Showing posts with label towerMain. Show all posts
Showing posts with label towerMain. Show all posts

Friday, June 26, 2026

C&NW Division Street and Carpenter Street Towers

Division Street: (Satellite, the elevated foundation has been repurposed.)
Carpenter Street: (Satellite)

John Martin posted two images with the comment: "Interesting stuff I stumbled across about the two former control towers at CNW's Erie St. yard, Division St. and Carpenter St. As of March 1959 Carpenter disappeared from the CNW track chart but Division St. was still there. Anyone have a photo of either tower? Here is what I have: two pages from an article appearing in Signal Engineer Journal June 1911 and the CNW Harvard track chart showing Division St. Tower."
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Bob Lalich commented on John's post
Here are photos of the towers from a GRS publication, which I am unable to locate at the moment. Note that Carpenter St Tower was actually located on Sangamon St, but there already was a Sangamon St Tower which controlled the entrance to the Chicago St Engine Terminal and Erie St Yard.

Bob Lalich commented on John's post

John Martin posted
More on CNW Division St. and Carpenter St. towers from Signal Engineering publication showing plans. Still haven't found any photos of them yet but the search goes on.

1938 Aerial Photo from ILHAP


Tuesday, May 6, 2025

1890 B&OCT Polk Street Tower

1890: (Satellite, Taylor Street used to have a bridge and go further East.)
New (1902 and/or 1949): (Satellite)
 
This would have been the tower built in 1890.
MWRD posted
A view to the east showing a bucket dredge in operation on the South Branch of the Chicago River near Taylor Street [Bridge] on March 22, 1917.
Dennis DeBruler shared with the comment: "That is obviously a railroad interlocking tower behind the cables of the shovel. According to the topo map that I added as a comment, it is a B&OCT tower. What would be the name of that tower?"
Jon Roma: At various times in the past, if I am deciphering the timeline properly, the CTT/B&OCT had a Polk St. tower, then a Harrison St. tower, and again a Polk St. tower.
Jacob Metzger: I believe this would be ‘Polk Street Tower.’

From that webpage:
"POLK STREET
Electric pneumatic interlocking installed 1890
New electric pneumatic interlocking installed 1902
New tower constructed/electric interlocking installed 1949
Tower controlled movements at Grand Central Station, closed 1969. Also controlled Chicago River bridge immediately southwest from 1902 until 1930, when river was straightened and new drawbridge built at 16th Street. New tower constructed in 1949 was closer to Roosevelt Road."

Clifton Linton: I don't think that's a B&OCT tower. Based on the date of the photograph (March 22, 1917), the B&OCT by this time had built an elevated tower that controlled the trackage for Grand Central Station and the twin-leaf Scherzer Rolling Lift Bridge.
Dennis DeBruler: Clifton Linton From Jacob's reference, we have:
POLK STREET
Electric pneumatic interlocking installed 1890
New electric pneumatic interlocking installed 1902
New tower constructed/electric interlocking installed 1949
So the 1902 "new electric pneumatic interlocking installed" must have also been a new tower, and the MWRD photo is of the 1890 tower. That would explain why the 1890 tower is labeled a "repair shop" in the 1906 map that Jon provided.

Dennis DeBruler commented on his post
1929/29 Englewood Quad @ 24,000

Jon Roma commented on Dennis' post
Here's a snippet from a 1906 Sanborn fire insurance atlas showing the area between Polk on the north, Fifth Ave. (Wells St.) on the east, Taylor St. on the south, and the river on the west.
Dennis DeBruler: Jon Roma In 1906, this must have been a regular interlocking as well as a "repair shop" because Jacob's reference indicates that the new tower about a block south of here wasn't built until 1949.

The upper yellow pin is labelled "B&O Polk Street (old)," and the white pin is labelled "B&O Polk Street (new)."
Map


Friday, January 13, 2023

Chicago's Douglas Park "L" Line (Now Pink Line)

Oak Park Terminal: (Satellite, it is now a linear parking lot)
CTA 54th Street Railyard and Shop: (Satellite)
Current Terminus: (Satellite)
Last Overpass: (Satellite)

This route was the southern most route of the Metropolitan West Side "L". The western part of this route is at ground level. That is, it is not elevated.

