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Tunnel

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SP - East Tunnel (Val Verde County, Texas)
Built 1882;
Abandoned tunnel on Southern Pacific Railroad
Derelict/abandoned/partly inundated

SP - Shasta Line Tunnel #6 (Shasta County, California)
Built ca. 1884; Inundated 1948
Tunnel on Central Pacific/Southern Pacific Railroad
Inundated

SP - Summit Tunnels 6, 7, and 8 (Placer County, California)
Built by the Central Pacific Railway as part of the original transcontinental railway to finally cross the Sierra's at Donner Pass; Track 1 abandoned in 1996
Abandoned tunnels on former Central Pacific (later SP) Railroad
Abandoned

SP - Tunnel #5 (San Francisco County, California)
abandoned in 1956 when the old Bayshore Highway was expanded
Abandoned tunnel under Sierra Point on Southern Pacific RR
Derelict/abandoned

SPC - Wrights Tunnel (Santa Clara County, California)
Built 1880, rails removed and dynamited 1942
Abandoned tunnel on South Pacific Coast Railroad
Blocked off near both ends, portals still open

SPS - Tunnel #19 (Spokane County, Washington)
Built 1910. Abandoned 1971. Ends buried.
Lost Tunnel on Spokane, Portland & Seattle Railway
Filled in

SPS - Tunnel 13 (Benton County, Washington)
Built 1907 abandoned 1951
Abandoned tunnel on Abandoned Spokane,Portland and seattle railway
abandoned

Squirrel Hill Tunnel (Allegheny County, Pennsylvania)
Built 1953
Tunnel on I-376/US-22/US-30 Penn Lincoln Parkway East


ST - Hoosac Tunnel (Berkshire County, Massachusetts)
Longest tunnel built at its time, 194 killed during construction, most important piece of railroad history.
Tunnel under Hoosac Mountains on Pan Am Railways
Open with daily traffic

ST - Terryville Tunnel (Litchfield County, Connecticut)
Built 1906-10, single-tracked 1940
Tunnel on Pan Am Railways Waterbury Branch
Open to traffic

St Francis Avenue Tunnel (Milwaukee County, Wisconsin)
Opened in 1998
Tunnel under St. Francis Ave and the Union Pacific Railroad on Wis 794
Open

St. Clair Tunnel (St. Clair County, Michigan)
Built 1888-1891; Electrified 1907-1908; Electrification removed 1958: Tube sealed 1994
Tunnel under St. Clair River on Canadian National Railroad in Port Huron
Closed to all traffic

St. Louis Freight Tunnel (St. Louis, Missouri)
Built in 1875 along with the completion of Eads Bridge as a route to Union Station. Later used as a freight route as passenger trains bypassed the tunnel for Merchants and MacArthur Bridges.
Tunnel under downtown on the MetroLink in St. Louis
Open to two tracks of MetroLink light rail service with bypass to original freight alignment

Staple Bend Tunnel (Cambria County, Pennsylvania)
Built 1831-33
Tunnel on Rail Trail
Open to pedestrians only

State Route 75 Tunnel (Lawrence County, Ohio)
Built 1866
Tunnel on SR 75
Open to pedestrians only

STMA - Benewah Tunnel (Benewah County, Idaho)
Tunnel on St. Maries River Railroad
Open to traffic

STMA - Rover Tunnel (Benewah County, Idaho)
Tunnel on St. Maries River Railroad
Open to traffic

Stockton Street Tunnel (San Francisco County, California)
Built 1912
Tunnel under Bush, Pine & California Streets on Stockton Street
Open to traffic

Stowe Tunnel (Allegheny County, Pennsylvania)
Built 1909; rehabilitated 1940-41
Tunnel under two city streets on Seventh Street
Open to traffic

Stringers Ridge Tunnel (Hamilton County, Tennessee)
Built 1909
Tunnel under Stringers Ridge on State Highway 8
Open to traffic

Stumphouse Tunnel (Oconee County, South Carolina)
contruction began in 1856, abandoned 1859
Never finished pre-Civil War railroad tunnel
Open to pedestrians, bring a flash light!

