Tuesday, November 18, 2025

1913-19 Incline (Funicular) Railway up South Table Mountain near Golden, CO

(Satellite, the grove that was cut into the mountain for the tracks.)

Charlene Sharp posted
Castle Rock Mountain Railway and Park in Golden, Colorado
Will Fleckenstein shared
Zoe Fuller posted with the same comment.
[In this day and age of AI, there are a lot of comments accusing it of being fake.]

Dennis DeBruler commented on Will's share
I'm trying to figure out what that car did when it was on the steep part of the track to keep people from leaning forward at least 30 degrees. https://maps.app.goo.gl/K6MJ9d488wVcJYvR8
Dennis DeBruler : A photo, https://goldenhistory.pastperfectonline.com/photo/20138D44-3241-4C1B-87D6-375292593320, shows that the seats lean backwards. So the people in the postcard must not be setting with their backs against the seat on the more level part.

Toby Mexico commented on Zoe's post
Here's the facts.

ngdiscussion

The snow highlights the former right-of-way.
AlpineTunnel
"For many years this peak had a dance hall.  Curiously, this dance hall was used by the KKK for a period of time in the 1920s."
[The dance hall was built in 1908 and the funicular was built so that it was easier to get to the hall.]

There was also a Funicular up Lookout Mountain.
AlpineTunnel

1917-1993 Bypassed/Laughery Creek Road Bridge near Albany, IN

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

2009 photo by Anthony Dillon via ArchivedBridgeHunter
The span is 39' (12m).

A farmer was using it to store round bales.
Street View, Oct 2013

"With a listed construction date of 1917, this bridge's riveted connections and Warren configuration are typical for the period in which the bridge was built. What is not typical is the decorative ball finials mounted on top of the ends of the railing. Decorations of this sort were used more frequently on pre-1900 truss bridges, usually through trusses, and usually mounted on top of the trusses. Such decorations are highly unusual on a 1917 bridge. It is not sure why this bridge had such decorations included. It may be a "trademark" of a particular bridge builder, but it is not known what company might have built this bridge." [HistoricBridges]

2009 photo by Anthony Dillon via BridgeHunter

Satolli Glassmeyer posted
Built in 1917, this historic Dearborn County Bridge near Aurora, Indiana was abandoned in 1993. The story is in the comments below.
To have your historic bridge featured on our YouTube Channel, contact me.

The 7:06 video in the above referenced webpage

Monday, November 17, 2025

1854-1967 Jaeger Mill and Danville Dam near Columbus, WI

(Satellite)

Street View, Jul 2024

Street View, Jul 2024

Aaron Johnson posted
Jaeger Mill, also known as the Danville Mill near Columbus, Wisconsin, is a historic water-powered mill built around 1854 on the Crawfish River. It served local farmers by grinding grain until milling operations ended in 1967. The building is said to still contain much of its original machinery, including large grindstones. 📷: Aaron Johnson

brian holzhausen, May 2022

Elizabeth De Haan. Oct 2025

I could not find any interior photos. Judging from some comments and photos, there must be good crawfish here.

1973 Welland Canal Aqueduct over Welland River near Port Robinson, ON

(Satellite)


This is the aqueduct for the bypass canal. What is now the Welland Recreational Canal had an aqueduct over the river in Welland. Today, it has a siphon.

Dougie Jay posted
The Welland River Aqueduct at Port Robinson .. the CSL Tadoussac upbound in the Canal  .. also visible at upper left is the last remnant of the former Welland River channel before the New Canal Bypass was constructed; view looking NE (image by Carl Green)
🚢
Carl Green: Thank you for the photo credit. If you want to share future images of mine, please use the link to my post rather than downloading the image and uploading it again. That way I get the viewer count, which I get paid for. Thanks. [I clicked the link, but I got an "unavailable" in response. I did not know that Facebook monetized views. That probably explains why I'm seeing so much plagiarism on Facebook.]

Dougie Jay added three photos as comments to the above post.
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When completed, the new Welland Canal Bypass and the rerouting of the Welland River through the new aqueduct created what is now Merritt Island, this island stretches all the way to downtown Welland between the river and the old Canal.

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1930 (Barry Dunham)

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2016


Sunday, November 16, 2025

1942 182dmw Watts Bar Lock, Dam and Powerhouse on Tennessee River

(3D Satellite)

"Watts Bar Lock’s chamber is 360-feet long by 60-feet wide. The lock boasts a 59-foot lift from Chickamauga lake to Watts Bar lake. Construction of Watts Bar Lock started July 1, 1939, and went into permanent operation Feb. 16, 1942." [dvidshub]

TVA
"The dam has five generating units with a net dependable capacity of 182 megawatts....Watts Bar Dam is 112 feet [34m] high and stretches 2,960 feet [902m] across the Tennessee River....Watts Bar has one 60- by 360-foot lock that lifts and lowers barges as much as 70 feet [21m] to Chickamauga Reservoir. The lock handles more than a million tons of cargo a year."