Jon Roma posted
This is an outstanding photograph from www.thetrolleydodger.com taken around 1950 of a westbound CTA train passing the interlocking at the east end of the Douglas Park elevated's western terminus at Oak Park Ave. in Berwyn, Illinois.
While the vintage "L" cars attract most people's attention, I am more captivated by the lower quadrant semaphore signals, and the interlocking leadout – the network of iron pipes that connected the tower's levers with the the switches and signals making up the plant. One can virtually trace the specific pipes to specific apparatus – one pipe for each semaphore blade, and two for each switch: one to throw the switch, and the other to engage the facing point lock (FPL). Only when the switch points and FPL are in the proper position can a signal be cleared.
At the time this photo was taken, most of Chicago's elevated railroad was dark railroad: Train separation other than at interlocking plants was by simple operation on sight. Chicago's first subway was opened in 1943, and was the first extensive use of automatic block signaling. Wooden cars were also banned from the subway.
Unfortunately, this photograph was captured near the twilight of this portion of the Douglas line. This mechanical interlocking – which by its very nature had to be manned whenever trains were operating – was costly to operate, as were the warning devices for 22 street crossings on this ground-level trackage – all manually controlled by gatemen.
The CTA and city of Berwyn could not reach an agreement for cost-sharing of the expense of replacing the gatemen with automatic crossing warning devices. With declining ridership as passengers flocked to their automobiles, CTA decided it could no longer sustain the payroll cost that included a score of watchmen for the street crossings. On February 3, 1952, CTA lopped off the outer 14 blocks (1.75 miles) of the Douglas line, abolishing the leverman at Oak Park Ave. terminal, along with the gateman positions, and ticket agents at the six stations that were shed from the system.
From that date forward, the Douglas "L" line terminated at 54th Ave. in Cicero, where connections were made to gasoline buses running on nearby Cermak Ave. 54th Ave. remains the terminal today (although the facility was replaced around 2000). The line is now known as the CTA Pink Line. There are still a number of grade crossings on the ground level portion of this line. Other than at interlocked locations, there are no wayside signals on the Pink Line, and main tracks on CTA's rail network are equipped with cab signals and automatic train control.
The abandoned right-of-way between 54th Ave. and Oak Park Ave. became a linear parking lot, which was certainly a sign of the times. Today, one wonders how many Berwyn residents wish they still had "L" service to Chicago's Loop.
Mel Patrick: I can't help but cringe looking at the hot electric rails almost wide open to any person or animal that might wander in.
Jon Roma: Mel Patrick, same with the CA&E!
Mel Patrick: Also the Lake Street line on ground level in Oak Park.
Jon Roma: And the Ravenswood, Skokie Swift, and Evanston ... all of which are still in service (albeit well-protected by fences and cattle guards at crossings). You can tell I'm old-school because I didn't refer to them as the Brown, Yellow, and Purple! 🙂
Andre Kristopans: Berwyn was totally intransigent. Don't close any crossings, do not automate them, we want gatemen, we are not giving you a penny. Cicero said fine, automate. So they kept their L.
Jon Roma: Andre Kristopans, and they sued CTA about closing the line too. Great negotiating tactic that surely reaped dividends for them.
Andre Kristopans: Jon Roma delayed closing by several months

Jon commented on his post
Here's a contemporary view from roughly the same location. Note that the garage to the left of the "L" train is still standing. The apartments behind the garage still stand, but are obscured by foliage. The location is roughly 21st Place and Euclid Ave. in Berwyn, IL.

Ken Rehor commented on Jon's post
For perspective here's a bit of annotation showing the approximate train location overlayed with the current Google aerial view.
Jon Roma: Do you suppose the picture I shared was taken from the Euclid crossing, or do you think it was from the platform? There are not a lot of picture of this part of the line, and I have not seen *any* photos of the tower. Given the configuration of the interlocking leadout (14 pipes), I suspect it was a 16-lever frame, possibly dating to the building of the line.
Also, I don't see evidence of trip stops, and assume there were none at this relatively primitive terminal interlocking.