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

TAG - Pigeon Mountain Tunnel (Walker County, Georgia)
Built 1891, abandoned sometime in the early 1980's
Abandoned tunnel under Pigeon Mountain on Southern Railway (Formerly Chattanooga Southern and the Tennessee, Alabama & Georgia Railway)
Abandoned

Tanbark Ridge Tunnel (Buncombe County, North Carolina)
Built ca.1930
Tunnel under Mountain on Blue Ridge Parkway
Open to traffic

Taxiway A Tunnel (Allegheny County, Pennsylvania)
Tunnel under Taxiway A on Union Railroad & Lebanon Road/PA-885
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

The Clinchfield Loops - A: Ridge Tunnel (Mitchell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; rehabilitated 1958. The following tunnels are labeled beginning with "A" as the line descends the Blue Ridge.
Tunnel under Blue Ridge, Eastern Continental Divide on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - D: 1st Washburn Tunnel (McDowell County, North Carolina)
1st Washburn Tunnel is the 41st tunnel on the historic Clinchfield Railroad, and 4th on the descent of the railroad down the Blue Ridge to Ashford, NC
Tunnel under Washburn Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - E: 2nd Washburn Tunnel (McDowell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; north end rehabilitated 1925, south end rehabilitated 1913
Tunnel under Washburn Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - F: Quinn Knob Tunnel (McDowell County, North Carolina)
Quinn Knob Tunnel is the 6th tunnel on the Clinchfield Railroad's historic 'Loops' line descending the Blue Ridge, and is the 43rd tunnel on the line built from Elkhorn City, KY to Spartanburg, SC
Tunnel under Quinn;s Knob Ridge, an offshoot of Washburn Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - G: 3rd Washburn Tunnel (McDowell County, North Carolina)
The third in a series of tunnels that surround Washburn Ridge, in the Clinchfield Railroad's historic descent from the Blue Ridge to the Atlantic coast , tunnel rehabilitated 1913
Tunnel under Washburn Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - I: Lower Bridle Path Tunnel (McDowell County, North Carolina)
Built as part of the S & W Railway's historic Altapass to Marion segment
Tunnel under Bridle Path Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - J: Speedy Tunnel (McDowell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; rehabilitated 1914
Tunnel under Short Extension of the Blue Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - K: Lower Pine Ridge Tunnel (McDowell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; rehabilitated 1914
Tunnel under Lower Pine Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Clinchfield Loops - L: Bird Ridge Tunnel (McDowell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; rehabilitated 1914
Tunnel under Bird Ridge on Clinchfield Railroad (now CSX)
Open to traffic

The Little Tunnel (Berkshire County, Massachusetts)
Built 1882; rehabilitated 1930
Masonry tunnel over ST/Pan Am Freight Main Line on MA 2 (W. Main Street) in North Adams
Open to traffic

Toad Tunnels (Yolo County, California)
Tunnel for toad crossings
Tunnels under Pole Line Road
Open to toads, frogs, etc.

Toledo Zoo Tunnel (Lucas County, Ohio)
Built sometime between 1933 & 1937 ; Closed 1997 after a MOB was built over Anthony Wayne Trail; Rehabbed & Reopened 2018
Tunnel under Anthony Wayne Trail on Pedestrian Path
Open to pedestrians only

Toothrock Tunnel (Multnomah County, Oregon)
Built 1936 due to the need to relocate the highway for the construction of Bonneville Dam
Tunnel under Toothrock on Eastbound I-84
Open to traffic

TRRA - Arch Grounds Tunnel #1 (St. Louis, Missouri)
Built 1963
Tunnel under a hill on the Jefferson Nat'l Expansion Memorial Park on TRRA Railroad
Open to railroad traffic

TRRA - Arch Grounds Tunnel #2 (St. Louis, Missouri)
Built 1963
Tunnel under the Gateway Arch on the TRRA Railroad
Open to railroad traffic

TRRA - Arch Grounds Tunnel #3 (St. Louis, Missouri)
Built 1963
Tunnel under a hill on the Jefferson Nat'l Expansion Memorial Park on TRRA Railroad
Open to railroad traffic

Tulip City Airport Tunnel (Allegan County, Michigan)
Built 2003
Tunnel under Airport runway on S. Washington Avenue/58th Street
Open to traffic

Tunnel Drive Tunnel No. 1 (Fremont County, Colorado)
Tunnel on the Tunnel Drive Trail in Canon City
Open to pedestrians only