TVA posted

Kim Trevathan via KnoxMercury
"What to Expect if You Lock Through Watts Bar Dam—in a Canoe Going Upstream"

Aaron Kulas posted three photos with the comment: "Watts Bar Dam and the shuttered visitors center 😥"
Tom Bateshttps://babel.hathitrust.org/cgi/pt...
Billy Price: Aaron Kulas the Watts Bar Steam plant was decommissioned in 1982 and demolished in 2011. It was the first coal fired TVA plant. Most of the rest of the coal fleet was built after WWII. The dams provided most of the war effort power.
Steven Wrigley: Why was the visitors center shuttered?
Billy Price: Steven Wrigley It was also the control room, up on a ridge separate from the dam. The switchyard is behind it and the cables from the generators to the yard burned in the early 2000’s. They built a new control room inside the plant off the turbine deck.
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Andrew Henderson posted
Watts Bar Steam Plant, May 5, 1942.
Photograph from the Tennessee Valley Authority’s Historic Photographs collection (1933–1980). National Archives.

Feb 1, 2023: TVA posted four photos with the comment: "Regular maintenance is essential to keep our river navigation locks operating! The US Army Corps of Engineers (Nashville District), which operates and maintains the lock system at our dams, finished some major work at Watts Bar Lock in East Tennessee. The crew installed armor plating to prevent concrete loss." 
Steve Blazier: Wish they would finish the main lock at Wilson Dam.
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The U.S. Army Corps of Engineers Nashville District’s Maintenance Support Team onboard the Motor Vessel Iroquois is positioned on the downstream side of Watts Bar Lock on the Tennessee River in Decatur, Tennessee, to repair the needle-dam-girder beam slot Jan. 19, 2023. (USACE Photo by Leon Roberts

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Watts Bar Lock posted the above four photos with the comment: "DECATUR, Tenn. (Jan. 24, 2023) – The Nashville District’s Maintenance Support Team onboard the Motor Vessel Iroquois is repairing the needle-dam-girder beam slot on the downstream end of Watts Bar Lock on the Tennessee River.  Full Story: https://www.dvidshub.net/.../maintenance-support-team..."
Fort Loudoun Lock shared with the comment: "Some great people doing fantastic work at the next lock downriver from us! Hats off to the Watts Bar Lockmaster & crew along with our District Maintenance Support Team! Way to go, folks!"

TVA posted four photos with the comment: "Construction of Watts Bar Dam began in 1939. It was completed in January 1942, three weeks after Pearl Harbor, and provided urgently needed electricity for the war effort—including the Manhattan Project at nearby Oak Ridge National Laboratories. Along with power production, Watts Bar brings incredible recreation, including elite fishing, swimming, and boating!"
Fort Loudoun Lock shared with the comment: "Some historical pics & info regarding the construction of Watts Bar Lock, Dam, and Hydropower plant back in the day. It's amazing what these Engineers & different trade workers accomplished way back then with less sophisticated equipment & minimal technology as compared with today's standards. All this construction of massive infrastructure completed in just a 3-4 year period!"
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Sean Brady posted
“Philadelphia, Pennsylvania. Stator frame of the 30,000 kilowatt generator which Westinghouse Electric Company is manufacturing for the Watts Bar Dam of Tennessee Valley Authority (TVA). It is lined with thousands of armature coils, and over 100,000 sheets of laminated iron which serve to conduct the electricity. The stator frame is part of the generator inside of which revolves the rotor or revolving part. The whole frame weighs 425,000 pounds and is shipped in four quarter sections. A worker measures the resistance of the windings. The frame measures 378 inches in diameter. June 1943”
James Chessman: Those laminated iron sheets are there to conduct **the magnetic field**, not the electricity. The windings around the iron cores conduct the electricity and they are most likely copper.
Those iron sheets are most likely formulated to offer a high resistivity -- meaning they do not conduct electricity very well -- and this is intentional. In the presence of a changing magnetic field such as will happen when this machine is operating, conductive iron will support eddy currents that will detract from overall efficiency. You want the current induced in the copper, not the iron.
In modern rotating electrical machinery (i.e. motors and generators), these core laminations are usually silicon steel. I suspect they are here too, not technically iron.
Silicon steel is not really good for much other than magnetic coring. It ranges toward the soft side (although it can be somewhat brittle) and it is not hardenable. There are two varieties: "grain-oriented" and "non-grain-oriented". Non-grain-oriented is for rotating elements and grain-oriented is for stationary elements.
Eli Benson: The wires of this stator are actually flat copper bars.

