One-Lane Road/Pennsy Bridge over Mahoning River at Campbell, OH

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

Street View, Oct 2019

Sean Munson Flickr, 2006, License: Creative Commons Attribution-NonCommercial (CC BY-NC) 

It was rather easy to find this bridge because this reel shows that it was heavily skewed. That means that it crossed the river on a rather sharp angle.

Facebook Reel, cropped

1935 US-30 (Lincoln Highway) Narrows Bridge over Raystown Branch Juniata River near Bedford, PA

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

Jackson-Township historical preservation posted
Newly constructed bridge on the Lincoln Highway (Route 30) over the Juniata River, 1 mile East of Bedford in 1941.

HAER PA,5-BED.V,1--5
5. 3/4 VIEW FROM EAST. - Narrows Bridge, Spanning Raystown Branch of Juniata River at Lincoln Hwighway (U.S. Route 30), Bedford, Bedford County, PA

"Significance: The Narrows Bridge is an early example of a concrete arch bridge built on a curving, skewed alignment. This open-spandrel reinforced concrete bridge is the most recent of several at this important crossing, which was on the Bedford-Chambersburg Turnpike before it became part of the Lincoln Highway in the 1916. The Narrows Bridge was listed in the National Register of Historic Places in 1988" [HAER_data]

Today's US-30 is obviously a modern highway. So I got a topo map to try to determine the US-30 route back in 1941. 

1902/1947 Everett and 1910/1947 Bedford Quads @ 62,500

It is rather obvious from the topo map that the Lincoln Highway originally went down today's Pitt Street. I "cruised" that street with street view. I did not find anything specific about the Lincoln Highway like a wall mural, but I did find the downtown was along that road and that it still has some historical buildings.

Street View, Nov 2024

Given the revision date for the Everett Quad, I first thought that the bridge was here.

But when I got the next available topo maps to see how the route of US-30 changed, I wondered if it was here. Note that Pitt Street must have been bypassed between 1968 and 1971.

1968/70 Everett West and 1971/73 Bedford Quads @ 24,000

This street view confirmed that it is the river crossing documented by the 1968 topo map.

Street View, May 2025

Rather than replace this bridge, they rehabilitated it and increased the capacity by building a concrete girder bridge next to it.

According to some comments on ArchivedBridgeHunter, this work was done between 2003 and 2008.

2012 photo by Jodi Christman via BridgeHunter

J.R. Manning caught the dilapidated state of the bridge before the rehabilitation.

2003 photo by J.R. Manning via BridgeHunter

1825-80 US-80 Rooster Bridge over Tombigbee River and 1979 Towboat Incident near Demopolis, AL

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

snopes

The Tombigbee was at a record high river level, so the procedure was to approach the bridge on the slack side, untie the tow and let it pass under the bridge. Then backup the towboat and go under the lift span on the other side of the river, chase down the tow and reattach. When the M/V Cahaba backed up, it did not stay square with the current, and the current twisted the towboat up against the bridge and shoved it under the bridge. The second description in snopes explains Captain Jimmie Wilkerson's "ride" under the bridge. One diesel kept running, and some comments indicated that they were able to finish their delivery. The following photos are screenshots from this video. The video has been used in training meetings to demonstrate the importance of keeping the water-tight doors closed.

James Morgan posted 15 photos with the comment: "I imagine most of you have seen this but for those who haven't -"

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USACE Cross Florida Barge Canal Failure (Inglis, Eureka and Buckman Locks)

Inglis Lock: (Satellite) 1970-1999. [TampaBay]

Lake Rousseau Dam (Satellite) The first dam was built in 1909 for hydropower.  [TampaBay]

Eureka Lock: (Satellite)

Buckman Lock: (Satellite)

Kirkpatrick Dam and Rodman Lake: (Satellite)

Work on the canal began in the 1930s as a WPA project, but funds ran out after three years of work. President Johnson authorized new federal funding in 1964. Environmental and pork-barrel voices became loud enough that President Nixon stopped construction in 1971. "At that point, the project was only 28% complete, with $75 million already invested." [FloridaMuseum]

"The project was not officially killed by Congress until 1990. After that, the lands were turned over to the State of Florida for preservation." [FloridaHistoryBlog]

The abandoned corridor became the Marjorie Harris Carr Cross Florida Greenway, named after the activist who helped stop the project. 

FloridaMuseum

AmericanCanalSociety
The locks were 600' x 84', and 3 of the planned 5 locks were completed. 

FloridaMemory, this is from a detailed map of the canal, but I was unable to save the map.

It is interesting how some lock names have changed.

