The MBTA's Fiscal and Management Control Board (FMCB) voted Monday to pay a Boston-based construction firm $16.97 million to build a new Fairmount Line station in Mattapan. The Blue Hill Avenue station — slated to open in 2019— will be built by workers hired by McCourt Construction Company, which was the low-bidder among seven companies that submitted bids to win the MBTA contract.

McCourt is one of the region’s leading public infrastructure contractors. The firm recently supervised the re-construction of Dudley Station in Roxbury and a highway widening job on Rte. 128 in Canton, Dedham and Westwood.

The Blue Hill Avenue station, when it opens, will be the ninth station for the Fairmount Commuter Rail Line. It will open up a brand new opportunity for commuters, who will be able to travel from Mattapan to South Station in roughly 20 minutes.

“The station design includes one center-island platform between Blue Hill Avenue and Cummins Highway located below the street level measuring approximately 768 feet as well as two covered, fully accessible pedestrian ramps from both Cummins Highway and Blue Hill Avenue,” according to a statement issued by the state’s Transportation Dept. (MassDOT) on Monday.

“The station will also include canopies, warning strips, benches/windscreens, closed circuit television (CCTV) security cameras, new lighting, new messaging signs, train approach warning systems, and historical graphic panels.”

The state’s engineering estimate for the project’s cost was $19.3 million, according to a Reporter review of documents used to advise the FMCB decision on Monday. The next lowest bid for the job was $17.5 million from Barletta Heavy Division, Inc.