1976,2008 I-79 Neville Island Bridge over Ohio River at Glenfield, PA

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

The bridge is 4,544' (1,385m) long with a 750' (227m) main span. [BridgeHunter]

This is the northern part of the bridge that goes over the navigation channel in the Ohio River.

Street View, May 2025

Turning around, we see the rest of the bridge to the south because these views are on a ramp that goes down to Neville Island.

Street View, May 2025

pghbridges
"TYPE OF CONSTRUCTION / DESIGN: steel through tied arch; deck girder approach spans and ramps"
This source specifies a length of 725' (221m) for the main span and it has a clearance of 68' (21m)
"The crossing at Neville Island was the final link in the 180-mile north-south Interstate 79."
"The main channel crossing is one of the few places where bicycles are allowed on an Interstate highway. Signs direct cyclists to stay on the shoulder. They are permitted only between the Glenfield (19) and Neville Island (18) exits."

pghbridges has a separate page for the Back Channel Bridge, i.e. the southern part.

pghbridges_back_channel

The back channel bridge gained worldwide notoriety in the winter of 1977. Only five months after a gala ribbon-cutting which opened the final link in the 180-mile Interstate 79, a 10-foot long crack in one of the bridge girders was noticed by a tow boat operator. The $50 million bridge was closed for three months while PennDOT made repairs.

The defects were blamed on an electroslag welding process. Other bridges built during this time, including the 1976 Birmingham Bridge over the Monongahela River, were also checked and repaired. The Federal Highway Administration prohibited further use of electroslag welding on all bridge tension members. Over the past 20 years, conventional processes, such as submerged arc welding and shielded metal arc welding, were used instead. A new technique Narrow Gap Improved Electroslag Welding (NGI-ESW) has been developed.

From the FHWA website: "Electroslag welding is a process used to join thick steel plates in a vertical position. A consumable guide bar is placed between the plates. This bar guides an electrode wire. The plates are joined together by melting the plate edges, the guide bar, and the electrode wire in a pool of molten metal shielded by a flux bath (slag). The flux is kept molten due to electrical resistance to the current passing through the slag."

"With NGI-ESW, the magnitude of electric current applied is much greater than in conventional electroslag welding, and the gap between the plates, and hence the amount of molten material used, is relatively small. This results in a higher welding speed."

More hairline cracks were found in the Neville Island girders in 1999. $1.8 million was budgeted for those repairs. Holes are bored at the ends of the cracks to relieve the strain and prevent the cracks from spreading further.

Pittsburgh Press Roto article, June 5, 1977:

view page - "The Award-Winning Bridge That Failed" by William Allan Jr.

[pghbridges_back_channel]

Facebook Reel

1904-1990,2013 Lost/Stillwell Road Bridge over Muskingum River

(no Bridge Hunter; no Historic Bridges; Satellite)

Doug Chapman posted three photos with the comment: "Who remembers the Stilwell Road bridge over the Muskingum river near Adams Mills off of SR 16. It was removed in 2013 after it's been closed for over 20 years to traffic."

Doug Chapman shared with the comment: "my photos of the Stillwell Rd Bridge before being taken out in 2013. Located in Muskingum County Ohio over the Muskingum River near Coshocton Ohio. Built in 1904, closed to traffic around 1990. removed and not replaced in 2013."

Dennis DeBruler: They left the piers: https://maps.app.goo.gl/VmfjSRih31Fd5X8s9.

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2

3

Since the bridge made it to the 21st Century, I used Google Earth to find it. They already had one span removed in 2012.

Google Earth, May 2012

1877+1931,1978 West Main Street Bridge over Cuyahoga River in Kent, OH

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

Kevin Frost posted
Stone Arch Bridge in Kent, circa 1877.  Work on the bridge began in 1876 when the growth of the town necessitated the replacement of the worn out covered bridge.  The bridge was finished in September of 1877, with Marvin Kent laying the final stone.  Courtesy Portage County Historical Society

Jon Ridinger: A rare look at how it originally looked before the B&O tracks came through in the early 1880s. The portion of West Main the crosses over those lower tracks is technically considered a separate bridge from the Main Street bridge.

[The comments have some newspaper clippings.]

The flour mill is behind the lamp post.

Jonathan Murphy, Sep 2021

A better view of the flour mill. It looks like one can walk across the top of the dam.

Photo by Jon Ridinger via BridgeHunter

Carolina Coastal Railway/NS/Southern Bridge to Nowhere over I-85 near Blacksburg, SC

(Archived Bridge Hunter; Bridge Hunter; Satellite)

The spur to the Reeves - Blacksburg Quarry is out-of-service instead of abandoned. Even though the railroad is not being used, SCDOT had to build a replacement bridge when I-85 was widened.

