Kingsport, Tennessee

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CSX - Holston River Bridge (Sullivan County, Tennessee)
Built in 1907 as part of first segment of the South & Western RR, later the Carolina, Clinchfield & Ohio, later the Clinchfield Railroad
Four-span Pratt deck truss railroad bridge over the Holston River, South Fork
Open to rail traffic

CSX - Holston Tunnel (Sullivan County, Tennessee)
Built as part of the O & W's Speers Ferry, VA to Johnson City, TN segment, tunnel rehabilitated 1927
Tunnel under Holston Ridge on CSX (formerly Clinchfield) Railroad
Open to traffic

CSX - North Fork Holston River Bridge (Sullivan County, Tennessee)
Construction started in 1907 by the South and Western Railroad Co., and finished in 1908 by its successor, the Carolina, Clinchfield and Ohio Railroad Company
Three-span Pratt deck truss bridge over Holston River, North Fork in Kingsport
Open to rail traffic

CSX Spur Holston River (South Fork) Bridge (Sullivan County, Tennessee)
Built to carry railroad spur from Tennessee Eastman Company to Holston Army Ammunition Plant
Three Pratt through truss spans over Holston River, South Fork on CSX Railroad
Open to traffic

Eastman Road Holston River Sluice Bridge (Sullivan County, Tennessee)
One of two truss bridges over the Holston River South Fork at Eastman Chemical Company--first longer one sunk in river after overweight 18-wheeler caved it in--county later closed this two-span bridge 8 blocks south
Abandoned 2-span Pratt through truss bridge over Holston River, South Fork Sluice Banch that formerly carried South Eastman Road in Kingsport
Abandoned

Ft. Robinson Bridge (Sullivan County, Tennessee)
Built 1938 to replace dirt road that ran along branch, rehabilitated 1990
Concrete tee beam bridge over Dry Hollow Branch on Fort Robinson Drive
Open to traffic, sidewalks have potholes

Hammond Memorial Bridge (Sullivan County, Tennessee)
Built 1929 to replace an earlier steel truss bridge near the old Pactolus Ferry; later converted to southbound traffic after parallel bridge built in 1969
Three-span open spandrel concrete arch bridge over South Holston River on State Highway 36 (southbound)
Structurally deficient, meets minimum tolerable limits to be left in place as is

Netherland Inn Road Bridge (Sullivan County, Tennessee)
Replaced a steel truss bridge that collapsed into the river in 1936; bypassed by new bridge in 2009
Warren deck truss bridge over North Fork Holston River on Netherland Inn Road
Open to pedestrians only

NS - Big Sluice Bridge (Sullivan County, Tennessee)
Warren through truss with all verticals bridge over Big Sluice/Riverport Road on Norfolk Southern Railway
Open to traffic

NS - Holston River Bridge (Sullivan County, Tennessee)
Warren through truss with all verticals bridge over Holston River on Norfolk Southern Railway
Open to traffic

Reedy Creek Bridge (Sullivan County, Tennessee)
Bridge over Reedy Creek on West Industry Dr
Open to traffic

Rotherwood Bridge (Hawkins County, Tennessee)
Lost Camelback through truss bridge over Holston River West of Kingsport.
Collapsed; replaced by new bridge in 1937