Interstate Railroad
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- History: Summary | Design | Surveys | Railroad Battles | Construction | Clinchfield Coal
- Predecessors: Summary | CRRR | 3Cs | OR&C | S&W | CC&O
- Leaders: George L. Carter | M.J. Caples | John B. Dennis
- Floods: Floods and Clinchfield/CSX Reconstruction
- The Clinchfield: Maps | Mileposts | Stations | Connections | Branches/Spurs | Yards | Sidings | High Line | Bridges | Tunnels | Grades | Loops | Santa Train
- Locomotives: Summary | Diesels | Steam | Challengers | No.1 | CRR 800 | CSX Heritage Unit
- Operations: Summary | Freight | Passenger | Timetables | Wrecks | Dispatcher’s Sheet
- Corporate Couplings: Summary | Family Lines | Seaboard System | CSX | Closure/Reopening
- CSX/CRR Today: Summary | CSX Kingsport Sub | CSX Blue Ridge Sub
- Railfanning: Summary | Restaurant Guide
- Destinations: Summary | Elkhorn City | Breaks | Dante | Speers Ferry | Kingsport | Johnson City | Erwin | Nolichucky Gorge | Spartanburg | and more
- Model Railroads: Summary
- Resources: Books | Scholars | Museums
- Clinchfield.org: Editor | Site Map
- Related Websites: Appalachian-Railroads.org | Southern-Railroads.org

Interstate Railroad – IRR | INT
Interstate Stats
- Reporting Mark: INT | IRR
- Chartered: 1896
- Began Operation: 1909
- Length: 88 miles
- Headquarters: Andover VA
- Primary Cities: Appalachia and Norton VA
- Primary Freight: Coal
- Passenger Service: Yes
- Successor: Purchased by Southern Railway in 1961
- Clinchfield Connection: Miller Yard
Interstate and the Clinchfield
Interstate originated coal along its 88 miles of mainline and branches and delivered to the Clinchfield Railroad at Miller Yard VA, and to the Southern Railway at Appalachia VA. Interstate also provided trackage rights for the L&N, allowing for coal and freight to be exchanged between the Clinchfield and the L&N. During most of its existence, the Clinchfield was jointly leased by the Atlantic Coast Line and the L&N.
Miller Yard by Ron Flanary
Miller Yard, VA, June 20, 1974. This facility was built by the Interstate Railroad in an isolated spot on the north bank of the Clinch River in 1923 as part of the line’s Guest River Extension from Norton, and down the Guest River Gorge.

From the left you have the Clinchfield RR main, the CRR passing track, then seven yard tracks, plus the Interstate main, all designated for either delivery or pick up traffic for the two railroads. On the far left were once a few section houses and a hotel, plus a depot (about mid-way down the tangent on the far left). There was also a coaling station (the concrete shell of which can be seen on the right), water tank and other facilities for both railroads. From 1930 to 1935, L&N crews also used the hotel for off-duty “rest” before heading back to Kentucky.
The small metal building held an Interstate clerk until just before this time. It was probably the worst job on the railroad, since this was (and is) a very lonely and isolated spot. The orange and white pole to the right is an antennae for the Interstate dispatcher’s radio.
After 1973, almost all L&N interchange traffic moved to the N&W Clinch Valley District between Norton and St. Paul, leaving very little interchange at Miller Yard. The TTX flat in the distance with two “pigs” were not permitted through the tight N&W tunnels, so they came this way for a few years. The Interstate continued to run its own coal traffic to the Clinchfield during this decade, but it eventually tailed off to nothing.
Interstate Memories by Ron Flanary
The first shot is USRA-design Mallet No. 21, one of two the line purchased in the mid-20s to handle traffic on the new connection to the Clinchfield at Miller Yard, Va. I’m guessing this was in the late 40s, after a shopping at Southern Railway’s steam shop at Coster (Knoxville).

