Tuesday, November 5, 2024

1857-1967 Crumlin Viaduct over Ebbw River and Crumlin, Wales, UK

(Satellite?, it was over the town of Crumlin and the Ebbw River. Sources said the stone abutments were kept and are visible, but none of them specified where they are. If you find them, please leave a comment.)

ExploringGB, this is one of several photos on this webpage.
It opened in 1857 and was dismantled in 1966. 
"The viaduct was 200 foot [61m] high and ran across the valley for 1650 feet [503m]."

Britain's Photography posted
Crumlin Viaduct in Wales was the tallest railway viaduct in the UK.
The astonishing feat of Victorian engineering was called "one of the most significant examples of technological achievement during the Industrial Revolution.

Neil Morgan commented on the above post
In All Its Glory

James Dawson commented on the above post
You can still see a fine example of this type of engineering in the UK at Bennerley Viaduct, on the Derbyshire/Nottinghamshire Border.

lindahall, Image source: Humber, William. A Practical Treatise on Cast and Wrought Iron Bridges and Girders, as Applied to Railway Structures, and to Buildings Generally. London: E. & F. N. Spon, 1857, frontispiece.
"The Crumlin viaduct is carried by cast iron column members, which support Warren truss girders made of wrought iron."

Exploring GB
Crumlin Viaduct in Wales was the tallest railway viaduct in the UK.
The astonishing feat of Victorian engineering was hailed as 'one of the most significant examples of technological achievement during the Industrial Revolution,' read more 👇

ForgottenRelics
Crumlin Viaduct Handbook, which has a lot of detail about the viaduct.
[After reading just a few sentences, I wondered if this handbook was written in the 1800s. Then I read that it was written in 1860.]

OutOfTheBlueArtifacts, this webpage has a lot of information about the viaduct.

caerphilly
"During 109 years of service, it remained the least expensive bridge for its size ever constructed, the highest railway viaduct in the British Isles and third highest in the world, outdone only by the Aqueduct of Spoleto in Italy and the Portage Timber Viaduct in the United States."
"The completed viaduct was tested in the presence of Colonel Wynne, the Board of Trade Inspector in May 1857, four years after construction began. Six locomotives loaded with pig iron or lead and weighing a total of 380 tons, were run onto just one span of the bridge. When both lines of rails were used, the locomotives were the correct size to cover this span and were driven across at various speeds whilst measurements of deflection were taken."
"In 1962, Crumlin Viaduct was scheduled as being of architectural and historical interest by the Ministry of Housing and Local Government. However, by 1964, this decision had been overruled by British Railways, who argued that demolition was the most sensible course of action, partly because the viaduct required regular maintenance even after the line had closed and partly because the structure was thought to be unsound and dangerous."

1870,1914, 2022 Suspension and Lost Interurban Bridges over Brazos River in Waco, TX

(Archived Bridge Hunter; Historic Bridges; HAERSatellite, 7,587 photos. The piers of the truss bridge are just west of the suspension bridge.)

Bridges Now and Then posted
A look at Waco, Texas' Suspension and Interurban Rail Bridges, 1913. (Waco Texas History)
Joe Breeden: May sound 'corny', but it would be nice to have '''time travel'' to go back & watch the construction of those structures & travel across them too

Street View, Nov 2016
Dennis DeBruler commented on Joe's comment
You can still cross the suspension bridge. https://maps.app.goo.gl/ftYT5wKmnKvCQfb7A

"Significance: When completed in 1869, the 475'-0" [145m] long Waco Suspension Bridge was the state's first major suspension bridge. The first bridge to span the Brazos River, it originally featured two castellated pink brick towers. The span opened as a toll bridge on January 7,1870. Its toll houses feature stepped gable roofs, parapets, and round arched openings." [HAER_data]

HAER TEX,155-WACO,1--23 (CT)

In the foreground, we can see the three piers of the lost interurban bridge. The left pier has been painted and a lookout was built on top of it.
Rick Benz, Jan 2021

The sculpture on the south side is called "Branding the Brazos."
Street View, Jul 2023

HistoricBridges
"This bridge was one of the largest suspension bridge spans in the world when the original structure was completed in late 1869/early 1870. In 1913/1914, most of the original bridge structure was replaced, including the cables and stiffening trusses. As such, a 1914 construction date can easily be argued to be more appropriate for this bridge. The large brick towers appear to be the only major remnant of the original bridge and even they appear to be substantially altered from the original design."

Monday, November 4, 2024

1931+2013 US-60 Ledbetter Bridge over Tennessee River east of Paducah, KY

1931: (Historic Bridges) William Clark Memorial Bridge
2013: (Archived Bridge Hunter; Satellite)

Street View, Oct 2018

HistoricBridges
The 3,036' (925m) long bridge had a main span of 400' (122m).

It is an 1800' (549m) long continuous Warren truss with no verticals. The main span is 900' (274m). It carries about 7,400 vehicles per day. [BridgeHunter]

VeritasSteel
This source specifies a completion year of 2018. But several other sources agree that it was 2013.

John Albert Christeson Jr. posted
US 60 over The Tennessee River just east of Paducah Ky.

