Yes.
No barely above sea level
The Pacific islands which were acquired in 1867 as U. S. territories were the Midway Atoll. These islands are also known as the Midway Islands.
Midway Atoll consist of three Islands, Sand, Eastern and Spit Islands.
The United States did acquire the Midway Islands through imperialism. The Midway Islands was initially un-owned and had no coaling station.
The Battle of Midway took place over the islands of the Midway group in the Pacific Ocean and to the north and west of the islands.
Midway Islands, in the Pacific Ocean. Midway Islands includes Eastern Island, Sand Island, and Spit Island
The United States took possesion of the Midway Islands.
Midway Islands
Midway Islands and the Hawaiian Islands in the Pacific and, in a way, Puerto Rico in the Atlantic.
The Midway Islands are mid or half way between North America and Asia in the middle of the Pacific Ocean.
1867
A bridge to where? Certainly not to Hawaii or the other nearby tiny islands. A 1941 photograph of Midway Atoll shows no bridge among the islands.