1878+1962 NS/Southern/CNO&TP Nemo Tunnels #22, #23 and #24 near Wartburg, TN

Old #22: (Archived Bridge Hunter; Bridge Hunter; Satellite, south portal. Note bridge pier just south of the portal.)

#23: (Archived Bridge Hunter; Bridge Hunter; Satellite, north portal)

Old #24: (Archived Bridge Hunter; Bridge Hunter; Satellite, south portal)

New #22: (Archived Bridge Hunter; Bridge Hunter; Satellite, south portal)

NS Bridge: (Archived Bridge Hunter; Bridge Hunter; Satellite)

New #24: (Archived Bridge Hunter; Bridge Hunter; Satellite, south portal)

1929 Pedestrian Bridge: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)

CNO&TP = Cincinnati, New Orleans & Texas Pacific

1 of 29 photos posted by Matt Murphy
Nemo Tunnel last week [Jul 2026]— at Nemo Tunnel.
[Note that the tunnel provides plenty of clearance for double-stack container cars.]

I think Matt was at the south portal of New #24.

"First Train", company photographer via BridgeHutner_new_#24

The old tunnels were built in 1878. The were 15' (4.6m) wide and 20' (6m) high. In 1962, they were bypassed by tunnels that were 20' (6m) wide and 30' (9.1m) high. Old #24 was replaced by an adjacent New #24. Old #22 and #23 were replaced by New #22 and a new bridge on a new alignment. The right-of-way with the new tunnels is in purple in this map. The tunnels marked with dashed black lines are the old tunnels.

1980/88 Lancing Quad @ 24,000

In addition to building new tunnels, a lot of dirt was moved. This view of the north portal of New #24 also shows the new NS bridge over the Emory River.

company photographer via BridgeHutner_new_#24

Looking the other way along the bridge, we se the south portal of New #22.

2012 photo by Shane Passmore via BridgeHunter_new_#22

1906+1927 Nemo Bridge

There is a third span hidden in the trees because over half of this bridge is over a flood plain.

Street View, Sep 2015

It is faint, but we can see the third truss in this photo.

BridgeHunter_pedestrian

I think 1923 is a late date to still be building a pin-connected bridge.

2010 photo by Calvin Sneed via BridgeHunter_pedestrian

RedGlobeReflections

We can see a hint of the third truss in this photo.

2010 photo by Calvin Sneed via BridgeHunter_pedestrian

Aban/NYC and 1951 US-60 Bridges over Gauley River in Gauley Bridge, WV

NYC: (Archived Bridge Hunter; Bridge Hunter; Historic Bridges; Satellite)

US-60: (Archived Bridge Hunter; Bridge Hunter; Historic Bridges; Satellite)

The Gauley River joins the New River to form the Kanawha River.

A view of the NYC bridge from the US-60 bridge. 

Street View, Jun 2022

Note the abandoned piers on this side of the railroad bridge.

2011 photo by Irma Hale via BridgeHunter_NYC

Those piers have been repurposed as a suspension bridge for a pipe.

2011 photo by Irma Hale via BridgeHunter_NYC

Normally, I would not note a steel-girder bridge, but Historic Bridges considered it worthy of inclusion. 1951 is probably an early date for steel-girder bridges.

HistoricBridges_US-60
"This is a representative example of a large mid-20th century steel stringer bridge in West Virginia."

3 of 23 photos posted by Waldo's Adventures with the comment: "Old trestle over the gauley river gauley bridge wv has not seen a train in years  someone clean the brush off the bridge."

Waldo's Adventures shared

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Originally, this bridge connected NYC with C&O.

1931/48 Fayetteville Quad @ 62,500

When Conrail was split up, CSX got the bridge. Of course, CSX would have no desire to interchange with NS here. But a couple of Waldo's photos shows that rails are still on the bridge. Is CSX keeping this bridge intact in case they need an emergency detour? Looking at the satellite image, the C&O branch along the Gauley River doesn't look like it is used much. But if that is the case, why did they build a 2011 replacement bridge at Gauley?

