Immersed Tube Tunnel

Amtrak - East River Tunnels (Queens County, New York)
Built 1910,
Tunnels under East River on Amtrak
Open to traffic

Baltimore Harbor Tunnel (Baltimore, Maryland)
Closed for 3years and renovated in 1987
Tunnel under Patapsco River on I-895
Open to traffic

BART - Transbay Tube (San Francisco County, California)
Built 1969; Opened 1974
Tunnel under San Francisco Bay on BART
Open to traffic

Baytown Tunnel (Harris County, Texas)
Built 1953, Closed 1995, Demolished 1997-1999 due to the deepening of the Houston Ship Canal
Lost Tunnel under Houston Ship Channel on TX 146
Replaced a new bridge

Callahan Tunnel (Suffolk County, Massachusetts)
Built 1961
Tunnel under Boston Harbor on East Boston Expressway (MA 1A)
Open to traffic

Chesapeake Bay Bridge-Tunnel (Northampton County, Virginia)
Northbound lanes built 1964; Soutbound lanes built 1995-9
Bridge-tunnel over/under Chesapeake Bay on US 13
Open to traffic

Detroit-Windsor Tunnel (Wayne County, Michigan)
Built 1930
Tunnel under Detroit River on US I-375/M-10 & Former Canada 3B in Windsor, Ontario Canada and Detroit
Open to traffic

Fort McHenry Tunnel (Baltimore, Maryland)
Built 1980-1985
Tunnel under Patapsco River on I-95 SB/NB
Open to traffic

George C. Wallace Tunnel (Mobile County, Alabama)
Built 1973
Dual four-lane tunnel under Mobile River on I-10 in Mobile
Open to traffic

Hampton Roads Bridge-Tunnel (Hampton, Virginia)
Buil 1957 (WB), Built 1976 (EB)
Tunnel under Hampton Roads on Hampton Roads Beltway/US60/I-64
Open to traffic

Holland Tunnel (Hudson County, New Jersey)
Built 1927
Tunnel under Hudson River on Interstate 78
Open to traffic

John H. Bankhead Tunnel (Mobile County, Alabama)
Built 1940
Single two-lane tunnel under Mobile River on US 98 (old U.S. 90) in Mobile
Open to traffic

Lincoln Tunnel (Hudson County, New Jersey)
Center tube opened 1937, north tube opened 1945, south tube opened 1957.
Tunnel under Hudson River on NJ-495/NY-495/former I-495
Open to traffic

Midtown Tunnel (Portsmouth, Virginia)
Built 1962
Tunnel under Elizabeth River on US-58
Open to traffic

Monitor-Merrimac Memorial Bridge-Tunnel (Suffolk, Virginia)
Built 1992
Tunnel under Hampton Roads on I-664
Open to traffic

NYCTA - 53rd Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on IND Queens Boulevard Line
Open to traffic

NYCTA - Concourse Tunnel (New York County, New York)
Built 1932
Tunnel under Harlem River on IND Concourse Line
Open to traffic

NYCTA - Cranberry Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on IND Eighth Avenue Line
Open to traffic

NYCTA - Greenpoint Tube (Queens County, New York)
Built 1932
Tunnel under Newtown Creek on New York City Metropolitan Transit Authority
Open to traffic

NYCTA - Rutgers Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on New York City Transit Authority
Open to traffic

PATH - Downtown Hudson Tubes (New York County, New York)
Opened 1909
Tunnel under Hudson River on Port Authority Trans-Hudson (PATH)
Open to traffic

PATH - Uptown Hudson Tubes (New York County, New York)
Opened 1908
Tunnel under Hudson River on Port Authority Trans-Hudson (PATH)
Open to traffic

Posey Tube (Alameda County, California)
Built 1927, seismic retrofit 2000
Immersed Tube tunnel under Oakland Inner Harbor on State Route 260

Queens-Midtown Tunnel (New York County, New York)
Built 1940
Tunnel under East River on Interstate 495
Open to traffic

Sumner Tunnel (Suffolk County, Massachusetts)
Built 1934; Converted to one-way westbound traffic in 1961
Tunnel under Boston Harbor on East Boston Expressway (MA 1A)
Open to traffic

Ted Williams Tunnel (Suffolk County, Massachusetts)
Built 2003 as part of Big Dig project
Tunnel under Boston Harbor on Massachusetts Turnpike (Interstate 90)
Open to traffic

Washburn Tunnel (Harris County, Texas)
Built 1950
Tunnel under Houston Ship Channel on Federal Road
Open to traffic

Webster Street Tube (Alameda County, California)
Built 1963
Tunnel under Oakland Inner Harbor on State Route 260, Webster Street
Open to traffic