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| Street View, Nov 2024 |
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| 1:33 video @ 0:00 |
Tuesday, May 20, 2025
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Milwaukee Tunnels #46 and #47 near Thorp, WA
#46: (Satellite)
#47: (Satellite)
The railroad on the other side of the river was the Northern Pacific.
While looking for these tunnels, I discovered a preserved hydro-powered grist mill.
I found where to look on this map in DirtyFreeHub. Tunnel #46 is at the bottom to the right of the center. Tunnel #47 is near the center. I included more of the map to the northwest because of the water supply canal that I should research if I can ever find the time.
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| 1958/60 Cle Elum and Thorp Quads @ 62,500 |
Tunnel #46
Sean Rotinski posted two photos with the comment:
Tunnel 46Sadly the CM&PS mark is completely gone from the East Portal, while the 46 remains intact.Interior is in good shapeThe CM&PS is still mostly Legible on the West Portal.I was told by a local that there is a new rattlesnake den on top of one these tunnels so watch yourselves if you go there. We got lucky but we were with a whole convoy of vehicles rolling through as part of the sign installation project.Near Taneum siding
Dennis DeBruler: Location: https://maps.app.goo.gl/EESgkVj5xuXCEyUe8
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Tunnel #47
Sean Rotinski posted two photos with the comment:
Tunnel 47 on our recent sign installation trip. Still in good shape sadly you can Barely make out the CM&PS marking on the East portal faceThe 47 is well marked still fortunatelyNot bad after 116 years though.
Dennis DeBruler: Location: https://maps.app.goo.gl/dxVUbtETJSaXtmoNA
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| 1 West Portal |
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| 2 East Portal |
Monday, May 19, 2025
1889,1973,2022 Keystone Bridge over, and Dam on, Turkey River in Elkader, IA
Bridge: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; HAER; Satellite)
It looks like they also did rehabilitation work in 2022.
Dam: (Satellite)
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| HAER IOWA,22-ELKA,1- -9 (CT) 3/4 VIEW FROM SOUTHWEST - Elkader Bridge, Spanning Turkey River at Bridge Street, Elkader, Clayton County, IA |
"Significance: The Elkader Bridge, built in the second
half of the nineteenth century, is an
exceptional example of American stone
masonry. The bridge has a total length
of 189 feet [58m], having two arches each
spanning 80 feet [24m], making it one of the
longest stone arch bridges west of the
Mississippi." [HAER_data]
At least some of the mill buildings on the left have been converted into a hotel.
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| Street View, Oct 2024 |
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| 2012 Photo by J.R. Manning via BridgeHunter |
I wonder what the "ears" on the right-hand side were for. The river has a stronger flow in this view.
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| Gary B, May 2018 |
It looks like they also did rehabilitation work in 2022.
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| Jason Burlingame, Sep 2022 |
Iowa Road Trip posted four photos with the comment: "At 346 feet [105m] long, the Keystone Bridge in Elkader, Iowa, is one of the largest twin arched keystone bridges west of the Mississippi River. It was originally built in 1889 from locally quarried limestone. Brian Abeling / Iowa Road Trip"
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1886+1909 CSX/B&O Bridge over Susquehanna River at Perryville+Havre de Grace, MD
1886: (Archived Bridge Hunter; Bridge Hunter)
1909: (Archived Bridge Hunter; Bridge Hunter; Historic Bridges; HAER; Satellite) |
| Erika Quesenbery Sturgill posted On May 5, 1886 the first passenger train on the Baltimore & Ohio Railroad passed through Harford and Cecil Counties according to Rising Sun’s official historian the late William “Bill” McNamee. Darren Reynolds shared |
This 6,109' (1862m) long bridge has two 520' (159m) spans. The western part has a Pennsylvania through truss. The eastern part has a Pennsylvania deck truss. Long deck trusses are rare. [Historic Bridges]
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| HAER MD,13-HAV,4--12 12. GENERAL VIEW OF THE WESTERN PORTION OF THE BRIDGE. IT CONSISTS (LEFT TO RIGHT) OF SIX PRATT DECK TRUSSES, A PENNSYLVANIA THROUGH TRUSS, AND TWO MORE PRATT DECK TRUSSES. THE AERIAL VIEW IS FROM THE SOUTHWEST - Susquehanna River Bridge, Spanning Susquehanna River, Havre de Grace, Harford County, MD |
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| HAER MD,13-HAV,4--6 6. AERIAL VIEW OF THE EASTERN THREE SPANS OF THE BRIDGE FROM THE NORTHWEST. FROM LEFT TO RIGHT THE SPANS ARE; A PENNSYLVANIA THROUGH TRUSS, A PENNSYLVANIA DECK TRUSS, AND A PRATT DECK TRUSS |
A 100' (30m) tall gantry and falsework was used to replace the 1886 bridge with the 1909 bridge.