Street View, Sep 2023

The was the predecessor bridge.

2015 photo by Royce and Bobette Haley via BridgeHunter

The quarry has retained its track, but the railroad has removed its track.

Satellite

It is hard to follow the RoW from the bridge to the NS mainline. But if you zoom out, you can trace it.

Satellite

The fork at Mountain St. is because this industrial spur is a remnant of the Southern branch between Kingville SC to Marion NC. The route kept going south after it crossed US-29. See "Damaged Trestle" for more information about the route that went south from here.

The quarry produces granite aggregate.

The material being mined at our Blacksburg Quarry has a Los Angeles (LA) abrasion test in the low 30’s, signifying a long-term durability and soundness of this material meeting or exceeding the needs of our customers. With the convenient location of our quarry, we serve customer needs in both North Carolina and South Carolina. In addition to the North Carolina and South Carolina Departments of Transportation (DOT), we are also approved for use with the Tennessee and Georgia DOTs.

At the core of Reeves’s operations for the Blacksburg Quarry are several initiatives for protecting natural resources and wildlife. From extensive geologic testing, we know that we have sufficient reserves that will enable us to be an operating facility for decades to come. We are proud to support our local economy as a supplier and employer.

[reevescc]

Damaged/Southern Trestle over Kings Creek near Kings Creek, SC

(no Bridge Hunter; Historic Bridges returns 503; Satellite)

A lady called Johnna posted

Years ago, I used to try to walk over this trestle to get over my fear of heights. I never thought I would see it looking the way it does now. This is a drone shot of an old railroad trestle over Kings Creek, South Carolina.  I believe somebody told me this was a Norfolk Southern track. It’s served a mineral plant. Dimensions: Approximately 200 yards (600+ feet) long or 1,215 feet long and 96-100 feet high and disused since 1990.

If I am incorrect on any of that information, please chime in the comments and let me know. 💪

Jon Tischuk: Still owned by Norfolk Southern, was leased to Carolina Coastal Railway to finish switching operations prior to the mineral plant closing down. Was last used in 2013

Randall Hampton shared

Old Southern Railway

Jeff Trull: Part of the SB line that ran between Kingville SC to Marion NC. Very few miles of this line exist anymore.

A section from Rock Hill to Catawba to Bowater. From Bowater to Kershaw SC is owned by the Lancaster and Chester shortline railroad. A little section outside of Kingville and not sure if any is used north of Blacksburg anymore.

James Nobbe: There is a little still left in and on both sides of Blacksburg SC. It falls under CLNA’s flag but is looooong out of service. Goes to the quarry north of 85 north of town. This is the location of infamous new bridge without tracks. When I-85 was widened a few years back, the old railroad bridge over interstate had to be demolished. Since line is not abandoned, just long term out of service, SCDOT had to build a new railroad bridge over road. So today there is a big new bridge over 85 but has no tracks on it. Bridge over line on US 29 in town is or was recently rebuilt. Even though line is completely covered in kudzu and trees, SCDOT still had to go through all the steps with CLNA far property access same as if it was an in service railroad. Line just disappears along SC 5 a few miles south of town.

I presume this is the "mineral plant" that was referred to above.

Street View, May 2008

The trestle looked intact in 2021.

Google Earth, Oct 2021

It looks like it was damaged by 2024.

Google Earth, Apr 2024

And once it was damaged, it got worse.

Google Earth, Feb 2025

Google Earth, Mar 2025

Enlarged Erie Canal Locks #57, #58 and #59 in Newark/Lockville, NY

#57: (Satellite, lost)

#58: (Satellite, extant)

#59: (Satellite, extant)

Erie Canal Overview

These three locks have been replaced by Lock #28B on the Barge Canal.

Cori Wilson posted five images with the comment:

Historic Erie Canal at Newark, New York ("Lockville")

Newark, New York, was an important hub on the Erie Canal known as Lockville due to its cluster of three locks that helped boats navigate the elevation changes along the canal.

The Locks

Lock 58 (middle lock): Featured in the first photo with the overhead bridge and the steam tug R. H. HEBARD. It had a lift of 8 feet and was never lengthened. The R. H. HEBARD, visible in the lock, was a 40-foot, 13-gross-ton steam-powered screw tug built in Buffalo in 1882 with a crew of three.

Lock 57 (lower lock): Shown in the third photo ("Lower Lock, Erie Canal, Newark, N.Y."). It had a lift of 8 feet, was a double lock, and was also never lengthened.

