Avenue and 29th Street on the south side Anderson, Indiana in Madison County Patton Tunnel/Taswell Tunnel, rail tunnel, long, Norfolk Southern Railway, under Tunnel Hill Road between Taswell and English in Crawford County Ritner Tunnel/The Big Tunnel, rail tunnel, 1857, long, CSX railroad under Tunnel Hill, along the East Fork of the White River, east of Tunnelton and west-southwest of Fort Ritner in Lawrence County Willow Valley Tunnel, rail tunnel, 1900, long, CSX railroad, under State Road 650 south of Willow Valley in Martin County Iowa Harmon Tunnel, road tunnel under Backbone Ridge, built as a millrace, 1858, widened for road use, 1925, long, Pammel State Park, Madison County, Iowa, southwest of Winterset, Iowa Kentucky Cochran Hill Tunnel, twin tunnels, (I-64), carrying two lanes of traffic in each direction for I-64 under a section of Cherokee Park in Louisville between the exits at Grinstead Drive and Cannons Lane Cumberland Gap Tunnel, twin tunnels, US 25E, under Cumberland Gap National Historical Park, between Middlesboro, Kentucky and Harrogate, Tennessee. Nada Tunnel, KY 77, Powell County, near Red River Gorge Park, built for logging. Leatherwood Tunnel, twin tunnels, at Leatherwood in Perry County on KY 699. Louisville East End Tunnel, I-265 (also KY 841), twin tunnels carrying two lanes of traffic in each direction for I-265 under a historic property between the Lewis and Clark Bridge and US 42 in Harrods Creek, a Louisville suburban neighborhood. Louisiana Belle Chasse Tunnel, LA 23 under the Gulf Intracoastal Waterway, southeast bound only, Belle Chasse (near New Orleans) Harvey Tunnel, twin tunnels, Business U.S. 90 frontage roads, under the Gulf Intracoastal Waterway, Harvey (near New Orleans) Houma Tunnel, (LA 3040) a two-lane tunnel crossing under the Gulf Intracoastal Waterway in Houma Maryland (three) Baltimore and Potomac Tunnels (B&P Tunnel), twin-track rail tunnels, Amtrak (formerly Pennsylvania Railroad), Baltimore Gilmor Street Tunnel Wilson Street Tunnel John Street Tunnel Baltimore Harbor Tunnel, twin tunnels, Interstate 895 under Patapsco River, Baltimore Borden Tunnel, abandoned rail tunnel, 1911, 957 feet long, Western Maryland Railway north of Frostburg, now part of Great Allegheny Passage rail trail Brush Tunnel, active tourist rail tunnel and rail trail, 1911, Western Maryland Scenic Railroad (formerly Western Maryland Railway), west of Corriganville, also now part of Great Allegheny Passage rail trail Dalecarlia Tunnel, abandoned rail tunnel, 1910, CSX (formerly Baltimore and Ohio Railroad), underneath MacArthur Boulevard and the Washington Aqueduct in Brookmont, now part of Capital Crescent