Yuba County, California Bridges: Union Pacific Bridge across the Feather River

October 2013 (39.16364 Degrees, -121.61284) UP Trestle Bridge

Continuing upstream along the Feather River Bridge is an old Union Pacific Trestle Bridge with concrete piers supporting truss spans over the river. A really big caisson supports the river pier to protect it from debris coming downstream.

I wonder if the bridge was raised at some point and the rings around the piers is where the top used to be? The Union Pacific comes north out of Marysville on a big curve, crossing the river in a westerly direction and then goes north through Sutter County (see Google earth photo below).

On the east side of the river are precast box girder spans supported on steel H piles with reinforced concrete bent caps.

Yuba County, California Bridges: Union Pacific Bridge across the Feather River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

Tokyo, Japan's Bridges: Aioi Bridge across the Sumida River

June 2011 (35.667 Degrees, 139.789 Degrees) Aioi Bridge

Another look at the Aioi Bridge, a four span through truss. Just behind it is the Harumi Big Bridge and several other interesting bridges down the canal on the east side of Tsukishima Island. I never got a chance to photograph these bridges (and many other canal bridges) so I'll have to wait for my next trip to Japan (hopefully, unrelated to any earthquake).

One of the nice things about the Aioi Bridge is that one of its piers sits on the island (or peninsula) of Nakanojima Park (on the left side of the bridge). I assume it's a peninsula since how else could anyone get to it?  It's quite a nice park with gardens and a promenade. Another interesting thing about this bridge is it's a skewed truss. I think skewed truss bridges are bizarre because to accomodate the skew, they have to remove the obtuse corner of the end truss panels. In my office we have spent years trying to understand why skewed bridges behave so strangely without much success.

Tokyo, Japan's Bridges: Aioi Bridge across the Sumida River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Tokyo Japan's Bridges: Aioi and Chuo Bridges across the Sumida River

June 2011 (35.671 Degrees, 139.786 Degrees) Aioi and Chuo Bridges

Looking south on the Sumida River is the Aioi Bridge (on the left) that connects Tsukishima to Koto and the Chuo Bridge (on the right) that connects Tsukishima to Chuo. This part of Tokyo is ringed with artificial islands and the dozens of bridges that connect them.

Tokyo Japan's Bridges: Aioi and Chuo Bridges across the Sumida River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Australia's Bridges: Iron Cove Bridge in New South Wales (2)

March 2011 (-33.859 deg., 151.162 deg.) Iron Cove Bridge (2)

A look from the deck of the Iron Cove Bridge. I like the red lane, which is designated for buses and emergency vehicles. The portal frame is less ornate than the bridge columns. There's still lots of traffic, even with the addition of a second bridge.

Australia's Bridges: Iron Cove Bridge in New South Wales (2) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

Australia's Bridges: Iron Cove Bridge in New South Wales (1)

March 2011 (-33.859 deg., 151.162 deg.) Iron Cove Bridge (1)

The Iron Cove Bridge is on Route 40 between the ANZAC Bridge (to the south) and the Gladesville Bridge (to the north). Planning for the bridge began soon after WWII but the bridge wasn't completed until 1955. It's a series of short through truss spans on ornate, two column bents. 


A few years ago (despite opposition from local residents) the government built a parallel structure (to increase traffic capacity) that didn't match the architecture of it's neighbor. Perhaps that's why only the older structure is shown on most websites.

Australia's Bridges: Iron Cove Bridge in North South Wales (1) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

Alaska's Bridges: Gakona Bridge (1)

December 2002 Gakona Bridge  (lat. 62.301·, long. -145.307·) Tok Cut-Off Road

Alaska's Bridges:: Gakona Bridge (1) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Tanana River Bridge (3)

December 2002  Tanana River Bridge  (lat. 63.317·, long. -142.45·) Alaska Highway

Alaska's Bridges: Tanana River Bridge (3) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Tanana River Bridge (2)

December 2002  Tanana River Bridge  (lat. 63.317·, long. -142.45·) Alaska Highway

Alaska's Bridges: Tanana River Bridge (2) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Gerstle River Bridge

December 2002  Gerstle River Bridge  (lat. 63.818·, long. -144.917·) Alaska Highway

Alaska's Bridges: Gerstle River Bridge by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Big Delta Bridges (5)

December 2002  Big Delta Richardson Highway Bridge (lat. 64.159· long. -145.852·)

Alaska's Bridges: Big Delta Bridges (5) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Big Delta Bridges (2)

December 2002  Big Delta Bridges (lat. 64.159· long. -145.852·) Richardson Highway and Alyeska Pipeline

Alaska's Bridges: Big Delta Bridges (2) by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Alaska's Bridges: Big Delta Bridges (1)

December 2002  Big Delta Bridges (lat. 64.159· long. -145.852·) Richardson Highway and Alyeska Pipeline 

Alaska's Bridges: Big Delta Bridges (1) by Mark Yashinsky is licensed under a Creative Commons Attribution-ShareAlike 3.0 United States License.