According to an Economic Policy Institute report released on August 11, 2015 the U.S. is continuing to lose manufacturing jobs due to trade deficits and currency manipulation, not to productivity gains due to technological advances.
Concludes report author Robert E. Scott:
The United States also has a major infrastructure shortfall. The American Society of Civil Engineers (2014) has estimated that the United States needs to invest $3.6 trillion in rebuilding U.S. infrastructure by 2020. Bivens (2014) has estimated that a debt-financed investment of $250 billion per year could create up to 3 million new jobs, and that these jobs could be sustained for over seven years. Construction and manufacturing are two of the most prominent input supplier sectors in infrastructure investment packages. As a first step, Congress needs to approve a multi-year extension of federal transportation funding, which is currently being held up in the House of Representatives (Laing 2015).