The phrase "a significant stretch of" is correct and usable in written English.
It can be used to describe a considerable length or duration of something, often in a figurative sense.
Example: "The project required a significant stretch of time to complete, far longer than we initially anticipated."
Alternatives: "a considerable amount of" or "an extensive period of".
A significant stretch of this route is the only federally designated wildlife corridor in the United States.
It's dizzying, complex, and heavy with the sense that marks the entire album: that of being right at the start of a significant stretch of work.
Russian forces still control a significant stretch of the border, and both Moscow and its Ukrainian proxies have rejected Mr. Poroshenko's concessions as inadequate.
In contrast, almost any mealtime visit to any location of New York's Shake Shack involves a significant stretch of time -- 20 minutes isn't exceptional -- on a serpentine line.
By 1863, Vicksburg was the last major Confederate stronghold on the Mississippi River, controlling the transport of troops, supplies and arms along a significant stretch of the river.
The owner of several lots and the rights to a significant stretch of Salton Sea lakefront here, Ms. Palmer can see a future for this long-forgotten resort community.
It has been a year of injuries for the Sounders who had to cope without their two main strikers Obafemi Martins and Clint Dempsey and Cuban midfielder Osvaldo Alonso for a significant stretches of the campaign.
Closing the entirety of the southern US border for any significant stretch of time would be a task of absurd complexity, with devastating economic consequences for states like Texas and California.
"The Lunatic Fringe" had been out of action since December 2017 after undergoing triceps surgery, ending his impressive streak as WWE's "iron man," when he wrestled 1,054 matches between March 2012 and December 2017 without missing any significant stretch of time.
Peshmerga forces also secured an additional significant stretch of the Erbil-Mosul road.
We could not find any significant stretches of sequence similarity to explain these results, suggesting that these probes were contaminated.
