Construction spending reached a record level of $1.309 trillion in May as monthly increases in residential and public investment outweighed a decline in private nonresidential outlays, according to an analysis of new government data by the Associated General Contractors of America. Association officials warned, however, that continued labor shortages and rising materials costs threaten future growth in demand. 
Construction spending in May increased 0.4 percent from the rate in April and 4.5 percent from the May 2017 rate to $1.309 trillion at a seasonally adjusted annual rate. For the month, public construction spending rose 0.7 percent, private residential spending increased 0.8 percent, and private nonresidential construction spending slipped 0.3 percent. On a year-over-year basis, public construction spending climbed 4.7 percent, private residential spending grew 6.6 percent, and private nonresidential construction spending edged up 1.8 percent.
Among public infrastructure spending categories, highway and street construction increased 5.8 percent from May 2017 to May 2018; transportation construction (airports, transit, public rail and ports) rose 9.1 percent; sewage and waste disposal construction climbed 5.6 percent; water supply, 9.4 percent; and conservation and development, 8.5 percent. The largest public building construction type—educational construction—inched up 0.4 percent over the year.
Spending on single-family homebuilding increased 8.2 percent from May 2017 to May 2018, while multifamily construction spending climbed 4.2 percent over that period. AGCA added that private nonresidential spending showed a mixed pattern. The largest category—power construction spending (including oil and gas field and pipeline structures)—dipped 0.7 percent over 12 months, but the next largest segment—commercial construction (comprising retail, warehouse and farm buildings) had a gain of 2.0 percent. Manufacturing construction spending fell by 11.0 percent year-over-year, while private office construction spending jumped by 9.7 percent.