Yes, but I see nothing unnatural in bending the idiom that far. There are a few in COCA:
At the crossroad, I hitch a ride to Barung Bird Park. Quite high priced, the
population or economic strength would indicate. Turkey’s geographic position – at the crossroad of Europe, Central Asia and the Middle East – makes it a pivotal state
Located to the south of the former Soviet Union, and at the crossroad of Europe and Asia, Turkey enjoyed a role as a key NATO ally throughout
Situated at the crossroad between East and West, Turkey and Israel think of themselves as possessing a partially
nostalgic intimacy, mixed with suspicion, of Arab cultures. Situated at the crossroad between East and West, Turkey and Israel think of themselves as possessing a partially
routes were icy and snowpacked but passable. The Rustic Tavern, at the crossroad of two snow routes, West 29th Avenue and Sheridan Boulevard, found itself in
States? Japan is being driven by necessity. Japan is sitting right at the crossroad of that necessity. It will be forced to innovate if it wants to survive
to search for Gomer. Then marry her. She is expecting you at the crossroad. " Overcome by an awesome fear I seized onto my battered thoughts and
Down at the crossroad The Great Flood of 1993 was a breakthrough – literally: The Mississippi River
talks seem to weld an idyllic link in which the two friends stand at the crossroad of an exalted present and a brighter future. Youth triumphs, one would venture
one of them, of course, is a democratic regime. At the crossroad of history, when the old system is gone and a new regime ha
In my opinion the use of the singular is very often used in a figurative sense similar to the expression ‘turning point’. The plural is used often in a literal sense such as you would find with roads crossing each other.
So now the question is how many roads there are at the crossroads? 4 or 2? Intersections and crossroads! Traffic matters! I’m getting mad! Sorry. I’m not good at math and subjects requiring imagination!
Just draw an X on a piece of paper: that’s 2 roads crossing, making acrossroads. One of those 2 roads is a crossroad.
CROSSROAD noun
1.a road that crosses another road, or one that runs transversely to main roads.
3.Often, crossroads. ( used with a singular or plural verb )
a.the place where roads intersect.
The singular form that we were looking at may be a slight misuse of the word, but it is common.