Friday, April 26, 2024

Calgary, AB: A Pedestrian Bridge over Bow River

(Satellite)

While looking for the "Pathway" bridge in this post, I noticed that this town has a lot of pedestrian bridges over the Bow River! Some of which are quite unique; for example, the Peace Bridge (9,837 photos).

Tanweer Malik posted three photos with the comment: "An interesting and good-looking double-deck bridge over Bow River in Calgary. The upper deck carries Light Rail Transit. The lower deck is for pedestrians. The lower deck passes through a large hole in each pier where it rests on bearings. But the lower deck is also supported by tension hangers connected to the upper deck."
Kyle Ack: This is a very unique bridge, basically an upside down structural system. main structural component of the span is a hollow cast box girder that is at the same elevation as the trackbed and rests between the inbound and outbound tracks. This is unconventional and was done to reduce the overall elevation change as the trackbed crosses the river
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Maybe this is unusual for concrete girder bridges, but it is very common for steel girder bridges.
Tanweer Malik commented on Kyle's comment
I found this online. The diagram explains the deck system.


Peace Bridge
 Asset Reconnaissance International, Jul 2021


Thursday, April 25, 2024

CTA Tower #12 at Van Buren and Wabash (Southeast corner of the Loop) in Chicago, IL

(Satellite)

This view is looking North.
CTA Flickr, taken in 1942, License: Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) 
Electroliner at Tower 12
Today [Jan 21, 2013] marks the 50th anniversary of the end of service on the Chicago, North Shore and Milwaukee Railroad, an interurban railroad known best as the "North Shore Line." The North Shore ran passenger service, entirely with electric cars, at its greatest extent, from downtown Chicago, IL to Milwaukee, WI via the 'L' system (through an agreement that allowed them to use our tracks in the city) and its own tracks, connecting dozens of cities and towns along the way. The earliest incarnations of this railroad's service began in the 1890s and continued through January 21, 1963.
You could literally board a train at Adams/Wabash and ride all the way to downtown Milwaukee, on an electrically powered car the entire way—grabbing a beverage and an "Electro-Burger" for the trip!
To commemorate the date, here's a picture of a North Shore train on the 'L'. Here you can see one of their distinctive "Electroliner" trains—two special trains billed as "America's First All-Electric Luxury Trains"—making a turn from Van Buren to head south onto Wabash on the Loop 'L'. Both Electroliners have been preserved and one of them can be seen (and sometimes ridden) at the Illinois Railway Museum in Union, IL (along with lots of 'L' cars from over many decades).
For more on the history of the North Shore Line, see this Wikipedia article:

The junction was closed the weekend of Sep 30, 2012, to rebuild the trackwork. 2 CTA photos via chicago-l:
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Neither photo above catches the tower because I think they were taken from the tower. Here is a street view of the contemporary tower that was built when the Orange Line was built.
Street View, Jul 2021

The subways removed the "L" trains from the loop except for the Evanston Express during rush hours. After the North Shore Line abandoned service on Jan 21,, 1963, only the Evanston Express was using the junction and there was no need to staff a tower. But after the Dan Ryan, Orange and Pink Lines were built, there were enough trains added to the loop that the tower is now staffed. [chicago-l]


I researched Tower 12 because of this post.
J.J. Sedelmaier posted
May 24, 1953 
Tribune photo
Charles Kronenwetter: What was the cause of the oops?
Scott Greig: Charles Kronenwetter combination of things...a yard motorman at Roosevelt Road had left a brake valve back in the train cut in after using a "cheater" brake handle, that left it in slow release, and the motorman did not make a brake test leaving Roosevelt Road. He approached Harrison Curve at speed, made an application, didn't slow down...the rest is history.
Rex Nelson shared
Michael E. Bond: The single track to the left led to the Congress St terminal which was the original terminal for the South Side L prior to the completion of the Loop in 1897. A few L trains continued to use the Congress St terminal until 1949 when CTA revised L routed. The North Shore Line used the Congress St Terminal for baggage and express from 1949 until the demise of the line in 1963.
Those are North Shore trains in the photo. In 1953, only the North Shore ran on the reverse curves at Harrison. Prior to 1949, North Shore trains were stored on the center track south of Roosevelt Rd. After 1949, when CTA stopped using the Congress St terminal, North Shore trains could be stored on any of the tracks south of Roosevelt Road and north of 17th St junction with the State St subway incline.
A few North Shore trains made a complete circuit around the Loop Outer Track before going to Roosevelt Road. This was for the convenience of shoppers going to Marshall Field's which could be accessed directly from the L on Wabash.
Andrew Roth shared
Jon Roma: Note that in 1953, only the North Shore used the part of the "L" between the south portal of the State St. Subway and Tower 12, so only North Shore trains would have been affected. As the article notes, southbound NSL trains could simply circle the Loop and return northbound, minus the Roosevelt Road stop.

