The estimated ready mixed concrete produced in March 2019 is 27 million cubic yards, 1% lower than that in March 2018. The estimated production in the U.S. for 2019 through March is 71 million cubic yards, 2.4% higher than that during the same period in 2018.
Ready mixed concrete production is estimated from cement shipments reported by the U.S. Geological Survey. More detail, including production by state for the first quarter of 2019, is available here.
National Ready Mixed Concrete Association