Tunnel Drive Tunnel No. 2 (Fremont County, Colorado)
Tunnel on the Tunnel Drive Trail in Canon City
Open to pedestrians only

Tunnel Drive Tunnel No. 3 (Fremont County, Colorado)
Tunnel on the Tunnel Drive Trail in Canon City
Open to pedestrians only

Tunnel Hill State Trail - Tunnel Hill Tunnel (Johnson County, Illinois)
Tunnel on the Tunnel Hill State Trail (originally Cairo and Vincennes Railroad) under Tunnel Hill
Open to pedestrians and bicyclists only

Tunnel Log (Tulare County, California)
Germinated ?; Tree fell over the road in 1937; Tunnel cut in 1938.
Tunnel/Tree over Road
Open to traffic

Tunnel No. 1 (Jefferson County, Colorado)
Built 1951
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 1 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 2 (Jefferson County, Colorado)
Built 1941
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 2 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 3 (Jefferson County, Colorado)
Built 1957
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 3 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 4 (Gilpin County, Colorado)
Built 1939
Abandoned tunnel on CO 119 near the junction with US 6
Still intact, but boarded up after the roads were realigned to make this tunnel unnecessary

Tunnel No. 4 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 5 (Clear Creek County, Colorado)
Built 1939
Tunnel on US 6 in Clear Creek Canyon
Open to two-lane traffic

Tunnel No. 5 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 6 (Clear Creek County, Colorado)
Built 1939
Tunnel on US 6 in Clear Creek Canyon
Open to two-lane traffic

Tunnel No. 6 (Klickitat County, Washington)
Built 1933
Tunnel on WA 14
Open to traffic

Tunnel No. 7 (Klickitat County, Washington)
Built 1933
Tunnel on WA 14
Open to traffic

Turkey Creek Diversion Tunnel (Wyandotte County, Kansas)
Constructed to divert Turkey Creek into the Kansas River. Rehabilitated 2009
Water Diversion Tunnel for Turkey Creek in Kansas City
Currently Open as a Water Diversion Tunnel for Turkey Creek

Turn Hole Tunnel (Carbon County, Pennsylvania)
Built 1866
Tunnel under Lehigh Gorge State Park on Lehigh Gorge State Park Pedestrian Path
Open to pedestrians only

Tuscarora Mountain Tunnel (Huntingdon County, Pennsylvania)
Begun c.1885 by S. Penn. RR; first tube completed 1940 by Penna. Tpk. Comm.; second tube completed 1968.
Tunnel on Pennsylvania Turnpike/I-76
Open to traffic

TVRM - Whiteside Tunnel (Hamilton County, Tennessee)
Built 1858
Tunnel under Missionary Ridge on Tennessee Valley Railroad Museum (formerly Southern Railway)
Open to traffic

Twin Tunnels (N) (McDowell County, North Carolina)
Built ca.1930
Tunnel under Blue Ridge Parkway
Open to traffic

Twin Tunnels (S) (McDowell County, North Carolina)
Built ca.1930
Tunnel under Mountain on Blue Ridge Parkway
Open to traffic

UNCG Pedestrian Tunnel (Guilford County, North Carolina)
Built 2012-14
Tunnel under Norfolk Southern Railway on Pedestrian Pathway
Open to pedestrians only

Union Canal Tunnel (Lebanon County, Pennsylvania)
Completed 1827; canal closed 1880's; purchased by LCHS in 1950.
Tunnel under Tunnel Hill; Tunnel Hill Road on Union Canal
Stable. Repairs were made to portals in 2000 & 2002

UP - Beaver Tail Tunnel (Mesa County, Colorado)
Built ca. 1883
Tunnel on Union Pacific Railroad
Open to traffic

UP - Big Bend Tunnel No.7 (Butte County, California)
Built 1968 for Oroville Dam line relocation
Tunnel under hillside on UP RR
Open to traffic

UP - Bootlegger Tunnel (Grand County, Utah)
Tunnel under hillside on UP RR
Open to traffic

UP - Carlin Tunnels (Elko County, Nevada)
Built 1903
Tunnel under Carlin Canyon; Humboldt River UP railroad
Open to traffic

