During many years, much of the snow equipment at the region’s three main airports sits idle. But this winter, the melters, blasters, movers, plows and scoopers all have been getting a major workout.

Here’s some fresh video provided by Dulles International Airport showing its equipment in action, clearing snow from Monday’s St. Patrick’s Day storm, which dropped roughly 10 inches of snow at the airport and more than seven at Reagan National Airport.

National’s runways were closed down for several hours beginning around 4 a.m. — but reopened at around 9 a.m.

At Baltimore Washington International Thurgood Marshall Airport — the runways remained open, but many flights were canceled or delayed. Snow crews began operations Sunday night, spokesman Jonathan Dean said.

This year’s snow removal budget for Dulles, excluding personnel costs, is $15.3 million, according to the Metropolitan Washington Airports Authority; for National, it’s $2.5 million. Of course given the number of storms this season, it’s possible those budget figures could be exceeded.

MWAA officials may get a more detailed report of the impact of the storms on airport operations at their board meeting Wednesday.