falters, the abstraction dissolves. Commutes lengthen. Delivery schedules fray. Local storefronts feel the tremor. The rebuilding of the I-74 Mississippi River Bridge , linking Moline and Bettendorf , offers a case study in the economic life of infrastructure. The original span, completed in the 1930s and expanded in the 1950s, had grown functionally obsolete: narrow lanes, limited shoulders, outdated interchanges. It was not merely aging; it was constraining. In the Quad Cities region—where Illinois and Iowa meet across the Mississippi—the river is not a border so much as a seam. Thousands of workers cross daily. Manufacturers ship components back and f...