National Rail Network Map

Also, CSX has a connection with NS just downstream on the Kanawha River at the Deep Water Bridge.

National Rail Network Map

1921 US-66 Rock Creek Bridge and Route 66 Mural in Sapulpa, OK

Bridge: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)

Mural: (Satellite)

US-66 Overview

The 1925 railroad bridge in the background was built by Frisco, and it is now used by the Stillwater Central Railroad (SLWC). [Bridge Hunter]

Street View, Dec 2013

Street View, Apr 2022

2008 photo by Rick Mattioni via BridgeHunter

Jason Armstrong, Jan 2023

Facebook Reel

The Route 66 mural:

Street View, Apr 2022

The bridge and mural:

Street View, Apr 2022

1870+1902+2026 NS/Pennsy Bridge over East Fork Whitewater River in Richmond, IN

(Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)

"Originally built about 1870, current trusses built in 1902 on original stone substructures." [BridgeHunter]

Street View, Aug 2024

Bituminous Kole posted two photos with the comment: "Future show: First train to roll over the new Norfolk Southern bridge over the Whitewater River in Richmond Indiana: 64Q. Yes, a loaded ethanol train. Bold."

J.B. Rail Photog shared

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[The old trusses are between the yellow and red cranes and a new span for the south side is behind the yellow crane by the river.]

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[The 1870 arch continues to be used.]

Bill Dwyer commented on the above post
The old one comes out...

Gary Pope posted
West side of the John’s Manville lead is in place.

The trusses were pin connected.

2010 photo by Anthony Dillon via BridgeHunter

Historic Photo via BridgeHunter

BridgeHunter

1:05:59 video @ 1:07
36 Hours From Last Train Over Old Bridge to First Train Over New Bridge
"After several months of staging equipment and materials, the demolition and replacement of Warfolk Southern's bridge over the Whitewater River in Richmond, Indiana was replaced in just days. The world's third tallest crane was instrumental in getting this work done so quickly."
At 8:24 I saw the name Terex on the crane.
I'm surprised they don't have a second hook with far fewer leads to handle the lighter loads such as track so that they could move the load much faster.
(I shoved the cursor over the railfanning parts.)

They do have the extra counterweights attached to lift the truss.

@ 40:54

He went home after this scene, so I was left with the question of how did the crane turn further to get rid of the truss? If it turned much further, its added counterweight would bump into the new span that is stored under the arch. I decided that the truss is close enough to the crane that they can remove the extra counterweight. Then they can turn the crane further and walk the crane towards the storage area for the old truss. That would explain why the crane pad is set up so that the crane can move back and forth. They needed the extra counterweight just to reach over the river to lift the second span off its piers.

@ 46:43

Note the use of spreader bars under a spreader bar so that they can lift the track at four different spots. Rails are remarkably flexible and need a lot of support.

@ 48:21

At 52:32 is the worse excavator operation that I have watched. I would think they would assign one of their better operators to this time-sensitive job.

1968 CSX/NC&StL Running Water Creek Trestle over I-24 near Whiteside, TN

(Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)

NC&StL = Nashville, Chattanooga and St. Louis Railway 

The 1113 (339m) long trestle has 100' (30.5m) spans. [BridgeHunter]

Northbound:

Street View, Nov 2024

Southbound:

Street View, Dec 2015

Looking North:

Mark Boettcher, Nov 2023

J.B. Rail Photog posted

** windshield view**

If you've ever driven this stretch of the interstate, you've definitely looked up at this massive piece of steel.

Who knows exactly where this iconic overpass is?

Drop your guesses!

"This bridge is a critical piece of infrastructure to CSXT and NS as it is the CSXT main from Nashville to Chattanooga and NS uses it for trackage rights for their Memphis and Charleston line. This is the fourth or fifth bridge to be built at that location. There will always be a Running Water Creek bridge." [Alan Walker comment on ArchivedBridgeHunter]

J.B. stopped for some railfanning.

