The construction industry added 46,000 jobs in November 2015, dropping the unemployment rate to 6.2 percent, the Associated General Contractors of America said.

Firms added 42,000 jobs during the month — the biggest gain in almost two years, the group said.

"Construction firms appear to be having an easier time finding workers to hire after months of struggling with worker shortages," said Ken Simonson, the association's chief economist. "Between accelerating construction spending and new transportation investments coming online, construction employment should continue to grow at a steady rate for the next several months."

Nationally, an estimated 6.5 million people worked in the industry in November 2015.