The Calgary Flames acquired defenceman Dennis Wideman from the Washington Capitals on Wednesday and signed him to a five-year contract.

Wideman's new deal is worth an average of $5.25 US million annually.

Calgary obtained Wideman for defenceman Jordan Henry and a 2013 fifth-round draft pick.

Wideman has 67 goals and 184 points in 535 career NHL games with St. Louis, Boston, Florida and Washington. The six-foot, 200-pound native of Kitchener, Ont. had 11 goals and 35 assists in 82 games with the Capitals last year.

The Flames also announced they've re-signed forward Blake Comeau to a one-year, $1.25-million deal. Comeau had five goals and 10 assists in 58 games with Calgary after being claimed off waivers from the New York Islanders in November.

Comeau wasn't given a qualifying offer on Monday as a restricted free agent, reflective of the fact that the Flames weren't prepared to pay him in the neighbourhood of the $2.5 million he earned the past season.