Ken commented on Jon's comment on his comment
I just noticed this picture is also on thetrolleydodger.com: "6053-6054 near Oak Park Avenue on the Douglas Park “L”. The date given here (December 1953) must be wrong, as the line had already been cut back to 54th Avenue by then. It may be December 1950, as Douglas was the first line to use the new 6000s. (Truman Hefner Photo)"

Ken commented on Jon's comment on his comment
Ken Rehor: At first I assumed your original pic was taken from Euclid Ave, but since it's from a slightly higher elevation, it appears to be from a platform. Was the platform along the entire way from Oak Park to Euclid? There's also this pic of the Oak Park Ave station. You can see in the far distance what appears to be the 2-flat at the Wesley Ave crossing.
"CTA 2725 at the Oak Park Avenue terminal of the Douglas Park “L” in December 1950.
The line was cut back to 54th Avenue, nearly two miles east of here, in 1952. This area is now used as a parking lot in Berwyn, often referred to as the “L” strip. (Truman Hefner Photo)"

Digitally Zoomed
Upon further review of these pics, I'm almost certain your original pic was taken from the platform that's in front of the tower, which is just east of the station at Oak Park Ave. But given the crossover, it doesn't appear there's any space for Euclid Ave to cross the tracks. Could it have only been cut through post-removal of the tracks?

Dennis DeBruler commented on Jon's comment on Ken's comment
Euclid would have been right next to the tower if it crossed the tracks. It looks like Euclid south of the tracks was just a parking lot back then. It makes sense that the street was cut through later because otherwise the road would have had to accommodate the signaling pipelines. (1938 aerial)
 
Glen Miller posted
The old Oak Park stop on the Douglas line. Established in 1924, enough land was purchased to extend the line all the way to Harlem but was never built. In 1951, the CTA proposed closing 20 stations on the Douglas line, ending it at Cicero. Cicero/Berwyn then both sued the CTA over the proposed cuts to service. In 1952, the court sided with the CTA. This station was demolished and the CTA changed their plans and instead, ended the line at 54th Av. in Cicero. The strip of land remains as a parking lot.
Glen Miller shared with the comment: "I took this line to 54th all throughout high school."

Sam Johnson posted
IF PINK LINE'S CICERO CROSSING IS THE SYSTEM'S BUSIEST.....KEDZIE CROSSING ON THE RAVENSWOOD IS SECOND BUSIEST. THIS PHOTO HAS A FIRST ORDER 6000 WITH A REPAINTED SCHEME....THE STANDEE WINDOWS LOST THEIR STRIPE. EASTBOUND TRAINS ALWAYS HAD TO STOP.....THERE'S A STOP SIGN TO ENFORCE THE RULE. THE STATION STOP WITH PASSENGERS COMING AND GOING USUALLY WAS ENOUGH. THE GATEMAN LOWERED THE GATES.DAVID HARRISON
Edward Kwiatkowski shared

The railyard was partially skunked by a train.
Street View, Aug 2018

This is the first ground-level crossing. I see what someone meant by the "cattle crossing guards." They want to make it hard to walk on the tracks. And unlike most tracks in Chicagoland, the right-of-way is fenced off its full length.
Street View, Oct 2019




Friday, August 5, 2022

Chicago Lake Street "L" Interlocking Tower near Pulaski Road

(Satellite, the spur is gone)

Dave Durham posted four photos with the comment: "Lake Street Elevated Ry, Pulaski Rd."
Dennis DeBruler: HAER ILL,16-CHIG,105A-
"Significance: A surviving example of an elevated railroad interlocking tower which is similar in design to the original towers used around the Union Loop by the Union Elevated Railroad in downtown Chicago For more information see the HAER files on the Union Loop: IL-1 and IL-1 A through F."
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Glen Olbermann: Lake St, the tower for the material yard and shops at Hamlin Ave, Pulaski Rd and Lake st station right there. I seen this tower many times when I was little riding in my dads old 66 Chrysler 300.

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1938 Aerial Photo from ILHAP

This spur appears to be another example of some errors in a topo map. The map shows that the spur is connected to the C&NW tracks rather than the "L" tracks.
1929 Chicago Loop @ 24,000

I found a 1951 photo that clearly shows a connection with the "L" and no connection with C&NW.
USGS AR1SA0000020023, 1951-12-04, 1:23,600

In the first photo, the two smokestacks on the horizon to the right of the tower were for the backshops of C&NW's 40th Street Yard.
Dennis DeBruler



Sunday, December 22, 2019

IC Weldon Tower and connections to the St. Charles Air Line

The St. Charles Air Line (SCAL) was effectively the first belt railroad in Chicago. When it was built in the mid 1800's, there were six railroads in Chicago: C&NW/G&CU, CB&Q, Rock Island, NYC/LS&MS, IC and NYC/MC. The St. Charles Air Line crossed the RI+LS&MS and connected C&NW+CB&Q with IC+MC. CB&Q initially used IC's passenger station. In fact, CB&Q's first headquarters was on IC's lakefront land.

