If you mean Beringia, the continental glaciers have retreated and the ice has melted, raising the sea level over the low land that made up the bridge.
The Bering Straits land bridge existed due to the geological effects on the land masses at each side of the strait.
There was no other way to get to the New World as any land bridge no long existed.
The Beringia land bridge and ice bridge are not the same. The Beringia land bridge refers to a former land connection that existed between Siberia and Alaska during the last Ice Age, allowing animals and humans to migrate between Asia and North America. The Beringia ice bridge, on the other hand, is a theory that suggests that during certain periods of glaciation, sea ice in the Bering Strait may have connected the two continents, facilitating migrations.
During the last Ice Age, the earliest inhabitants arrived in North America by crossing a land bridge known as Beringia, which connected Asia to North America across the Bering Strait. This land bridge existed due to lower sea levels during the Ice Age, allowing people to migrate from Siberia into what is now Alaska. As the climate warmed and the ice melted, this land bridge submerged, isolating the populations that had moved into North America.
A land bridge might have existed between the western part of North America and Asia millions of years ago before the glaciers melted and filled the area up with water. The migration of people from Asia to North America can be traced back to this era.
The land bridge the connected Alaska to Russia was in existence around 10,000 years ago. It formed because sea levels were lower at the time due to more of Earth's water being frozen in the icecaps and other glacial structures.
Scientists refer to the land bridge that once connected Asia and North America as Beringia. This land bridge emerged during the last Ice Age when sea levels dropped, allowing humans and animals to migrate between the two continents. Beringia is significant for understanding the spread of early human populations into the Americas.
land bridge
A land bridge does not separate places. A land bridge connects them.
The overhead traveling bridge crane existed as early as 1860
A land bridge. An Isthmus.
If you are referring to the Bering strait land bridge, it wasn't made but was part of the earth. It was an ice bridge.