Randy Welborn commented on Eli's comment
Well, not "bars" but rectangular copper wire. Can't remember the number of turns.

Facebook reel

1865 D Street under C&NW at Mendota is the oldest bridge in MN

(no Bridge Hunter; no Historic Bridges; Satellite, the trail and the abandoned C&NW are buried under the tree canopy.)

Scott Berglund posted
I took this photo a few days ago while my son and I were exploring the area across the river from Fort Snelling State Park.
This is the Sibley Ferry Stone Arch Bridge, a historic railroad bridge built in 1864–65. It’s one of Minnesota’s oldest surviving railroad bridges and now serves as a scenic walking path.
CJ Bahan: It is in-fact THE oldest bridge in Minnesota..
Craig Cilley: D Street. Entrance to some great fat biking. Just be aware of the muddy trails from the Mendota springs.
Laura Duffey: This bridge is also a trail entrance to Fort Snelling State Park (many people may not realize that the park also includes land on the south side of the Minnesota River).
The train track above it was removed in the 1950s.
Pat Cosgrove: Laura Duffey There are two bridges. One has an active track going over it.
Laura Duffey: Pat Cosgrove Correct. The stone bridge had the old, removed track. The new metal tunnel bridge with the active track (and which you can barely see in your photo) replaced an older wooden bridge which was removed about 20 years ago. Fun fact: if you stomp your feet hard against the ground the new metal tunnel vibrates sound in a really cool way. I feel compelled to do that every time I go through it

I used this photo on Google Maps to confirm that I found the correct location.
Ben Zvan, Aug 2013

This view shows the "metal tunnel" mentioned by Laura above.
Street View, May 2023

Caleb Spooner commented on Scott's post
This tunnel was how you got to the old river road, which used to go out on the (then) peninsula which is (now) Picnic Island. The main channel used to go around that peninsula but it was tight curves and hard for boats to navigate. That, and the floods in the early '60's caused the Army Corp of Engineers to cut a new channel across the entire Mendota side, cutting off the peninsula and making it a part of the western shore, where it's now known as Picnic Island. The old channel is now an oxbow lake. There used to be businesses like boat rentals and the River Road Club, kinda where Mpls Rock & Roll started. There was a railroad line that crossed it and a swing bridge that ran trains up along the western side to Minnehaha Falls. All of this is gone now, the businesses, the old River Road, map changed forever. If you look at google maps you can see the old channel around Picnic Island and the new channel that cut it all off from the Mendota side. Hard to believe they could move that much earth! Here is an aerial pic of the area back in 1937 with the tunnel marked.

Caleb Spooner commented on Scott's post
And here's the aerial pic from 1970, with the new channel, tunnel marked.

1967/69 St Paul West Quad @ 24,000

Lock #10 on Barge Canal at Cranesville, NY

(Satellite)


The lift is 15' (4.6m). [nycanalmap]

Street View, Oct 2024

2 of 18 images posted by Yvonne Wall with the comment: "Historic Erie Canal and the "Seneca Chief " I start out with a rare picture 3/29/1916 of Cranesville at lock 10."
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Saturday, November 15, 2025

1910,1998 Tail/Milwaukee Trestle over Hull Creek west of Garcia, WA

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

K H, Jun 2023

"Middle span built in 1998 after a 1988 storm caused a mudslide that destroyed the original middle spans." [BridgeHunter]

This 1951 photo caught it while it was still electrified and was not yet damaged by the mudslide.
John Harker posted four images with the comment: "When I was editing this gray mount Kodachrome slide, I realized it was taken over 74 years ago.  H. M. Stange photographed west bound Milw train 15 the Olympian Hiawatha on May 29th, 1951 crossing Hull Creek Trestle west of Garcia, Washington. He must have taken it from a Pullman 10-6 sleeper in front of the “Skytop” lounge sleeper.  The consist is pretty easy to see in this view.  A Milw 1951 passenger time table and equipment list along with a USGS topo map segment are included for reference.  John Harker editing and collection"
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Lance Gouty commented on John's post
I'm thinking Hull Creek, based on my bike ride a couple of years ago.

Lance Gouty commented on John's post

Gene Bisbee Flickr via ArchivedBridgeHunter
HullCreek15
Old railroad bridge at Hull Creek in Iron Horse Park. It once carried the old Chicago-Milwaukee-St. Paul-Pacific Railroad, also known as the Milwaukee Road.
It now carries the John Wayne Pioneer Trail across the Cascades from the Columbia River in the east to a point about 30 miles from Seattle.