(Update: an index of IC's Chicagoland yards and roundhouses)

This was before the SCAL was elevated.
Illinois Central Railroad Scrapbook posted
Interlocking towers, first patented in Great Britain in the 1850's, played a vital role in the safe and orderly movement of trains. One of the busiest Illinois Central interlocking towers in the Chicago area was Weldon tower, which controlled train movements around Central Station. The tower entered service on Sept. 12, 1893, about 5 months after Central Station was completed. This photo, was taken by an IC company photographer on June 5, 1896. It's unknown when the tower was demolished. Cliff Downey collection.
Dennis DeBruler shared
This is the first photo I have seen of Weldon Tower without the embankment for the "long hill" of the St. Charles Air Line next to it.

Note that the east connection of the SCAL goes North. (Now it goes South.)
eBook
It is hard to see in the map, but the IC actually had two connections. The "short hill" forked to the left (West) and quickly descended down to the passenger yard and Central Station. The "long hill" continue East on a bridge across the passenger tracks and descended a long embankment just east of Central Station. The red rectangle indicates the location of Weldon Tower, which was just west of the Long Hill.
1938 Aerial Photo, overview

1938 Aerial Photo, at photo resolution

I originally added the yellow rectangle to this photo to highlight the engine servicing facilities for Michigan Central. But it also highlights the viaduct for the long connection.
Bob Lalich commented on a posting
Very interesting photo David! Note the small roundhouse near the St Charles Air Line approach, which belonged to the Michigan Central. According to the historic aerials site, the roundhouse was gone by 1962, so the time frame of the photo is between 1955 and 1962.

Thomas Manz posted
During the 1920s and later, Mr. Henry Wilhelm was active as a photographer, with a particular interest in documenting the physical assets of railroads, rather than the trains themselves. Some of his work, as seen here, is posted by Dan Maners' on his excellent website about interlocking towers - IC tower just south of Central Station. Is anyone familiar with Wilhelm's work in the Chicago area?
Jon Roma The tower at Central Station was known as "Weldon", though I'm not sure how it got that name. The mechanical interlocking was upgraded to a pistol grip-type machine in the Forties. The tower probably closed with Central Station's demise as a passenger facility in 1972.
I have seen many spectacular examples of Henry Wilhelm's work, but I'm sure there are many of his images that I have not seen.
David Daruszka There were the Weldon Shops and Weldon Yard. As to the naming of those it was more than likely for an employee or officer of the company. Many mentions are made of the shops in various publications but no attribution to the naming of them are given.
Jon Roma David Daruszka, there is also a Weldon, IL, formerly located on the Havana District of the IC Springfield Division (later part of the Illinois Division). This line is now abandoned.
The presence of a "Weldon" elsewhere on the IC certainly supports your theory that it was named for someone important in the railroad's development.
Susan Kroll Jon Roma, the Weldon Yards still exist. They are west of Soldier Field and LSD.
Jon Roma I know there are yards there, but does anyone still refer to them as "Weldon"?
Alexander Crane Very British looking tower.
Lawrence Smith Is that train by Weldon going up ramp to the scal?
Dennis DeBruler It's coming down the long hill that goes to Congress Street Yard and the freight houses up by the river. The steel girder overpass in the background is part of that connection. The short hill that went down to the passenger station is out-of-frame to the right.
Dennis DeBruler Weldon Tower and the connections to SCAL:
https://industrialscenery.blogspot.com/.../ic-weldon...
I think Weldon Shops has morphed into today's 18th Street Yard:
https://industrialscenery.blogspot.com/.../ic-weldon-18th...
Jon Roma IC people referred to the passenger connection to Central Station as the "short hill" and the freight connection to Congress Street Yard as the "long hill".
Both were rendered superfluous when the IC built the southwest wye connection between the main line and the St. Charles Air Line in the late Sixties, allowing direct moves to and from Markham Yard. I think Congress Street became little more than storage once that was built.
I don't know the exact year that both the short hill and long hill connection were severed, but it would probably be in the early Seventies after the coming of Amtrak and closing of Central Station.

