District of Columbia
- 9th Street Tunnel, under the National Mall (one-way southbound from Constitution Avenue to I-395), NW & SW DC
- 12th Street Tunnel, under the National Mall (one-way northbound from I-395 & Independence Avenue to Constitution Avenue, SW & NW DC
- 16th Street tunnel under Scott Circle
- Barney Circle tunnel, Southeast Freeway (Interstate 695)
- Beach Drive tunnel under National Zoo office area, Rock Creek Park
- Chesapeake and Ohio Canal National Historical Park road culverts:
- mile 1.3, near Canal Road & Foxhall Road (3 & 4 are in Maryland)
- mile 3.1, Abner Cloud house (a.k.a. Fletcher's Boat House)
- Connecticut Avenue tunnel under Dupont Circle
- E Street Expressway tunnel under Virginia Avenue
- First Street Tunnel, Amtrak Northeast Corridor, under First Street NE & SE on Capitol Hill
- K Street tunnel under Washington Circle
- Massachusetts Avenue tunnel under Thomas Circle
- Third Street Tunnel, Interstate 395
- southern portion, under the National Mall Capitol reflecting pool
- northern portion, under Massachusetts Ave & H Street NW
- Virginia Avenue Tunnel, CSX RF&P Subdivision, under Virginia Avenue SE
- West Leg of Inner Loop (Interstate 66) tunnel under intersection of New Hampshire Avenue and Virginia Avenue NW
Read more about this topic: List Of Tunnels In The United States
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