I assume the good ratings in the Bridge Hunter posts are for the replacement bridges, not the truss bridges that got replaced. Where/how did Tennessee get funding for all of these new bridges? Illinois can't deal with Interstate bridges that have a rating of 6 in 2018.
I also found that Calvin Sneed has written a book, and he is working on a sequel. He also has a website: ilovebridgesandtunnels.com.
Five-span truss in McMinnville: (Bridge Hunter built 1930, rehabilitated 1971, replaced 2009; Satellite)
|Global Earth 9/3/2008|
|Global Earth, 8/22/2010|
1/23/2012 has the same image. I assume that is Global Earth's fault and that construction didn't just stop for a couple of years.
10/30/2012 shows the new bridge.
Nathan Holth commented on Bridge Hunter:
The easy thing to remember is that TDOT's policy is to demolish and replace all truss bridges in the state. This was noted in a newspaper article a few years ago. It is extremely disappointing to know that TDOT plans to destroy an entire category of historic bridges, but I am just passing along what I heard.
|Calvin Sneed from NewsChannel9|
[I've noticed that Calvin Sneed has been the primary contributor of the Bridge Hunter photos for these bridges.]
The new bridge has new columnar piers. So reuse of the piers is not the reason they disrupted traffic by building the new bridge after tearing down the old bridge.
|Global Earth, 10/7/2010|
1/23/2012 has the new bridge and a crane is still present to remove the old bridge.
Five-span truss near Spurgeon (Bridge Hunter, 1938, replaced with "concrete tee-beam bridge" in 2010, demolished 2011; Satellite)
Once again, Google Earth shows a delay of the image update.
|Calvin Sneed photo from Bridge Hunter|
|Google Earth, 1/23/2012|
Two-span Rock Island Road (TN-136) over Caney Fork (no Bridge Hunter; Satellite)
|Global Earth, 3/20/1997|
3/30/2005 has the new bridge
One-span TN-286 over Big Hickory Creek (Bridge Hunter, built 1929, replaced 2012; Satellite)
|C Hanchey photo, July 2011 from Bridge Hunter|
|Google Earth, 8/22/2010|
10/30/2012 has the new bridge
Four big spans news article I hope the steel girders are brown because they are Corten. Otherwise, TDOT replaced one rust problem with another.
A one-span bridge that was torn down in 2011 and not replaced because of TDOT's stated policy to get rid of all truss bridges in the state.
The 3-span Beulah Bridge had already been replaced in the oldest Global Earth image of 3/15/1997.