Back when the accident occurred, the "L" did sharp reverse curves to get from alley-running to street running. This topo map is wrong because it doesn't show the still existing original South Side L tracks to their Congress Street Terminal.
1953 Englewood Quad @ 24,000

Jon Roma commented on Andrew's share
From the Chicago Tribune, May 25, 1953.

Jon Roma commented on Andrew's share
From the Chicago Tribune, May 25, 1953.

Wednesday, April 24, 2024

Ed Bossert/State Street Bridge over I&M Canal in Lemont, IL

(Satellite)

MWRD posted
A view looking southwest at the I&M Canal and a bridge at State Street in Lemont, Illinois, on April 16, 1917.
Billiam Nikson: I think that's the old version of the low bridge by the big lemont road bridge that accesses canal bank road..
Take it 4x daily...

Dennis DeBruler commented on Billiam's comment
So this would be the view today, https://maps.app.goo.gl/BvkqyMxwrAf95gcn7

The replacement bridge looks like a concrete girder bridge.
Street View, Aug 2023


Tuesday, April 23, 2024

Apr 21, 2024: CPKC hauls a fire to the firefighters in London, ON

(Satellite)

Normally, the phrase "hot train" means a high priority train. In this case it meant that the contents of five gondola cars were on fire as the train kept moving. The contents were creosote-soaked old rail ties. There were multiple 911 calls from west-side residents as the train rolled through town with flames shooting in the air. I have not been able to determine how many cars were between the crew and the fire in terms of the crew realizing they had a big problem. Nor if the crew size was 1 or 2. Injuries and hazardous materials were not an issue. Damage to an office building (Street View) was a $10,000 issue. Obstructing traffic for 90 minutes was probably another issue.

safe_image for Calls for answers after train on fire rolls through downtown London, Ont.
The train eventually halted at Pall Mall Street and Waterloo Street in central London, Ont., where it took 28 firefighters to knock down the blaze. (Sean Davidson/CBC)

"At one point, 28 fire fighters with 10 trucks were battling the blaze, which took about 90 minutes to bring under control....Somewhere between Strathroy[, where the cars were picked up,] and London is where the fire began." It is being treated as arson. [trains]

1:30 video, Courtesy: London Fire Department

One of the questions being asked is why didn't they stop the train in their yard rather than in a residential district?
1:30 video, Courtesy: London Fire Department

London Fire Department Tweeted two photos with the comment: "Fire crews continue to dose smouldering wooden railway ties at  Adelaide Yard. Using @RosenbauerGroup  T-Rex Aerial Truck."
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Monday, April 22, 2024

1806+1896,1957 Northampton Street Bridge over Delaware River at Easton, PA

1896: (Archived Bridge HunterHistoric Bridges; HAERSatellite)

Historic Bridges rates this bridge as 10+10, his highest rating.

The 560' (171m) long bridge has a main span of 300' (91m). [BridgeHunter_1896]
The main span has a 50' (15.2m) suspended span truss. [HistoricBridges]

Street View, Jul 2019

Significance: The Northampton Street Bridge is one of a few extant eye-bar cantilever bridges in the United States. Its 50'-0"-long central span, supported between two 250'-0" cantilever arms, is carefully disguised by superfluous members so as to appear as a smooth catenary. Its appearance is tastefully balanced between Gothic flamboyance and a spartan machine aesthetic — a piece of urban "structural art." Designed by James Madison Porter III, professor of engineering at nearby Lafayette College and an early advocate of materials testing, this bridge is his most important work. Bethlehem Steel Company repaired the structure to its original design in 1957, after it was heavily damaged by a flood two years previous. The Northampton Street Bridge has been designated a National Historic Civil Engineering Landmark by the American Society of Civil Engineers. [HAER_data]
I'm glad I found information about this bridge, otherwise I would have assumed it was a suspension bridge.

