Walsh served as the prime contractor of the $175 million reconstruction of a 6-mile stretch of I-70 in Indianapolis. This heavily congested section of the roadway, on which approximately 180,000 cars travel each day, was constructed in the early 1970s and has never been rebuilt. As a result, the pavement and bridge decks were deteriorating. Another problem was that motorists could not see around its dangerous curves, so the roadway had to be built to meet federal standards. Shoulders were widened to 14 feet and vertical clearances were widened and raised. This is one of the most aggressive construction projects in INDOT’s history.