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| eBook |
Unfortunately, the falsework collapsed under the weight of a coal train. Fortunately, no one was injured.
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| eBook |
Sunday, May 18, 2025
1907 NS/L&H, NS/CNJ and 1901 LV Bridges over Delaware River at Phillipsburg, NJ
From north to south:
L&H: (Archived Bridge Hunter; Bridge Hunter; Historic Bridges; Satellite)LV: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; HAER; Satellite, the pin is correct, but the photos are of the L&H bridge.)
Delaware Canal Diversion Dam: (Satellite)
Lehigh & Hudson Bridge
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| Thomas Dorman posted Lehigh & Hudson River bridge over the Delaware River, 10 May 2025 [The Delaware River has joined the May 2025 Flood. The canal diversion dam on the Lehigh River that we see under the left span is almost covered. Below is a normal river level.] |
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| lN10 Fit, Aug 2023 |
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| Street View, Aug 2024 |
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| HistoricBridges_L&H |
One does not notice that the truss line is bent in the elevation views.
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| Loretta Killian via ArchivedBridgeHunter_L&H |
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| Archived Panoramio via ArchivedBridgeHunter_L&H, Adam Elmquist |
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Central New Jersey Bridge
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| Thomas Dorman posted Central Railroad of New Jersey bridge over the Delaware River, 10 May 2025 |
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| Photo by Owl's Flight Photography via BridgeHunter_CNJ The NS/CNJ bridge is on the right. The Aban/LV bridge is on the left, and the The NS/L&H bridge is in the right background. [This is the only photo I could find with a good view of the CNJ pier so that you can compare the river level with Thomas' photo above.] |
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| 2020 Photo by Geoff Hubbs via BridgeHunter_CNJ Span over Delaware Canal looking northwest |
Lehigh Valley Bridge
The CNJ and L&H bridges are in the background.
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| 1983 Photo by Doug Lily via BridgeHunter_LV |
"Significance: This structure occupies the piers of the first railroad bridge to cross
the Delaware River at Easton. It is also notable for its fish-belly
deck trusses, an unusual variant of the Pratt design." [HAER_data]
This makes it obvious that it is a pin-connected truss.
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| 2020 Photo by Geoff Hubbs via BridgeHunter_LV Span over Delaware Canal looking northwest |
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| HAER PA,48-EATO,14--1 1. Overview, from west bank of Delaware River, looking northeast. - Lehigh Valley Railroad, Delaware River Bridge, Spanning Delaware River, south of Lehigh River, Easton, Northampton County, PA |
NS/Southern over CSX/Piedmont & Northern over Middle Tyger River at Lyman, SC
(no Bridge Hunter; no Historic Bridges; Satellite)
Piedmont & Northern became part of Seaboard Coast Line (SCL) in 1969. That was two years after SCL was formed by merging Seaboard Air Line (SAL) and Atlantic Coast Line (ACL).
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| Larry Curtis Hines posted Norfolk Southern on top. CSX underneath and Middle Tyger River underneath. Only place I know of in this area of South Carolina. Duncan/Lyman SC. Matt Yukish: Then CSX tunnels under NS in Spartanburg right near the Amtrak Station |
To find the satellite location, I first followed the railroad routes on this map to see where they intersected. And this map was my source for the historical railroad names.
