Sunday, July 5, 2026

1831 Wisconsin Avenue/High Street Bridge over C&O Canal in Washington, DC

(Bridge Hunter; no Historic Bridges; Satellite)

C&O Canal Overview

Street View, Oct 2024

Zooming out for more context.
Street View, Oct 2024

A view from when there was water in the canal.
Street View, Aug 2021

Bob Dover posted
The High Street Bridge, now renamed the Wisconsin Avenue Bridge, is the oldest bridge in the District of Columbia.  The bridge was constructed in 1831 to carry the Georgetown High Street across the newly constructed C&O Canal. Even though it carries busy vehicle and pedestrian traffic on what is now Wisconsin Avenue just a block from M Street, one of the busiest thoroughfares and shopping districts in the city, its historic importance is known to few DC residents, and even fewer tourists and visitors. There is little car traffic in this area, because the streets are not through streets, and there is very little public parking available in the narrow sliver of land south of the canal. Even cars and pedestrians crossing the bridge are unlikely to notice that it is historic, because it is a sub-structure arch bridge with no superstructure above the deck.
The only way to view the bridge is to walk along the C&O Canal towpath beneath the arch, and the early date and historic importance of the bridge will become immediately apparent to even casual
observers. The sandstone blocks range in color from tan to orange, with many of them blackened by decades of weathering and burning of coal. On the western side of the bridge, the block above the keystone identifies John Cox as the Mayor of Georgetown, and James Dunlop as Recorder. The keystone below this block is inscribed with the construction date of 1831. None of these inscriptions are easy to read from the towpath, but they can be read with binoculars or a telephoto camera lens.
The obelisk on the northwest corner of the High Street Bridge also deserves a visit. This monument was erected in 1850, to commemorate the completion of the C&O Canal to its western terminus at Cumberland. The obelisk itself is only about five feet high, but sits on a square, white marble base that is also about five feet high. The base is engraved, on all four sides, with the names of the engineers, directors, and other officials associated with the construction of the canal.

When I looked for the obelisk, I found construction activity. I assume the obelisk will be replaced after the construction is done.
Street View, Dec 2024

When I looked at older views to find the obelisk, I went back to 2018 because that was before they did the retaining wall work on the south side of the canal.
Street View, Oct 2018

Saturday, July 4, 2026

Aban/B&O #5 Tunnel near Claysville, PA and US-40

West Portal: (Satellite, this link has photos.)
East Portal: (Satellite)

Bridges & Tunnels by Sherman Cahal posted four photos with the comment:
This is Tunnel No. 5 of the Baltimore & Ohio Railroad’s Wheeling-Pittsburgh Subdivision. Completed in 1857 for the Hempfield Railroad, it remained in active railroad service until 1985, when the Baltimore & Ohio Railroad sought to abandon the line because of declining freight, particularly coal traffic.
A portion of the former rail corridor has since been converted into a rail trail west of the tunnel. However, the reuse of Tunnel Nos. 4 and 5 has been delayed by falling brickwork in one tunnel and an unresolved dispute with a private landowner.
🔗 More photographs and the full history are available through the link in the comments. A visit helps support Bridges & Tunnels's ongoing work documenting these places through research, photography, and preservation-focused storytelling.
Bridges & Tunnels by Sherman Cahal:
For more photographs and the full history, visit Bridges & Tunnels, an independent, ad-supported website that has been documenting bridges, tunnels, and other infrastructure for 20 years. Every visit helps keep this work going by supporting travel, research, photography, and website hosting.
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1964/66 Claysville Quad @ 24,000

While looking for the tunnel, I noticed the "Old National Pike." Sure enough, US-40 and I-70 go through here. US-40 Overview
TopoMapExplore

1958

Friday, July 3, 2026

Pedestrian Bridges over Cedar River in Charles City, IA

1906-2008: (Archived Bridge Hunter returns 503; Bridge Hunter; Satellite)
2010 Replacement: (Satellite)
1910-2018: (Archived Bridge Hunter returns 503; Bridge Hunter; Satellite)

1905-2008 Suspension


This bridge was destroyed by a flash flood on Jun 8, 2008.
Postcard via BridgeHunter

Postcard via BridgeHunter_1906

I wonder when the additional bracing was added. Note that every third suspender was rigid pipes with diagonal bracing instead of cables. I presume this was done to reduce lateral sway in the deck. I can imagine that the thin deck originally moved too much for pedestrian comfort.
2007 photo by Jason and Birgit Smith via BridgeHunter_1906, cropped

2007 photo by Jason and Birgit Smith via BridgeHunter_1906

The replacement was opened on Oct 25, 2010. The replacement has trusses to stiffen the deck.
Andrea Strauss posted
Pedestrian bridge across the Cedar River - Charles City, lowa.

