are there any other tunnels build under this river?
Yes, Lincoln Tunnel
Lincoln Tunnel
The Lincoln Tunnel is an approximately tunnel under the Hudson River, connecting Weehawken, New Jersey, to the west with Midtown Manhattan in New York City to the east.
what does the holland tunnel look like underwater UNANSWERABLE what is this tunnel? It is a vehicular tunnel under the Hudson River is this tunnel built to connect cities? Yes, Lower Manhattan with Jersey City does the river flow through these aforementioned cities? Yes
wiki:5247488
Lincoln Tunnel [SEP] Introduction
The Lincoln Tunnel is an approximately tunnel under the Hudson River, connecting Weehawken, New Jersey, to the west with Midtown Manhattan in New York City to the east. It was designed by Ole Singstad and named after Abraham Lincoln. The tunnel consists of three vehicular tubes of varying lengths, with two traffic lanes in each tube. The center tube contains reversible lanes, while the northern and southern tubes exclusively carry westbound and eastbound traffic, respectively. The Lincoln Tunnel was originally proposed in the late 1920s and early 1930s as the Midtown Hudson Tunnel. The tubes of the Lincoln Tunnel were constructed in stages between 1934 and 1957.