Raymond Storey posted
Dennis DeBruler The comment from another posting:

During the 1920s and later, Mr. Henry Wilhelm was active as a photographer, with a particular interest in documenting the physical assets of railroads, rather than the trains themselves. Some of his work, as seen here, is posted by Dan Maners' on his excellent website about interlocking towers - IC tower just south of Central Station. Is anyone familiar with Wilhelm's work in the Chicago area?

https://www.facebook.com/groups/1270038776414622/permalink/2865519070199910/
Dan Maners website:
http://northamericaninterlockings.com/illinois_9.html
Paul Jevert Weldon tower mechanical "Armstrong plant" with pipelines ! Including upper frame deck for observation of Airline traffic which was removed in 1930's after GRS equipment was installed with enunciator chart above machine and lever room moved below.
Chuck Earley There was a steam house west of the tower that supplied the heat for the tower and also served as snow melters for the switches. Had worked there in 1974- 75

Dennis DeBruler posted two photos with the comment:
This was posted Mar 14, 2016, by NOLA Rails with the comment: "IC Passenger #2021 Chicago IL 1971." The route with the fresh ballast is the south connection to the St. Charles Air Line that would be only a few years old in this photo. On the second photo I added a yellow rectangle to highlight the viaduct of the original Long Hill freight connection that went north past the IC station to Congress Street Yard. One of the IC coach yards is on the right. But I have yet to figure out the exact location and names of the intercity and commuter yards for the IC.
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Two blocks of comments on Dennis' post followed by the seven images at higher resolutions.
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The caption on these four topo maps indicates the date of the Jackson Park Quadrangle. They clarify how the connection used to go North, but now goes South. The detail is not good enough to show that there were short and long connections to the North.
1953

1963

1972

1993

Mark caught a train on the south connection in 1995.
Mark Llanuza posted
Its 1995 I'm at 18th street bridge in Chicago with rare GP-28 leading.

David caught it in the 1970s, and we can see the vacant land in Mark's photo was a yard.
David Charles Lindberg posted
Outbound Panama Limited

Another 1970s view of the southern connection.
Robert Jordan posted
Governor 's Special departs Central Station for Springfield. March 1971.  Robert Jordan photo. Robert Jordan copyright.

Steve Lewandowski posted
Looks like the Sears Tower (old habits never die) is still under construction.

By request, Steve provided an earlier photo on his post
Kevan Davis so this is ICG?
Matthew Chapman Steve Lewandowski Bingo! And that makes this photo all the more interesting -- shows GM&O trains using this route. Must be post-ICG merger?

Dennis DeBruler commented on Steve's post
By analyzing the height of the "tubes" in the Sears Tower, I determined that we are southeast of the tower. So is the Amtrak train on the South Wye and the tracks on the right are replaced by the McCormick Place Busway?
 
I think this photo was taken from the pedestrian bridge we can see in the photo above that was posted by Steve.
Robert Daly posted
Southbound IC suburban train approaching 23rd St, February 1971. Rights of way for the former fifth and sixth tracks that ran as far as 50th St are visible. In the distance the IC mainline tracks cross over the suburban line. The tracks are still in place but this area is now completely covered by the expanded McCormick Place.

We can see that it was a single track that forked off just past Indiana Avenue and started its descent down to the passenger yard.
Jeff Ayersman commented on Dave's post
It used to actually go north around Central Station, but a long term legal battle to address the sheds/warehouses on Indiana Ave around the St. Lukes hospital complex required them to reconfigure the tracks to what you see today. 
Found this in hospital year book.
Here is view looking south in Indiana toward 15th/16th
David Daruszka And the old Michigan Central Roundhouse is still there in this photo.

The freight tracks continue east using this bridge to cross the passenger tracks and to curve north. In this view looking north we can see Central Station in the background.
St. Charles Air Line, 1899 IRR&WC Report posted by Dave Durham

John W. Barriger III Flickr
Jon R. Roma:  This looks south from near IC (Central) Station in Chicago. The tracks to the left lead toward IC's lakefront main. The overhead bridge takes IC's Iowa freight traffic to and from Congress Street Yard (about a mile to the rear of the photographer). This was termed the "long hill". The tracks up the incline to the right constitute the "short hill" and take IC's Iowa passenger trains onto the St. Charles Air Line toward 16th/Clark interlocking. Weldon interlocking tower and the station are to the rear of the photographer.

John W. Barriger III Flickr
[John is probably capturing the detail of this track work.]

John W. Barriger III Flickr
Bob Lalich:  Weldon Tower. Passenger tracks duck under long hill approach tracks to SCAL. Diverging route to the right past signal bridge was the short hill connection to SCAL for passenger trains.