The diesel shot is No. 37, which was actually the first purchased by the railroad in 1953. Alco won an order for eight of these units, but this one had been on the property for a time as demonstrator No. 1607. It was dark blue (solid) and was nicknamed the “Blue Goose”–most likely because of the “honk” of its single-note air horn. When the order was placed, Interstate shopmen refurbished and modified the demonstrator in the shop at Andover under supervision of Alco technicians. Dynamic braking was installed, along with MU capability, and of course, final painting in the scheme applied on units 30-36, built new at Alco’s plant in Schenectady, N.Y. The photo was likely taken by Interstate’s assistant to the president, Hank Stuart, who was the short line’s unofficial photographer.

The last shot is one of mine taken on the evening of April 25, 2012. NS had agreed to paint one of the 20 “heritage” units in Interstate colors, and 8105 (a GE ES44AC) was the recipient of the distinctive paint scheme. The engine had just completed its initial road trip from the paint shop in Chattanooga, through Knoxville, and finally to Andover that night. I was the only photographer on site that night to record what was a “homecoming” of sorts.

Clinchfield.org Sources and Resources
The following are excellent resources for those of you wanting to explore and learn more about the Clinchfield Railroad. These sources of information also serve as reference and historical materials for Clinchfield.org. Much of the content on the website is verified across multiple sources.
- Associations: Carolina Clinchfield Chapter National Railway Historical Society, Louisville & Nashville Railroad Historical Society, George L. Carter Railroad Historical Society, Watauga Valley Railroad Historical Society
- Personal maps, timetables, track charts, and memorabilia
- Archives of Appalachia – ETSU, Johnson City TN
- Books – Beach: ‘The Black Mountain Railway,’ Drury: ‘The Historical Guide to North American Railroads’, Goforth: ‘Building the Clinchfield’ and ‘When Steam Ran the Clinchfield’, Graybeal: ‘The Railroads of Johnson City’, Helm: ‘The Clinchfield Railroad in the Coal Fields’, Irwin & Stahl: ‘The Last Empire Builder: The Life of George L. Carter’, King: ‘Clinchfield Country’, Marsh: ‘Clinchfield in Color’, Poole: ‘A History of Railroading in Western North Carolina’, Poteat & Taylor: ‘The CSX Clinchfield Route in the 21st Century’, Stevens & Peoples: ‘The Clinchfield No. 1 – Tennessee’s Legendary Steam Engine’, Way: ‘The Clinchfield Railroad, the Story of a Trade Route Across the Blue Ridge Mountains’, Wolfe: ‘Norfolk & Western’s Clinch Valley Line‘ and ‘Southern Railway Appalachia Division,’ and Young: ‘Appalachian Coal Mines and Railroads in Color.’ Volume 1: Kentucky, Volume 2: Virginia
- Magazines – ‘Trains‘ , ‘Classic Trains‘
- Newspaper Articles – Newspapers.com
- Online Article – Scientific American: ‘The Costliest Railroad in America‘, Classic Trains: ‘Remembering the Clinchfield Railroad‘, Railway Age: ‘This Coal Road Is Also A Speedy Bridge Line,’ Sept 1, 1952 edition, ‘Railway Signaling and Communications‘, Flanary: ‘The Quick Service Route, The Clinchfield Railroad‘, Flanary: ‘Men Against Mountains, Running Trains on the Clinchfield‘ October 2001
- Online Videos – Ken Marsh on Kingsport area railroads and region’s history Video #1, Ken Marsh on railroads and region’s history Video #2:
- Websites – Carolana.com – North Carolina Railroads, South Carolina Railroads, Johnson’s Depot hosted by StateOfFranklin.net, RailFanGuides.us for Johnson City and for Erwin, The Radio Reference Wiki, SteamLocomotive.com, VirginiaPlaces.org – Railroad History of Virginia, Multimodalways.org

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Would enjoy hearing from you if you have questions, suggestions, edits, or content that you are willing to share. Don’t hesitate to reach out if you have similar interests in the Clinchfield or Model Railroads.
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