Monday, February 16, 2026

1936+2016 TN-33 Bridge over Clinch River (Norris Lake) in Union County TN

1936: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges)
2016: (Satellite)

This bridge was built by the TVA to make room for Norris Lake.

1939 photo via BridgeHunter
"Design: Two, two-span continuous Warren trusses, each a 505.5-foot through Warren, and 17 steel I-beam approaches on a concrete substructure."

2008 photo by Calvin Sneed via ArchivedBridgeHunter
"One of East Tennessee's longest continuous Warren through truss bridges. View is from south approach, headed northbound. Note curve in approach to bridge superstructure."

Marvin Meyers posted two photos with the comment: "1948 photographs of the old Highway 33 Bridge and the Marina. The bridge was located in Union County Tennessee."
Anthony Frye: I remember as an 8-year-old, would have been 1977, the flood period, coming from Alcoa to grandmas house in Tazewell and couldn’t cross it cause the water was across the south side.
Deb Dalton: I crossed that bridge one night with water flapping the underside of my car.
1

2

Street View, Apr 2009

It looks like the replacement bridge was built significantly higher.
Street View, Oct 2011

It took them a while to build the replacement. The rebar was left exposed for over four years.
Street View, Oct 2015

The replacement is a steel-girder bridge.
Street View, Aug 2016

The new pier near the center of this view shows that they are not repeating the mistake of letting the bridge dip down so that it sometimes became inundated by Lake Norris. I can't remember another time when a mistake was made with the elevation of a full reservoir pool so that a bridge would not stay above the water. But the above post has two comments indicating that the bridge deck would get inundated.
Street View, Oct 2011

1907 US-20 Spring Street Bridge over Galena River in Galena, IL

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

US-20 Overview

Joe Falco posted
Alfred Mueller Collection photo showing the Galena River looking north into town around 1890-1900. I lightly colored and sharpened the original black and white.

Source photo:
GalenaIllinois

Galena Public Library via BridgeHunter

Today's US-20 route is still on the original route.
1913/39 Galena Quad @ 62,500

I could not find a date for the replacement bridge.
Street View, May 2023

Sunday, February 15, 2026

Lanterman Covered, 1895 Cinderella Iron & US-62 Bridges and Dams on Mill Creek in Youngstown, OH

Covered Bridge: (Satellite)
Cinderella Iron Bridge: (Satellite)
US-62: (Satellite)

Overview


Shannon J, Sep 2025

Street View, Oct 2015

Shanon M, Nov 2022

Kaylin M., Jun 2023

Lanterman Covered Bridge


Misty Hightower, Apr 2024

Teresa Mascote, Oct 2023

This bridge is just downstream from the Lanterman Mill. In this photo, the mill is on the left, and the bridge is in the middle.
 M affina, Nov 2022

Cinderella Iron Bridge


acchronicles, Jan 2026

Jeremy Schindorff, Jun 2025

Shannon M, Nov 2022

Oleg Zhuravel, Oct 2025

Richie, Nov 2019

Crystal Marchianda, Jun 2021

South End Spillway creates Lake Newport (Satellite)


Mahendra Patel, May 2021

Lake Cohasset Dam (Satellite)


Tristan Haney, Feb 2024

North End Spillway creates Lake Glacier (Satellite)


吳政魁, Nov 2025

Benjamin “Ben” Taylor, Oct 2022

Ben has done a study in river levels. This is just one month later.
Benjamin “Ben” Taylor, Oct 2022

This is the heaviest flow I found. This is also a good view of the round thing on top of the crest of the dam. I don't understand the purpose of that addition.
Ann, Nov 2025

I presume this is an outlet works for the dam.
Benjamin “Ben” Taylor, Oct 2022

Saturday, February 14, 2026

1969 New Bullards Bar Dam, 350mw Colgate Powerhouse and Burst Penstock on Feb 13, 2026

Dam: (Satellite)
Powerhouse: (Satellite)

The dam is 645' (197m) tall.

The New Bullards Bar Dam inundated the 200' (61m) dam built in 1922. [Warren Frederickson post]

The powerhouse is 350mw. More than 15,000 customers lost power when the torrent of water took out the switchyard.. [4:49 video]

Feb 13, 2026: the penstock broke near the butterfly valve.
8:34 video @ 2:16
Colgate Penstock Failure! Friday the 13th of Feb 2026
It uses Pelton turbines with a combined flow of 3,500cfs.

The torrent of water going down the mountain side then eroded the footings and caused another break in the penstock.
@ 2:53

The penstock begins at the face of the dam and soon goes through a tunnel through granite rock for a few miles to...
Satellite

...the top of a penstock above the Colgate Powerhouse.
Satellite

The penstock drops from about the 1300' contour line down to below the 700' contour line.
1969/77 French Corral Quad @ 24,000

Since the topo map marks the tunnel, I zoomed out to get the whole tunnel.
1969 Challenge and French Corral Quads @ 24,000

Warren Frederickson posted seven images with the comment: "Big mess !"
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2

3

4

5

6

7

Chris Fen commented on Warren's post

Another view of the dam.
blancolirio Screenshot

A view with the spillway in action.
0:12 video

YubaWater
Plans are being made to spend about a quarter-billion dollars to add another spillway. The new spillway will be 31.5' lower than the current one so that the reservoir can be drawn down even further in anticipation of atmospheric river rain storms. This allows water to be released while the lower channel has plenty of capacity to handle the flow.

3:24 video @ 0:56
A look at the damage after a pipe burst at New Colgate Powerhouse

Before:
@ 2:39

After:
@ 2:53

Another before & after:
4:49 video @ 4:17

Four workers had to be rescued by helicopter because the access road was washed out in several locations. One of the workers was flown directly to a hospital. This Feb 14 report says the worker is still in the hospital.
Facebook Reel
"Tunnel and penstock had been off-line for several months of maintenance, without water in them.
"Testing with water was underway Friday. The blowout happened just before 3 PM Friday, sending a torrent of water and hillside debris downhill, across the power generation plant, power substation and into   the Yuba River."
[It appears that it failed the test.]