Straightfowardly, no, it couldn't be. Bridge construction on this scale isn't just a matter of throwing money or people at the problem. Like the old saw that says you can't get nine women to make a baby in one month, a 1200' span takes time. Foundations have to be built below water, piers have to be formed and given time to achieve design concrete strength, and each bridge segment has to be completed in sequence, including formwork, rebar, concrete pouring and setting, etc., in a careful sequence that keeps the cantilevered sections of the bridge in balance.
The US is no paragon of speedy infrastructure projects, but even in China cable-stayed concrete bridges are years-long projects. The Changtai Yangtze River Bridge, for instance, has spans similar to the Francis Scott Key bridge and it took fully 6 years from start of construction to completion, never mind design time.