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| 1957/59 Greer Quad @ 62,500 |
Saturday, May 17, 2025
1956 I-95/PA+NJ Turnpike Bridge over Delaware River near Florence, NJ
(Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)
I knew the Pennsy Turnpike was I-76 in the Pittsburgh area. I didn't know where the turnpike crossed the Delaware River so I followed I-76 east across the state. When I found myself down in Philadelphia on the Walt Whitman Bridge, I knew that the turnpike must divert to some other Interstate in the east. So I found this map and determined that it goes from I-76 to I-276 and then to I-95 just before the river.
This arch-truss bridge has a length of 6571' (2km, 1 1/4 mile) and a main span of 682' (208m). [BridgeHunter]
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| Photo from Wikimedia Commons via BridgeHunter |
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| Metrotrails posted PA Turnpike bridge seen from the Florence NJ side, Delaware River Metrotrails shared |
I think it is more accurate to call it a continuous truss instead of an arch truss. I wondered why Historic Bridges didn't document this bridge because Nathan is better at identifying a continuous truss. So, I took a closer look at a gusset plate. It uses bolts instead of rivets. Bolts are Nathan's criteria for a modern bridge instead of a historic bridge. This bridge must be bleeding edge in terms of using bolts. You can see it is a transition of technology because it uses rivets instead of welds to build the beams.
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| Street View, Sep 2023 |
I knew the Pennsy Turnpike was I-76 in the Pittsburgh area. I didn't know where the turnpike crossed the Delaware River so I followed I-76 east across the state. When I found myself down in Philadelphia on the Walt Whitman Bridge, I knew that the turnpike must divert to some other Interstate in the east. So I found this map and determined that it goes from I-76 to I-276 and then to I-95 just before the river.
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| paturnpike |
Just two lanes in each direction carries the east/west traffic of the turnpike and the north/south traffic of I-95. I confirmed that they squeeze three lanes down to two before the bridge. I wonder how much congestion that choke point causes.
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| Satellite |
1895c1986c Lost/Monon and 1890,2011 Tioga Road Bridges at Monticello, IN
Monon: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)
The US-421 Bridge had a lot more character back then.
Note the road bridge behind it. And this image clearly shows that the truss was pin connected.
Darin Patrick posted four photos with the comment:
Dear Friends. Happy St. Patrick’s Day! Today often reminds me of my youth and high school track practice.And our annual St. Patrick’s Day plunge off the Monon Bridge!During my illustrious high school track career of the mid 80’s, on St. Patrick’s Day the track team would run down to the Monon rail line bridge that crossed the Tippecanoe river just north of Highway 421 coming into Monticello (see photo 4).The Sportsman Inn can been seen in the far left of the Photo.The Plunge participants would leave the track, run 1.5 miles down to the bridge, leap off the top, then run back to the high school. Oddly enough this annual practice was coach approved. As Solomon said, with every time there is a season, and with every season there comes changes in coaching practices…lolBut as we used to say on the run back to the high school…. May misfortune follow you all the days of your life, but never catch up!Happy St. Patrick’s Day!I took these photos some years later, before they demolished the bridge. Enjoy the view.
Darin Patrick shared with the comment: "Happy St. Patrick’s Day. Monon rail fans."
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The US-421 Bridge had a lot more character back then.
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Note the road bridge behind it. And this image clearly shows that the truss was pin connected.
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| BridgeHunter |
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| 1910 Postcard via BridgeHunter |
Tioga Road Bridge
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| 2013 Photo by Tony Dillon via BridgeHunter, cropped |
Note the railroad bridge behind it.
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| 1910c Postcard via Bridge Hunter |
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| HistoricBridges When this was restored in 2011 as a footbridge, it recreated the original ornamentation and railings. I added the label "bridgeRare" because Nathan says Whipple truss bridges are rare, especially multi-span bridges. |
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| Paul Fischer, Dec 2012 |
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| Street View, Oct 2023 |
Bonus
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| Neil Riley commented on Darin's share Would this be the same bridge? Pictures from when my father was a remc lineman that went to white county to assist after tornadoes in the early seventies. Dennis DeBruler: Neil Riley Judging from the piers and girders, this looks like the TP&W/Pennsy bridge, https://maps.app.goo.gl/oaLyaqpvkZ9MFCRH9. |
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