Nonresidential construction spending expanded 3.2 percent on a monthly basis in April and totaled $646.7 billion on a seasonally adjusted, annualized basis, according to the Associated Builders and Contractors’ analysis of Census Bureau data. Spending in the nonresidential sector is up by 8.8 percent over the past year.

The Census Bureau also revised March’s nonresidential spending figure from $611.8 billion to $626.7 billion, and February’s total from $613.1 billion to $618.4 billion.

“The upbeat assessment of nonresidential construction in April has been rendered more meaningful by the upward revisions for prior months,” says ABC chief economist Anirban Basu. “The presumption had been that nonresidential spending construction data would improve as we approached the summer, and the outlook ahead remains solid. There is a considerable amount of financial capital available to move construction projects forward and low interest rates certainly help. While the availability of substantial financial capital may eventually produce over-built private construction markets, for now the expectation is that progress will continue.”

Office construction spending expanded 3.7 percent in April and is up 8.8 percent compared to the same time one year ago, while lodging construction spending was up 5.5 percent on a monthly basis and 17.6 percent on a year-over-year basis.

Spending in the healthcare sector expanded 2.1 percent for the month and is up 2.6 percent compared to the same time last year. Commercial construction, meanwhile, saw a 2.7 percent increase in spending in April and is up 17.5 percent year-over-year.

Amusement and recreation-related construction spending improved 2.5 percent on a monthly basis and is up 23.3 percent from the same time last year. Education-related construction gained 3.2 percent for the month and is up 0.4 percent in spending on a year-over-year basis.