John Albert Christeson Jr. posted
US 60 over The Tennessee River just east of Paducah Ky.
[There aren't any streetlights down the middle in this photo as there are in the photo above.]

cjmahan_substructure

cjmahan_erection

cjmahan_erection

1909-2016 Johnathon Hulton Bridges over Allegheny river at Oakmont, PA

1909: (Archived Bridge Hunter; Historic BridgesPGHbridges)
2015: (PGHbridgesSatellite)

This 1,544' (471m) long bridge has a main span of 505' (154m). [HistoricBridges]

Street View, Jun 2012

Street View, Jul 2019

Stuff Thats gone posted
2015 construction picture I shot of the new Hulton Bridge. There’s been plans to take the bike trail from Pittsburgh up to Kittanning. It was a shame they didn’t build a wide enough sidewalk on the new bridge to allow cyclist to easily detour in Oakmont and check out the Oakmont bakery for some quick carbohydrates! 
The old Bridge would’ve been a great pedestrian & bike way, but alas, I’m sure they didn’t want to maintain it

Jan 2009 photo by Brian McKee via BridgeHunter

PGHbridges

The "energetic felling" of the old bridge Jan 2016.
PGHbridges_video

The new bridge evidently uses steel girders.
PGHbridges_video

Photo by National Steel Bridge Alliance via PGHbridges_2015
The haunched girder bridge cost $64.8m.
Four 600-ton strand jacks were used to lift a 282' (86m) x 75' (23m) center section during a 48-hour closure of the navigation channel. The main span is 500' (152m).

Sunday, November 3, 2024

Lost/CM&G Bridge over Kishwaukee River near New Milford, IL

(Satellite)


1 of 11 photos posted by Peter Moore
My pics of what left of the abandoned bridge over the kiswaukee river in new Milford Illinois. Which used to be the Chicago Milwaukee and Gary railroad.  Pics taken on 10-17-24.
Richard Fiedler shared

Craig Holmberg commented on Peter's post
1/76 track profile.

Dennis DeBruler commented on Peter's post
Location: https://maps.app.goo.gl/8T2ewBzgQQNbhnQK7. 1918/18 Kings Quad @ 62,500

We can also see the piers underneath this photo of the former-CB&Q bridge that is just downstream from this bridge.
Wayne DeMunn posted via Dennis DeBruler

1967 Barkley Canal and KY-453 Bridge

(no Bridge Hunter because it is a UCEB; Satellite)

This canal connects the Tennessee River just upstream of the TVA Kentucky Dam with the Cumberland River just upstream of the Barkley Dam.

Street View, Jun 2024

Paducah Drone posted five photos with the comment:
Kentucky and Barkley Lakes are connected by the Barkley Canal. The canal is located in Grand Rivers and is 1.75 miles [2.8km] in length. The canal provides a navigable channel for both commerce and recreation craft moving on the two waterways.
The Tennessee and Cumberland watersheds are connected by the Barkley Canal, which intersects the Tennessee River at mile 25.3 and the Cumberland River at mile 32.8. It has a bottom width of 400 feet [422m] and became navigable in 1967. At minimum pool level, El. 346, the depth of the canal is 11 feet [3.4m]. At this level a barge could clear the bottom of the bridge by 70 feet [21.3m].
[Please access the post to use these hot links.]
Kentucky Lake / Marshall County Tourism
Kentucky Lakes / Prizer Point KOA
Grand Rivers, Kentucky
Patti's 1880's Settlement
Land Between the Lakes
Land Between the Lakes National Recreation Area - U.S. Forest Service
Kentucky Tourism
Kentucky Monthly Magazine
Tennessee River Valley News
David Voorhies: Just be careful in the winter drawdown of the lakes. Barkley Canal can be shallow. My father was delivering a boat in winter, and they were dragging the props there.
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Saturday, November 2, 2024

1971 I-94 Lowry Hill Tunnel in Minneapolis, MN

North Portal: (Satellite)
South Portal: (Satellite)

Historic Minneapolis posted
I-94 Lowry Hill Tunnel under construction. (1969)
[Lots of comments about the bad traffic because they can't add more lanes.]

mspmag
The tunnel is 1,491' (454m) long. "It’s the longest—and oldest—in the state."
The daily usage is 142,000, which is higher than Lincoln Tunnel's 137,000. The usage was 175,000 before COVID.

According to some comments on the above post, either the Episcopal Church or the Methodist Church now has foundation problems. I couldn't determine which church they were talking about in terms of the foundation.
Satellite

Another comment on the post pointed out that they hid the highway for the protestant churches but allowed the Basilica of Sant Mary to see not only a highway, but an interchange.
Satellite

DOT explains that the purpose of the tunnel was indeed to hide the highway.
mndot
"The Lowry Hill Tunnel, constructed in 1969, carries Interstate 94 under local streets in the city of Minneapolis in Hennepin County. The tunnel, of rigid frame design, was constructed in response to concerns regarding impacts to historic and cultural properties in the area. It was designed to allow Interstate 94 to pass beneath the properties and local streets. It is significant as an example of the local impact of and response to highway development and the avoidance of impacts to historic and cultural resources. It is also significant as an example of a concrete tunnel of rigid frame design, which was an uncommon bridge type in the state at the time of construction."
 
mndot via mndigitalLicense: Creative Commons Attribution-NonCommercial (CC BY-NC) 
"Black-and-white photograph of the interior of the Lowry Hill tunnel during construction. This photograph shows the construction of one of the walls of the tunnel, Minneapolis, Minnesota.
"