Street View, Jul 2019

Street View, Nov 2021

HAER PA,48-EATO,15--1
1. GENERAL VIEW, LOOKING SOUTH FROM WEST BANK OF THE DELAWARE RIVER. - Northampton Street Bridge, Spanning Delaware River at Northampton Street (U.S. Route 22 Alternate), Easton, Northampton County, PA

DRJTBC
"The bridge was designed and built by Timothy Palmer, one of the foremost bridge builders of his time. Palmer’s covered bridge at Easton endured many floods and storms while other bridges fell. However, by the late nineteenth century, when horse-drawn streetcars were replaced by trolley cars, the old wooden bridge could no longer handle the demands of traffic and a new structure was erected. The new bridge was designed by James Madison Porter III, a graduate of nearby Lafayette College with a degree in civil engineering, who hailed from a family long prominent in Easton and Pennsylvania history. The Northampton Street Toll Supported Bridge sustained major damage during Hurricane Diane when floodwaters, 44 ft above normal water level, topped the roadway of the Northampton Street Bridge on August 19, 1955. Repairs carried out over the next two years made the bridge useable but the flood damage left a readily apparent sag in the center span that remains today. Another series of improvements were completed in the Summer of 2002 and included structural steel repair and replacement, painting, and the replacement and installation of sidewalk decking and new pedestrian railings The bridge is currently posted for a three-ton weight limit and a fifteen mile per hour speed limit." [I wonder if the webpage has been updated since the 2023 rehabilitation and if the bridge is still limited to three tons and 15 mph.]

Bob Dover posted
The Northampton Street Bridge connects Easton, Pennsylvania to Philipsburg, New Jersey. The surprising and appealing feature of the bridge is the decoration of the towers and lampposts. Eyebar chains and composite girders are decorative wherever you find them because the individual components can be shaped into complex geometric patterns. Added to these are elongated, lattice-like finials on the tops of the towers. On the top chord over the middle of the roadway, a frieze displays gilded allegorical figures of Liberty and Prosperity on either side of a heraldic shield, which sits over a gilded plaque reading “1795-1895.” Another gilded plaque on the lower horizontal support shows the significance of these dates, with 1795 being the date of incorporation of the Delaware Bridge Company, and the bridge construction in 1895 marking the centenary of the company. The lampposts are nicely-shaped, frosted-glass globes sitting on decorative black iron bases. The bridge carries two lanes of traffic on a steel mesh deck and has wide sidewalks on both sides, outside of the truss.
I provided an extensive description of a tour of the bridges of the upper Delaware River in Chapter 9 of my book, Bridgespotting Part 2: A Guide to Even More Bridges that Connect People, Places, and Times. There are photos of most of the bridges, including the Northampton Street Bridge, posted on www.bridgespotting.com. [Upper Delaware River Bridges]

Note the diagonal member on the left is an eye-bar that can handle only tension whereas the diagonal member on the right is a built-up beam that can handle compression. HistoricBridges explains that is because the left panel is part of the cantilever arm whereas the right panel is part of the suspended span.
Street View, Jul 2019
The bridge has been rehabilitated several times, most recently in 2023. The rehabilitation included adding colored lighting to the bridge.  Here are five photos supplied by the DRJTBC via HistoricBridges.
1
Hanukkah with moon. Photo Credit: Justin Bowers

2
Easton High School colors. Photo Credit: Justin Bowers

3
Default white color. Photo Credit: Justin Bowers

4
Phillipsburg High School Colors. Photo Credit: Justin Bowers

5
Christmas with drone. Photo Credit: Justin Bowers

The predecessor bridge:
Timothy Palmer

DRJTBC via HistoricBridges

Sunday, April 21, 2024

1917 NS/Southern Bridge over Catawba River near Rock Hill, SC

(Archived Bridge Hunter; no Historic Bridges; Satellite, 578 photos)
 
Derrick Johnson, Oct 2021

Eastern Rails Photography posted
The Norfolk Southern OCS is on the way to Augusta with the Southern & Virginian heritage motors up front as it crosses the Catawba River into Rock Hill, SC on a beautiful April afternoon. 4/2/24

David Bishop, Jul 2021

1941 Spartanburg Quad @ 250,000

Saturday, April 20, 2024

Milwaukee and C&NW Bridge over Fox River in De Pere, WI

(Satellite, see topo map below. It was downstream from the dam.)

Chicago & North Western Historical Society posted
What an interesting bridge!  This one crosses the Fox River (of Wisconsin) at De Pere, Wisconsin.  This is an Ed Selinsky photo taken in April 1958.
Kurt Schlieter: This connected the C&NW on the west side of the Fox river with the Milwaukee Road tracks on the East side. There is still a spur on the west side which goes through DePere from the now CN line to the mill, where this photo was taken from. On the east side, there is a small section of bridge going from the city to the island.

Kim Potaracke commented on the above post
no date

The C&NW was on the west side of the river, and the Milwaukee was on the east side. Since the Milwaukee no longer exists, the bridge is no longer needed.
1956 De Pere Quad @ 24,000