Sunday, September 13, 2026

1894,1938-91 Veterans Memorial Bridge over Menominee River at Koss, MI

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

HAER WIS,38-WAG,1--1
1. VIEW OF NORTHWEST ELEVATION - Wisconsin-Michigan Railroad Bridge, Spanning Menominee River, on County Trunk Highway "JJ", Wagner, Marinette County, WI

Ghost Rails and Forgotten Highways posted
Two Counties Bought the Koss Bridge for $1,250 and Drove Across It for 53 Years
The Wisconsin & Michigan ran its last train on June 30, 1938. Within weeks, Marinette County on the Wisconsin bank and Menominee County on the Michigan bank had split the cost of the railroad's Menominee River crossing - $625 apiece - and opened it to automobiles.
The bridge was already a replacement when they bought it. F. S. Brown & Company of Chicago finished a crossing at this spot in March 1894, and a spring logjam undermined its foundation the following month; the structure in this photograph went up in its place by early November of the same year. Two pin-connected Pratt through trusses, one 162 feet and one 221 feet, built so the pine coming out of the interior would not have to be rafted down the river. HAER's surveyors noted the longer span may be among the longest Pratt through trusses in Wisconsin and Michigan. The town at the north end, Koss, was named for the railroad's auditor and held close to 2,000 people before fire took it in 1900. The railroad itself went into receivership in 1912 and spent its final decades as roughly 62 miles of connecting link between bigger carriers, hauling lumber and iron ore between Bagley Junction and Iron Mountain.
What the counties got for their money was a single-lane crossing tying County Trunk JJ on the Wisconsin side to Shakey Lakes Road on the Michigan side - a bridge built for logging trains, carrying farm trucks and mail cars across a state line. It held that job until 1991, when a new bridge replaced it and the trusses came down. The Historic American Engineering Record photographed it in that second life, which is the only reason you can still look at it. Fifty-three years of road service out of a railroad that couldn't survive its own timber running out is a better return than most infrastructure ever gets.
Has anyone here crossed the old single-lane bridge at Koss before the 1991 replacement went in, or know of another railroad bridge in your county that ended up carrying cars?
5. VIEW OF WEST SIDE OF LONG TRUSS

"Significance: The Wisconsin & Michigan Railroad Bridge is an example of a pin-connected Pratt through truss, a standard design used during the late 19th century. The bridge is unusual, in that it consists of two unequal spans, one measuring 162 feet and the other 221 feet. The long span may be one of the longest Pratt through trusses in Wisconsin and Michigan. In addition, the bridge is one of only a few extant trusses built before 1900. The history of the railroad bridge documents the development and decline of the logging industry in northern Wisconsin and Michigan." [HAER_data]

HAER WIS,38-WAG,1--9
9. VIEW OF NORTH END OF LONG TRUSS

It looks like the replacement bridge uses steel girders.
Minor Images, Nov 2021

Saturday, September 12, 2026

Miami & Erie Canal Locks #16, #17, #18 and #19 near Huber Heights, OH

#16: (Satellite, I could not find the lock, but the Great Miami River Recreational Trail shows were the canal used to be.) Picayune Lock
#17, original location: (Satellite, based on topo map below.)
#17, current location: (Satellite)
#18: (Satellite)

I could not find the exact location of this lock, but Randy's comment below indicates that it was near the south end of Miami County. And that is consistent with the "Hopyard at Lock 16" label.

The lock was a little north of the county line.
M&E189-55.zip via ohiodnr

Lock #17


Four 2021 photos by Craig Doda from the hmdb webpage.
1
 Miami and Erie Canal Lock No. 17 Marker

2
. Miami and Erie Canal Lock No. 17

3
Looking East

4
Looking West

This lock was moved to be part of the Carillon Historical Park. On this map, it was the two upside down V's between Chambersburg and Fishburg Road.
1904/56 Dayton Quad @ 62,500

Lock #18


On the above map, this would be the two upside down V's just south of Fishburg Road.

4 of 8 photos posted by Tim Snyder with the comment: "Visited two locks from the Miami and Erie Canal. The first four photos are from Canal Lock Park in Huber Heights, OH. Sadly, the park has no historical markers for the casual visitor. The next four are from Canal Lock Park in Tipp City, OH, which did indeed have a historical marker that identified the lock as Lock Number 15 on the Miami and Erie Canal. Adjacent to the lock is what appears to be replica canal packet boat in need of maintenance."
Randy Westfall: In Miami co there are still lock 16 which is on private property
14 and 13 on the bike path between Troy and Tipp
12 was in Troy where Kettering hospital is now 11 would of been at eldean rd
Lock 10 was at Farington road 12-10 are no longer standing
Lock 9 Piqua
Lock 8 Johnston farm
7 landman mill road
6 just south of landman mill
The last five are just south of Miami County in lockington
There are still 8 standing in Miami co
1

2

3

4

Lock #19


On the above topo map, the upside down V's are missing for this lock.
Gregg A. Montgomery commented on a post
I own M&E lock 19 south. 700 yards south of Endicott and Powell. Circa 1833
Mark Rogers: Gregg A. Montgomery I'm trying to find the location of lock 19 on a satellite map. I found a survey map of the canal from 1898 which shows the location of locks 17, 18, and 19. However, I can't decipher the scale. If I can see how far 18 and 19 are from one another, I should be able to find the original location of 17. As you know, 17 was removed and rebuilt in Carillon Park. I used to think that 17 was where the Taylorsville dam is, but I'm beginning to think it may have been a little south of there. Would it be possible for you to provide the GPS coordinate for lock 19, so I can find it's location on the map?
Next, I'm going to find lock 11, somewhere north of Troy.
Gregg A. Montgomery: Mark Rogers lock 17 S. was dug out in 1950 and is removed to a Carillon Park it’s gone 18 south is in the city of Huber Heights at the park at Endicott in Fishberg 19 S. is approximately 3/4 of a mile south of 18 in an underdeveloped area, I cannot do coordinates and I want to keep it very private because the ATVs and 4 wheeler guys I don’t want in there

Gregg A. Montgomery commented on his comment
Not restored.

