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SOU - New Tunnel 24

Morgan County, Tennessee

Photos 

NS 9425 with NS 215

NS D9-40CW #9425's headlights begin to show inside the bore of the new Tunnel 24, note the visible bare rock cut past the concrete entrance.

Photo taken by Alex Wood in July 2012

Enlarge

BH Photo #243760

Map 

Video 

Nemo Sampler

Alex Wood

Play video on YouTube

Description 

Replacement tunnel for bypassed CNO&TP/CS #24. Was built to increase clearance for modern rail cars. Approximately 40 to 50 trains per 24 hour period pass through. Track speed is 40 miles per hour. Most trains will sound horns before entering tunnel. Tunnel sits prior to a 1.25% grade. Trains northbound will enter throttled up for the climb, southbounds exit in full dynamic braking. Trespassing within the bore is strictly prohibited, dangerous and punishable by federal law.

Facts 

Overview
Tunnel under Tunnels through Nemo Mountain on Railroad
Location
Morgan County, Tennessee
Status
Open to traffic, railroad tunnel, approximately 40 - 50 trains in a 24 hour period.
History
Built in 1962 as part of the tunnel bypass program which replaced tunnels 22, 23 and 24 with new 22 and new 24 and built the Emory River Bridge between the two new tunnels. It was placed in service Nov. 12, 1962.
Railroads
- Cincinnati Southern Railway (CNTP)
- Southern Railway (SOU)
Design
Tunnel mix of concrete and bare rock bore.
Dimensions
Total length: 2,248.0 ft. (0.4 mi.)
Deck width: 20.0 ft.
Vertical clearance above deck: 30.0 ft.
Also called
Nemo #2
Cincinnati Southern New Tunnel 24
NS #24
Approximate latitude, longitude
+36.06633, -84.65107   (decimal degrees)
36°03'59" N, 84°39'04" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/711544/3993859 (zone/easting/northing)
Quadrangle map:
Lancing
Inventory number
BH 54666 (Bridgehunter.com ID)

Categories 

Built 1962 (230)
Built during 1960s (2,198)
Cincinnati Southern Railway (28)
Morgan County, Tennessee (26)
Open (41,561)
Owned by city (6,316)
 Railroad (17,179)
Southern Railway (400)
Tennessee (1,288)
Total length 1000-2500 feet (2,063)
Tunnel (1,374)

Update Log 

  • October 8, 2014: New video from Alex Wood
  • April 28, 2014: New photos from Alex Wood
  • November 3, 2013: Updated by Ed Hollowell: Date, owner and history.
  • February 17, 2013: New photo from Alex Wood
  • November 30, 2012: New photos from Alex Wood
  • November 29, 2012: Added by Alex Wood

Sources 

  • Alex Wood
  • Ed Hollowell - erhollowell [at] aol [dot] com

Comments 

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