Airports, roads and rail services were disrupted due to a record-breaking snowstorm, which hit areas across the north-eastern US from North Carolina to New England on 19 December.
The worst blizzard in years crippled air, road and rail traffic and affected sales in the busiest shopping season in the Washington region alongside power outages.
The accumulation of heavy snow on the roads affected bus services in the region as roads remained slippery, making movement difficult.
It is the heaviest snowstorm ever to hit the US capital region, according to the National Weather Service.
Stretched 500 miles across a dozen states, the storm affected about a quarter of the US population.