Friday, September 11, 2026

1941 Mahoning Creek Dam on Mahoning Creek near Dayton, PA

(Satellite)

Patricia Hagaman, Nov 2020

USACE, Pittsburgh District posted
It's the Thursday before a holiday weekend, so here's some fun trivia about Mahoning Creek Lake for everyone:
- The dam is 162 feet tall and 926 feet long. It contains 342,210 cubic yards of concrete. 
- It’s a concrete gravity dam, which is engineering shorthand for “being extremely heavy is on purpose.”
- The lake covers about 280 acres at normal summer pool. At full pool, it's 2,370 acres.
- Mahoning can store runoff equivalent to 4.09 inches of precipitation across its 340-square-mile drainage area.
- The dam was completed in 1941. 
- Since completion, Mahoning Creek Dam has prevented an estimated more than $812 million in flood damages as of 2025 - on a $6 million construction budget.
- When it's not mitigating flood risk, the lake has other secondary benefits: boating, camping, hiking, and fishing for species including walleye, muskie, northern pike, channel catfish, crappie and bass.

Nada Quever, Jan 2026

Thursday, September 10, 2026

1834 Sharon Mills/Ford Village Factory on River Raisin upstream of Manchester, MI

(Satellite)


Street View, May 2023

This appears to be an exhibit about water power. On the left is a water wheel, in the middle is a Francis turbine and on the right is a Pelton wheel. The Francis turbine made the water wheel obsolete because it was more efficient. The Pelton wheel is used for high head, low flow dams. That is, the water has to be under high pressure.
12:29 video @ 1:20
Henry Ford's Hidden Power Plant
"Henry Ford virtually invented the GIANT factory, but at the same time, he evangelized tiny, water-powered micro-factories, which he called his Village Industries, and some of them still exist!
"Join me at Sharon Mills, Henry Ford's 13th Village Industries site, which started out as an 1834 Muley sawmill, then a grist mill, before turning into a water-powered auto parts factory in 1928 with the installation of a Francis water turbine.  Today, it's home to the last, working, hydroelectric power plant for these Village Industry sites."
This village factory made cigar lighters and electrical switches.

Wednesday, September 9, 2026

I'm back. (I'm done for now because of a Google bug)

About 2:30pm on Sep 9, 2026, when I tried adding a photo to a post, it did not work. Blogger did the upload, but the photo never appeared in the post. I tried some things to work around the problem such as a different post, a different photo, deleting an existing photo in case I was at some unknown limit, a different browser, waiting a few hours, waiting several hours, etc. Nothing worked. So, I'm giving up for now. I'll do a test each day to see if the photo upload got fixed. When fixed, I'll resume posting.

Update: within 24 hours they fixed the bug. That bug was so bad that they had to fix it. It confirmed my theory that Google doesn't test new versions of their blog software.

Tuesday, September 8, 2026

1962 I-66+US-50 Theodore Roosevelt Bridge over Potomac River at Washington, DC

(Bridge Hunter; Historic Bridges; Satellite)

Boat View, Sep 2014

Metrotrails added
Theodore Roosevelt Bridge completed in 1964, over the Potomac River from the Rock Creek Trail, Washington DC.
Metrotrails shared

HistoricBridges
"This large bridge is noted for its arched, riveted girders which feature a pin and hanger cantilever design."

Several ramps are built over the river on the west end.
Trail View, Jan 2023

trbridge

trbridge

The bridge is being rehabilitated.
trbridge

Monday, September 7, 2026

Miami & Erie Canal Lock #15, Canal Boat and Roller Mill in Tipp City, OH

Lock: (Satellite)
Boat: (Satellite)
Mill: (Satellite)

Miami & Erie Canal Overview

A lock means there is a grade separation of water so a mill next to it makes sense.
Street View, Oct 2016

4 of 8 photos posted by Tim Snyder with the comment: "Visited two locks from the Miami and Erie Canal. The first four photos are from Canal Lock Park in Huber Heights, OH. Sadly, the park has no historical markers for the casual visitor. The next four are from Canal Lock Park in Tipp City, OH, which did indeed have a historical marker that identified the lock as Lock Number 15 on the Miami and Erie Canal. Adjacent to the lock is what appears to be replica canal packet boat in need of maintenance."
Vivian Davis: Canal boat in Tipp is not a replica
Randy Westfall: In Miami co there are still lock 16 which is on private property
Lock 15 in Tipp
14 and 13 on the bike path between Troy and Tipp
12 was in Troy where Kettering hospital is now 11 would of been at eldean rd
Lock 10 was at Farington road 12-10 are no longer standing
Lock 9 Piqua
Lock 8 Johnston farm
7 landman mill road
6 just south of landman mill
The last five are just south of Miami County in lockington
There are still 8 standing in Miami co
1

2

3

4, cropped

The canal boat is behind the mill, and it appears they already did a lot of restoration work.
Street View, Oct 2016

TippRollerMill
The mill building is now a live-music event venue.

The railroad was the B&O/Cincinnati, Hamilton & Dayton.
1904/56 Dayton Quad @ 62,500