J.B. Rail Photog posted
Finally got to see the massive Running Water Creek Trestle in person!  This towering steel giant cuts right over I-24 just west of Chattanooga, and it's wild seeing it slice diagonally across the valley from down here. Managed to time it perfectly to catch CSX L795 train rolling across as my radio wasn't getting good reception in that valley.

Frank Keller Photography: Love this area and the fact that CSX and NS both run over this line. Very nice JB

David Harding: I've often wondered what was here before the interstate was built.

Was it a continuation of the trestle style that is on either side of the highway?

Tag Rail: David Harding the trestle was there first, but the concrete piers were installed for the Interstate. Before the bridge was entirely those old iron bridge piers.

Michael Arnold commented on the above post
It is indeed a towering trestle.

J.B. Rail Photog posted three photos with the comment: "A few angles of this Running Water Creek Trestle over I-24 in Whiteside, TN.  It's a pretty neat bridge if you can catch a train going across which isn't difficult as this line the CSX Chattanooga Subdivision that also as Norfolk Southern trains also running over via trackage rights that date back to the 1800s and I have found these are some the oldest trackage rights still in existence from the predecessor railroads."

Curtis Tate: It’s a swap of sorts. NS uses CSX track from Wauhatchie to Stevenson and CSX uses the NS Tennessee River bridge at Decatur.

Justin Strickland: The Stevenson Extention which was under construction by Southern almost eliminated those trackage rights but it was never fully completed

https://www.chattanoogan.com/2015/9/11/307746/New-Chattanooga-Railroad-Book-Includes.aspx

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Kimberly Friar commented on the above post
Was there yesterday

I-39+90+94 Bridges over Wisconsin River near Portage, WI

(no Bridge Hunter; Satellite)

I normally don't bother noting UCEB (Ugly Concrete Eyesore Bridges), but this construction video is worth noting.

After some typical drone scenes of some tandem lifts, this scene shows how they unload a beam from a truck. The end of the beam has already been lifted off its trailer and swung over to the carriage that will take it across the temporary bridge. The right crane will unhook once that end is on the carriage, and the left crane will attach to the beam. We will see the barge tilt as it takes the weight off of the carriage. Not that 12 axles are required to carry the beam on the highways.

Facebook Reel

rasmith
The bridge replacement cost $135m.

Construction began in May 2024, and it is expected to be completed in 2027. [portagewi]

511wi
"Replacing the existing I-39/90/94 Wisconsin River bridges. One new bridge will be located to the east of the existing bridges and the other will be located at approximately the same location as the existing bridges." [Are they going from 6 lanes to 12 lanes? No. See below. The bridges will handle 8 lanes after a later project adds a fourth lane in each direction to the highway.]

A satellite image caught the temporary bridge that was used to get the beams across the river. I don't know why I can't see a second crane for the tandem lifts of the beams.

Satellite

acppubs
"Nearly a quarter of the 60,000 average daily vehicles passing through the corridor are trucks. The traffic on the bridge increases dramatically — up to 75 percent during the summer months due to tourist traffic."

This photo is old enough to catch a foundation pile drill.

acppubs
"The new bridges will be 1,760 feet long, making them slightly longer than the existing bridges. They will also be wider at 80 feet. However, the bridges will remain three lanes when the project opens. Porter noted that WisDOT has a separate future project to widen the interstate to four lanes. When that occurs, the bridge will be restriped to accommodate a fourth lane."
The riverbed has a highly variable rock profile. Some of the drilled shaft foundations went down 120' without achieving the design capacity. So they had to redesign the pier foundations. They also encountered artesian (underground water) pressure around some of the drilled shafts. That required additional foundation designs. Some of the new designs meant that they had to bring in new subcontractors and equipment.
The nearby high-tension wires added another challenge.

It looks like the old bridge used steel girders. The new one uses prestressed concrete girders.

Street View, Sep 2025