John W. Barriger III Flickr
Jon R Roma:  This view appears to be taken looking south from the pedestrian walkway north of Central Station, Chicago (which is to the right). IC's coach yards are to the left, and the portico of Soldier Field can be seen at the left edge of the photo near the Phillips 66 sign.
[We can see that the "long hill" reaches ground level near the Central Station's waiting room.]

Now I focus on photos going up the short hill.
John W. Barriger III Flickr

John W. Barriger III Flickr
[Somebody has an impressive smokestack.]

John W. Barriger III Flickr
Jon R. Roma:  If I am not mistaken, this view looks north on the IC Iowa Division's "short hill" descending from the St. Charles Air Line toward Central Station (12th Street). The "long hill" tracks at right take freight traffic over the passenger tracks (see viaduct behind signal) that lead to the IC main to the south. Weldon Tower is mid-frame, and the train shed of Central Station can barely be seen behind the yard office.
Bob Lalich:  Agreed Jon.
[We can see near the middle of the photo where the embankment wall for the short hill stops. The short hill was quite shor (i.e. steep).]

John W. Barriger III Flickr
soolinehistory:  With what appears to be a Chicago North Shore & Milwaukee train on the "L".
[John is now up on the St. Charles Air Line looking West. The white building in the far background was the Meadow Gold Butter cold-storage building. It still stands, but its industrial look was heavily camouflaged when it was converted to condos.]

Steve Lewandowski posted
Admittedly, I am an architecture guy. I love the old building shots and depot and platform photos. But, to each his own and history is history. Don't get me wrong. I love the old train photos and can only fantasize what it must have been like to control one back in the day or to even work on them or the line. The memories you guys must have!
I can only guess this is in the ICRR yards but with my little knowledge I can just as easily be wrong. But the image itself, I love it.
Mark Jones Steve Lewandowski, that’s Central Station— IC’s Chicago hub on the right. The Weldon coach yard straight ahead and electric mains to the left— this looks about 1974 right before it was razed— sad. Note all the asbestos shingles placed on the side of the old building —something RR’s routinely did to old depots — very bizarre! I’m fascinated that you got these images at a flea market, and are relying on some of us on here to give you the background — neat!
Dennis DeBruler This is also a good view of the Long Hill, the freight connection to the St. Charles Air Line. The track has been removed, and it looks like that front loader is going to remove the hill.

Bill Molony posted
The Illinois Central's new Green Diamond passenger train departing Central Station in Chicago for a test run to St. Louis - 1936.
Dennis DeBruler What was the name of the tower on the right side of the photo?
Jon Roma Dennis DeBruler, the tower was called Weldon.
Dennis DeBruler Thanks. I've heard of that one. This photo helps me place where it was.
[I added the red rectangle in the aerial photo at the top of these notes and used that with the comment: I can see the embankment for the Long Hill (freight) connection to the St. Charles Air Line that is just to the right of the tower.
https://clearinghouse.isgs.illinois.edu/.../0bwq08050.jpg]
Chuck Earley I got to work that tower in the 70s

William Lloyd In Litchfield,Illinois remnants are still visible.
Ted Richardson I've been told that in 1947 The Green Diamond tested on the Iowa Division from Chicago, IL. to Waterloo, IA. because of the back orders of new Light weight passenger cars was such they would use this as the Land O'Corn. Supposedly they were so intent to do this they built a wheel change out pit next to the Waterloo, IA. Roundhouse. Confirmation of the Pullman Light weight passenger car order being filled shortly canceled this effort and the Green Diamond went South to be the Miss Lou. Beyond a conversation with some Waterloo, IA. IC retired employee's I've not seen or heard anything else regarding this possibility. Has anyone else heard the same? Regards

Dennis DeBruler commented on Bill's post
Jon Roma, are those things with two arms at 90-degrees called cranks? I know these and curved bars are two ways of turning the direction of signalling pipelines.
Jon Roma Yes, those are called cranks.

Jon Roma posted
Via Phil Gosney comes this image by Dick Wallin of Soo Line power for the outbound "Laker" in the afternoon light at IC Weldon Tower, just south of Central Station. The date is May 7, 1963, which happens to have been my second birthday.
The "Laker" only called at Central Station for just about two years between the time Soo left B&O's Grand Central Station in January 1963, and the discontinuance of the "Laker" on January 16, 1965.