SHARECOMMENTMORE

St. Louis County, Mo (KSDK) -- A construction project for a training facility in north St. Louis County will employ 300 people.

St. Louis County Executive Charlie Dooley and St. Louis Mayor Francis Slay were on hand for the ground breaking ceremony for the Plumbers and Pipefitters Local 562 training campus.

The current facility will be expanded to include two new buildings of 97,000 square feet.

More than 4,500 people are members of the union.

HBD Construction will serve as general contractor on the $12- million facility.