Street View, Jul 2021

1910-2010 Closed-Spandrel Arch


2013 photo by John Marvig via BridgeHunter_1910

2013 photo by John Marvig via BridgeHunter_1910

Evidently, it was built for an interurban.
Roger Puta photo scanned by Marty Bernard via BridgeHunter_1910

The only image I could find of the 2018 replacement was a shadow of the bridge.
Satellite

Thursday, July 2, 2026

Trail/Milwaukee Renslow Trestle and Johnson Creek Tunnel near East Kittitas and Boylston, WA

Trestle: (Satellite)
Tunnel: (Satellite)

Looking East:
Street View, Jun 20223

John Harker posted four images with the comment: "This scene was photographed on June 30th 1965, looking up from Boylston Road east of East Kittitas, Washington.  A Milw east bound freight with EF-5 Box motors E39 B-C-D-A and a GP9 was crossing Renslow Trestle (EE-320), climbing a 1.6% grade for about five miles to Johnson Creek Tunnel just east of Boylston.  A Milw Coast Division 1964 employee time table, a track profile and a USGS topo map are included for reference.  No photographer was listed.  John Harker image scan and editing from an original Kodachrome slide."
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West Portal:
Franklin Wirtz, Aug 2022

East Portal:
Franklin Wirtz, Aug 2022

In addition to trestles and tunnels, the Milwaukee had to build a lot of cuts and fills. 
Cut:
a z, Jun 2020
a z, Jun 2020

And this is what the fill and cut looks like on a topo map.
1953/57 East Kittitas Quad @ 24,000

Once you know what to look for, the fill and cuts are easy to find on a satellite image. The two blue dots are the locations of the "a z" photos above.
Satellite

Wednesday, July 1, 2026

1913 (CM+BNSF)/Milwaukee Judith and Indian Creek Trestles between Lewiston and Denton, MT

Judith Trestle: (Archived Bridge Hutner; Bridge Hunter; no Historic Bridges; Satellite)
Indian Creek Trestle: (Archived Bridge Hutner; Bridge Hunter; no Historic Bridges; Satellite)

CM = Central Montana

By 1913, between Lewiston and Danvers, MT, Milwaukee built the Judith Trestle, Indian Creek Trestle, Sage Creek Trestle and Sage Creek (Hoosac) Tunnel.  That route is now operated by Central Montana Rail. The route is also used by the Charlie Russell Chew-Choo. The Dinner Train features western entertainment including a staged train robbery. They also operate a North Pole Adventure Train.

CM/Milwaukee Judith Trestle


"The first trestle the train goes over is the Judith River Trestle. This 33-span bridge is 138 feet [42m] high and 1,953 feet [595m] long. The trestle was severely damaged in the spring of 2011 and was approved for a five million dollar grant for repair which took place in 2014." [MontanaCowboyFame]

montanatom1950 via ArchivedBridgeHunter_judith via Flickr

CM/Milwaukee Indian Creek Trestle


"Indian Creek Trestle, the second trestle on the Charlie Russell Chew Choo, is a 22-span bridge that is 150 feet [46m] high and 1,303 feet [397m] long. It may be seen just off the Danvers gravel road." [MontanaCowboyFame]

2015 photo by David Jones via BridgeHunter_indian

Tracy Scott posted
The Indian Creek Trestle was originally part of the route constructed by the Chicago, Milwaukee, St. Paul and Pacific Railroad during its expansion across Montana in the early 1900s. This line required numerous major bridges and trestles to cross the deep coulees and river valleys of the Judith Basin region. This trestle is located in the rugged coulee country west of Lewistown in Fergus County. It carries the former Milwaukee Road line, now operated by the Central Montana Rail, across a deep drainage carved by Indian Creek. At 1303 feet long, it was built in 1912-1913. The line remains one of the few surviving segments of Milwaukee Road trackage in Montana still carrying freight traffic today. Central Montana Rail continues to serve agricultural customers throughout the Judith Basin.


Tuesday, June 30, 2026

1856,1963,2003,2017 Carrollton Covered Bridgfe over Buckhannon River near Phillippi, WV

(Archived Bridge Hunter; Bridge Hunter; Satellite)

While studying the Philippi Covered Bridge, I learned about this one.

"Built 1856; rebuilt with concrete beam deck 1963; rehabilitated 2003, heavily damaged by arson August 10, 2017; reopened Sept. 14, 2017 with exposed superstructure" [BridgeHunter]

2011 photo by Brian McKee via ArchivedBridgeHunter

2011 photo by Brian McKee via BridgeHunter

2015 photo by bill Eichelberger via BridgeHunter

Aug 10, 2017 photo via BridgeHunter, Credit: The Barbour Democrat (newspaper) Facebook Page

Same as above photo

2019 photo by Jack Schmidt via BridgeHunter

This shows the concrete beam deck that was added in 1963.
2019 photo by Jack Schmidt via BridgeHunter

Mike Cunningham commented on a post and W. Va. Dept. of Transportation via BridgeHunter

Monday, June 29, 2026

1945,2010 Ben Sawyer Bridge over Atlantic Intracoastal Waterway near Charleston, SC

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

The swing span was replaced on existing piers in 2010. [ArchivedBridgeHunter]

Paula Marie Warnick posted 0:27 video @ 0:08
The Little Boat that Could

They are making sure that it will be wide open by the time the sailboat gets to the bridge.
@ 0:20

It looks like the bridge is high enough to clear commercial barge traffic.
Emmett LaHay, Jul 2023

Steve Wasser, Mar 2018

So most boats can't block rush hour.
Charles Shoemaker, Apr 2017

Hugo 1989:
BridgeHunter

NOAA via BridgeHunter

Photo by Daniel McFarland via BridgeHunter