UP - Chatsworth Tunnel #27 (Los Angeles County, California)
Built 1904
Tunnel under hillside on UP RR
Open to traffic

UP - Chatsworth Tunnel #28 (Los Angeles County, California)
Built 1904
Tunnel under Topanga Canyon Blvd on UP RR
Open to traffic

UP - Chilcoot Tunnel (Plumas County, California)
Built 1906
Tunnel on Union Pacific Railroad
Open to traffic

UP - Curvo Tunnels (Summit County, Utah)
Tunnel under hill on Union Pacific RR
Open to traffic

UP - Deen Tunnel (Eagle County, Colorado)
Built 1889-90
Tunnel on Union Pacific Railroad
Intact but closed to all traffic

UP - East Belden Tunnel (Eagle County, Colorado)
Built 1890
Tunnel on Union Pacific Railroad
Abandoned

UP - Ford Creek Tunnel (NW) (Carbon County, Utah)
Tunnel on Union Pacific Railroad
Open to traffic

UP - Ford Creek Tunnel (SE) (Carbon County, Utah)
Tunnel on Union Pacific Railroad
Open to traffic

UP - Glenwood Tunnel (Garfield County, Colorado)
Built 1883
Tunnel on Union Pacific Railroad


UP - Gray Summit Tunnel (Franklin County, Missouri)
Bored when the MPRR line Through Gray Summit was rebuilt to handle increased rail traffic.
Tunnel underneath the town of Gray Summit on the Union Pacific Railroad
Open to two-track railroad traffic

UP - Hermosa Tunnel (Albany County, Wyoming)
Built 1901/1918
Tunnel
Open to traffic

UP - Horseshoe Bend Tunnel (Malheur County, Oregon)
Lost Tunnel on Union Pacific Railroad
Collapsed

UP - Keddie Wye Tunnel 32 (Plumas County, California)
Tunnel on Union Pacific Railroad
Open to traffic

UP - Kyune Tunnels (Carbon County, Utah)
Tunnel under hillside on UP Railroad (former DRGW)
Open to traffic

UP - Labadie Railroad Tunnel (Franklin County, Missouri)
Built 1929
Short railroad tunnel under Route T on the Union Pacific Railroad just southwest of Labadie
Open to two tracks of railroad traffic

UP - Moffat Tunnel (Grand County, Colorado)
Built 1923-1928
Tunnel under Continental Divide west of Denver on Union Pacific RR
Open to railroad traffic, including Amtrak's California Zephyr and Ski Train

UP - Natron Cutoff Tunnel 22 (Lane County, Oregon)
Built 1910
Tunnel on Union Pacific Railroad
Open to traffic

UP - Natron Cutoff Tunnel 23 (Lane County, Oregon)
Built 1923; closed late1980's
Abandoned tunnel
Derelict/abandoned

UP - Natron Cutoff Tunnel 5 (Lane County, Oregon)
Built 1927
Tunnel on Union Pacific Railroad
Open to traffic

UP - North Bridge Bay Tunnel (Shasta County, California)
Built 1940
Tunnel under Bridge Bay Hill on Union Pacific Railroad
Open to traffic

UP - North Second Street Overpass (Douglas County, Kansas)
Tunnel for North Second Street and two sidewalks on Union Pacific Railroad in Lawrence


UP - Red Hill Tunnel (Fremont County, Colorado)
Tunnel under Hill on Union Pacific Railroad
Intact but closed to all traffic

UP - Rock Creek Tunnel (Eagle County, Colorado)
Built 1890
Tunnel on Union Pacific Railroad
Intact but closed to all traffic

UP - Ruby Tunnel (Mesa County, Colorado)
Built 1883
Tunnel under land in Rainbow Canyon on UPRR (former D&RGW)
Open

UP - San Fernando Tunnel (Los Angeles County, California)
Built 1875
Tunnel on Union Pacific Railroad
Open to traffic

UP - Santa Susana Tunnel (Ventura County, California)
Finished in 1904, Rebuilt 1922
Tunnel on Union Pacific Railroad
Open to traffic

UP - Shoshone Tunnel 1 (Garfield County, Colorado)
Built ca. 1883
Tunnel on Union Pacific Railroad
Open to traffic