The second and fourth photos capture everyday canal life and infrastructure in the heart of Newark:

A bustling urban canal view with a low bridge (likely near Main Street), horse-drawn traffic on the towpath, canal boats, and multi-story brick buildings lining the waterway.

The area along Canal Street (right side of the fourth photo) was a commercial center. In 1874, within one block from the Main Street bridge eastward to Charles Street, there were a tannery, foundry, hotel, church, and several warehouses

[The comments appear to have colorized versions of these images and an AI video.]

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[#58]

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3
[#57]

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Jessica Casillo' Williams, Aug 2023

Lock #57 (Lower)

ErieCanal_Newark

Lock #58 (Middle)

Jessica Casillo' Williams, Aug 2023

If they don't manage the vegetation, they are going to lose the lock walls.

Jessica Casillo' Williams, Aug 2023

Lock #59 (Upper)

The southern camber on the right has been filled in.

Street View, Jun 2024

History

The hamlet of Lockville was first settled around 1805 about three-quarters of a mile east of what used to be known as Miller's Basin. It was called Lockville due to the three locks built near the settlement on the original Erie Canal. The three original Clinton's Ditch era Erie Canal Locks 70, 69 and 68 were dismantled for construction of the Enlarged Erie Canal, and were replaced by Enlarged Erie Canal Locks 59, 58 and 57 in 1839-1841. In 1853, the communities of Newark, formerly called Miller's Basin, and Lockville merged to become the present Newark, New York.

The remains of the former Enlarged Erie Canal Lock 59 (also called the Upper Lockville Lock) are located along North Clinton Street across from the current Erie Barge Canal Lock 28-B in Newark, just off N.Y. Route 31. It is a double-chamber, single-length lock built in 1841, and had a lift to the west of 7.88 feet. The remains of the former Enlarged Erie Canal Lock 58 (also called the Middle Lockville Lock) is a few blocks east off Lyons Street, but one of the chambers is roofed over and being used by a scrap company. Volunteers have cleared the other chamber as part of a canal trail project. The lock is a double-chamber, single-length lock, with a lift to the west of 7.93 feet. The former Enlarged Erie Canal Lock 57 (also called the Lower Lockville Lock) was dismantled for construction of the current Erie Barge Canal.

All three Enlarged Erie Canal (Lockville) Locks were never lengthened, as the Canal made a relatively sharp curve, leaving no room for lengthening. In 1890, a proposal was made to reduce the curvature by moving the canal to the north and replacing the three locks with a new larger lock (see the map below). This proposal was never adopted, and the curve remained until Lock no. 28-B was put into use in 1914 with the completion of the Erie Barge Canal.

[ErieCanal_Newark]

This is the proposal to use a combined lock to replace the three locks.

ErieCanal_Newark

This shows how the three locks were replaced by Lock #28B.

1902/48 Palmyra Quad @ 62,500

1930,1990 Guilford Avenue Bridge over I-83 & Northeast Corridor and 1873+1934 Union Tunnel

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

Tunnel West Portal: (Satellite)

Tunnel East Portal: (Satellite)

Union Tunnel is a little east of Guilford Ave. Bridge.

The main span is over Pennsy's Northeast Corridor. It is 174' (41m) long, and the bridge is 321' (98m) long. [ArchivedBridgeHunter]

I learned of this bridge while researching Pennsy's B&P Junction Tower that is a little west of this bridge. I was going to skip another steel arch bridge until I noticed the 1930 date. It looks like a tied-arch bridge, but I have not been able to confirm that. I thought tied-arch bridges were a post WWII development. But this bridge indicates that they were used a few decades earlier.

Guilford Avenue Bridge

Street View, Oct 2023

Street View, Sep 2015

Street View, Nov 2020

Amtrak/Pennsy Union Tunnel

I Googled "Hoffman Tunnel" because it runs under Hoffman Street. The results indicated  thatthe correct name is Union Tunnel. I presume that is because the Penn Station was sometimes called Union Station.

I could not get a street view of the tunnel from the bridge because there is a solid wall on the outside of the bridge blocking the view. This view is from I-83.

Street View, Oct 2023

"The Union Tunnel is about 0.6 miles [1 km] long." [maryland]

"The tunnel consists of two parallel bores: the original bore from 1873 has a single track, while a newer bore from 1934 has two tracks." [wikipedia]

By Unknown engraver - Richardson, James. "Traveling by Telegraph, Northward to Niagara." Scribner’s Monthly, Vol. IV, No. 1, p. 4. (https://archive.org/stream/scribnersmonthly04newy#page/n10/mode/1up), Public Domain, Link

This is a 11:02 railfan video of trains going in and out of the west portal.