Saturday, August 23, 2025

Begley Street Bridge over Black River in Greenwood, WI

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

Street View, Aug 2023

Nancy Lee Forster posted
This pretty old bridge in Greenwood, WI is supposed to be torn down soon. Not sure what they're putting in its place. Here is a pic I took of it July 28th, 2023 after a thunderstorm with the mammatus clouds above it. I took it with my Canon EOS 4000D.
photo by 📷Marjy Struble Sanders

When I accessed Google Maps on Aug 20, 2025, the bridge was closed.
Satellite

Thursday, August 21, 2025

1908+2022 Cobban Bridge over Chippewa River near Cornell, WI

1908: (Archived Bridge Hunter; Bridge Hunter; Historic Bridges; HAER)
2022: (Satellite)

HAER WIS,9-ART,1--1, cropped
1. LONG VIEW OF BRIDGE, LOOKING SOUTH - Yellow River Bridge, Spanning Chippewa River on County Trunk Highway TT, Cobban, Chippewa County, WI

These were the last two Pennsylvania trusses in Wisconsin that the DOT destroyed. [HistoricBridges]

HAER WIS,9-ART,1--2
2. ELEVATION, LOOKING WEST

"Between 1916 and 1918, the Wisconsin-Minnesota Power & Light Company built a hydroelectric dam four miles downstream from the bridge, putting the site under water. The townships of Eagle Point and Arthur arranged to have the 486-foot span dismantled and re-erected 15 miles upstream near the village of Cobban." [HAER_data]

Photo by Theresa Catherine via BridgeHunter

2009 photo by Steve Conro via BridgeHunter

Nancy Lee Forster posted
One of Wisconsin's oldest truss bridge near Cornell on Hwy 178 will be torn down in 2022. The historic Cobban Bridge is now permanently closed. Take a road trip and take photographs while you can.
photo by 📷David Hoff

Girder bridges need more piers. I'm guessing they are concrete girders because no DOT uses white paint on steel girders. 
Street View, Oct 2024

Wednesday, August 20, 2025

1939,1988,2011 US-40 and 1962,1988 I-95 Bridges over Susquehanna River near Havre de Grace, MD

US-40: (Archived Bridge HunterBridge HunterHistoric BridgesSatellite) Thomas J. Hatem Memorial Bridge
I-95: (Archived Bridge HunterBridge HunterHistoric BridgesSatellite) Millard E. Tydings Memorial Bridge

US-40 Thomas J. Hatem Memorial Bridge


BridgeHunter calls this an arch bridge, but I agree with HistoricBridges that it is a continuous-truss bridge.
Donald Cooper, Apr 2024

Street View, May 2024

2005 photo by Jann Mayer via BridgeHutner_US-40

Postcard via BridgeHutner_US-40 via Boston Public Library

Postcard via BridgeHutner_US-40 via Boston Public Library

HistoricBridges_US-40

I-95 Millard E. Tydings Memorial Bridge


HistoricBridges_I-95

Wikimedia Commons user Famartin via BridgeHunter_I-95

Remember When: Maryland and VA WVA posted
In 1962, two of the ten twin towered bridge piers for the $74,000,000 Northeast Expressway are shown as the rise in the Susquehanna River near Havre de Grace!
Fred Willard: Renamed JFK highway in 1963. Becoming I95 after that


Both


Going upstream from the mouth:
Chiranjib Misra, Jul 2019

Tuesday, August 19, 2025

1970,2020 110mw Robert S. Kerr Lock & Dam on Arkansas River near Sallisaw, OK

(Satellite)

Street View, Sepo 2024

USACE, Tulsa District

The 7,230' (2.2km) long dam has a maximum height of 75' (23m) above streambed. The 900' (274m) long spillway has "eighteen 50- by 44-foot-high tainter gates" with a capacity of 1,542 kcfs. The lock is a standard 600x110 with a normal lift of 48' (14.6m). The powerhouse has four "27,500-kW Kaplan-type units." Each unit can discharge 34,000 cfs at rated capacity and 41,000 cfs at full overload. [USACE_data]

I wonder where the towboat operates that requires a retractable pilothouse.
okhistory, Credit: Oklahoma Historical Society, photo by Jim Edmond

Andy Michel posted 14 photos with the comment: "Some cool photos I took during our tour of Robert S. Kerr Lock & Dam.— with Joshua Cox and Joe Bodolay at Robert S Kerr Lock & Dam 15."
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Andy also included a video.
Screenshot 1

Screenshot 2

Andy Michel posted
Got an awesome tour from Joshua. 
Thank you very much!!!— with Joshua Cox and Joe Bodolay at Robert S Kerr Lock & Dam 15.

Monday, August 18, 2025

1891,1990 Harvard Bridge over Charles River at Boston, MA

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

Boat View, Jun 2019

Boat View, Oct 2014

Bridges Now and Then posted
"Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston, January, 1985. Note the construction barrels and the condition of the bridge. During the period when this picture was taken, the bridge was under a reduced load as a result of inspection after the 1983 failure of the I-95 bridge over the Mianus River in Connecticut. The bridge superstructure was replaced with a similar-looking construction shortly after this picture was created." Markers painted at 10-smoot intervals give the bridge's length 364.4 smoots long, "plus one ear". (Brien C. Neudorfer)

Ian Martin Flickr, Sep 21, 2010
Harvard Bridge and Both Towers
Pru on the right, John Hancock on the left

2020 Photo by Nick Boppel via BridgeHunter
This 2165' (660m) bridge has 25 spans of 51.8' (15.8m).

Sunday, August 17, 2025

2025 1.2gw BC Hydro Site C on Peace River near Fort St. John, BC

(Satellite)

Aug 9, 2025:
CoastReporter
BC Hydro says Site C dam near Fort St. John now fully operational
"BC Hydro's Site C dam and hydroelectric generating station on the Peace River is seen in this handout photo near Fort St. John, B.C., on Nov. 6, 2024. THE CANADIAN PRESS/Handout - Site C Clean Energy Project (Mandatory Credit)"
"With a final price tag of $16 billion, nearly double its initial price tag, the dam is considered B.C.'s most expensive infrastructure project." Construction started in 2015.

sitecproject_reservoir
The reservoir began to fill on Aug 25, 2024, and it took 11 weeks to complete.

The satellite image I accessed on Google Maps on Aug 14, 2025, is older than a year because the river is still being diverted.
Satellite

Slide 4, Nov 6, 2024

The gates for the three higher spillways are obviously Tainter gates. Are the gates for the six lower spillways sluice gates? Unit 6 was the last unit to come online, and it looks like it is the closest one in this view.
Slide 23, Sep 16, 2024

bchydro
The earth fill dam was completed in Nov 2023. It is "a kilometre long, half a kilometre wide at the base, 20 storeys high, and made of some sixteen million cubic metres of sand, clay, and rock."

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