The phrase "a key bridge in" is correct and usable in written English.
It can be used to describe an important connection or role that something plays within a specific context or framework.
Example: "The study serves as a key bridge in understanding the relationship between climate change and biodiversity loss."
Alternatives: "a crucial link in" or "an essential connection in".
The attack continued yesterday, and its first efforts were to isolate Tikrit from the south, from the west, and also from the north, as well as a key bridge in the center of town that crosses the Tigris River.
Amtrak officials said last night that passenger service between New York and three Southern states, including Florida, had been suspended until tomorrow because of emergency repairs to a key bridge in North Carolina.
One likely candidate to be added to its market coverage footprint now that it's flush with Series A cash is France, which plays a key bridging role in European travel geography, connecting land journeys from the U.K. (via the channel tunnel/ferry) on to many key destinations in central Europe.
The signal, he said, would mean we would meet that same night at about 2am on the bottom level of an underground garage just over the Key Bridge in Rosslyn.
The group dropped anchor not far from Long Key Bridge in the Middle Keys.
2.30pm Protesters will march on the Key bridge in the suburb of Georgetown, as one of the protests occurring across the country to campaign against the poor state of America's infrastructure.
Multiple cars on M Street and the Key Bridge honked in apparent approval.
He was, in fact, the key bridge figure in the early abolitionist movement, connecting the first wave of antislavery spokesmen in the decades leading up to the American Revolution with another wave of emancipationists awakened in the third decade of the nineteenth century.
The first strikes would take down the Serb air-defense system, followed quickly by bombing attacks against what Short called the "strategic target set" — the country's power grid, communications systems, key bridges, routes in and out of Belgrade, and a half-dozen military command centers.
Concerted efforts are needed to increase condom use in this key bridge population to curtail the spread of HIV in the general population.
