Construction employment levels continued their recovery during the past year, new figures from the Associated General Contractors of America say.

Employment levels grew in 236 of 339 metro areas surveyed between September 2013 and September 2014, the association said, citing federal employment figures.

“It is good news that construction employment gains have spread to more than two-thirds of the nation’s metro areas,” said Ken Simonson, chief economist for the AGC. “But there is a growing risk that contractors in many of these regions will have trouble finding qualified workers to complete the rising volume of projects.”

Employment levels were flat in 50 metro areas and declined in 50, the AGC added.