AmericanCanalSociety

352today

Lake Rousseau Dams

The original dam was built in 1909 to generate electricity for the phosphorous mining operations in the area. Today's dam was built in the 1960s by the USACE as part of the canal's construction.

hmdb
The hydroelectric plant operated 1909-65, and it had a capacity of 7.45mw.

steve prophater, Sep 2019

Eureka Lock

Facebook Reel

Kirkpatrick Dam and Rodman Lake

AnthonyMann Wexford, Jul 2023

World's Largest Wildlife Overpass over I-25 near Larkspur, CO

(Satellite, it has yet to appear on the satellite image. "near the Greenland Interchange between Larkspur and Monument." [codot])

98.5 KYGO posted
The project covers six lanes of I-25 and creates 39,000 acres of land together. The overpass is 204 feet [64m] wide and was $15 million.
https://kygo.com/look-worlds-largest-wildlife-crossing-bridge-on-i-25-south-of-denver-is-complete/

John Mittelstedt: They built it so when housing projects are built on both sides, they'll convert it to an overpass.

Mary Froehle Pucci: John Mittelstedt ummmm incorrect. It’s a conservation preserve that was paid for by John Malone and Ian Griffis. Malone owns the second highest amount of land in the USA.

Scott Lee Harbin: John Mittelstedt can't build on that, has a permanent easement as an open space.

Janei Folz: Not just for wildlife. Now the ranchers can herd their cattle from grazing fields and not have to truck them across I 25.

[There were a lot of comments about who is going to train the animals to find it and even more replies that these crossings have been proven to work in other areas. They start by choosing a natural migration path, and then they put fences along the road to funnel them to the crossing. It is probably easy finding the migration paths by noting where the roadkill is high.]

"The structure is being built for big game animals such as elk, mule deer and pronghorn. The overpass will be strategically located to address the 3.7 mile gap from other wildlife crossings and will complete the wildlife crossing system of underpasses and fencing as a part of the I-25 South Gap project - which improved 18 miles of Interstate 25 from Castle Rock to Monument....The overpass is a critical component of the overall wildlife crossing system that is expected to reduce wildlife-vehicle crashes along this stretch of I-25 by 90%. Prior to the system being built, there was an average of one wildlife-vehicle crash a day in this corridor. While the new underpasses are used by smaller animals, the overpass addresses specific needs for large game animals such as elk. They are known to avoid tunnels and enclosed structures that can’t accommodate their antlers and restrict mobility. They prefer open structures with clear sight lines....This project is one of 19 wildlife crossings in the U.S. Department of Transportation funded nationwide." [codot]

FOX31 KDVR.com posted

The Colorado Department of Transportation has completed construction on a wildlife overpass crossing Interstate-25 near Larkspur. 

(Photo: Courtesy CDOT)

https://kdvr.com/news/local/largest-wildlife-overpass-in-us-completed-over-i-25-near-larkspur-cdot/

kdvr
"The wildlife overpass, which is covered with dirt and vegetation, was completed in less than a year — both ahead of schedule and on budget, according to CDOT. A federal grant provided “the bulk” of the funding for the project."

1911 White Rock Dam on White Rock Creek in Dallas, TX

(Satellite)

Like many dams in Texas and Oklahoma, this dam was built for a water supply.

When I looked at photos of the spillway, I was confused because it looked like there were two different spillways. These aerial photos show that there are two different spillways --- a one at the edge of the lake and another one downstream before Garland Road.

[I lost the credit.]

[I lost the credit.]

Historic Texas USA posted
Spillway Under Construction at White Rock Lake, Dallas (1911)
[The description continues with some platitudes.]
DallasASACE
When Lake Lewisville was built in 1930, the land around this lake was transferred to the parks department. A swimming beach was built. Because of a severe drought, the lake was transferred back to the water department in 1952 and swimming was outlawed. The pump station remained in use until 1964.
The lake was dredged in 1937, 55, 74 and 98. They are in the midst of a feasibility study (accessed Dec 2025) to determine if it should be dredged again.

The "earth-fill structure [is] approximately 2,100 feet [640m] in length and 40 feet [12m] in height." The spillway is 450' (45.7m) wide. [twdb]

This photo catches the upper spillway passing water. I wonder what the workers are doing in the middle of the photo.

Youssef Almkari, Jul 2021

The lower spillway passing water. 

matt karmil, May 2021

Were the workers in the upper-spillway photo above adding these two outlets?

Chad Meis, Jun 2025

A strong flow over the upper spillway.

Marcus Tovar, Apr 2021 [I lost the link]

And a view of the upper spillway from the parking lot.

Poovalagan Jagadeeswaran, Apr 2024

Another view of the lower spillway. Part of the upper spillway is in the right background.

 Paul Samrane, Mar 2019

The earth-filled part of the dam taken from the edge of the upper spillway. The smokestack is part of the pump house that is at the end of the dam.

Joan J, May 2025

Michael Kleiman, May 2025

3:17 video
History of White Rock Lake | Dallas, TX