All Employees: Construction: Heavy and Civil Engineering Construction in Montana was 5.10000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Construction: Heavy and Civil Engineering Construction in Montana reached a record high of 7.00000 in August of 2019 and a record low of 1.70000 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Construction: Heavy and Civil Engineering Construction in Montana - last updated from the United States Federal Reserve on March of 2024.