What is now Portland was once three cities, Portland, East Portland, and Albina. Their divisions were based on the geography of the area with the major border being the Willamette River. As such a number of bridges have been constructed to keep the different parts of the city easily accessible and to minimize congestion. There are ten primary spans and in this picture you can see the Hawthorne Bridge on the right and the Marquam Bridge on the left.
I took this photo on my way home last night. It has been a long day and I was reluctant to make the stop to take pictures but these sunsets can't possibly last and I don't want to be kicking myself over a fifteen minute delay in getting home. As it turns out it was absolutely worth the brief detour!
Canon 1D Mark IV, Canon 16-35/f2.8L Mark II
23mm, f5.6, 1/30 sec @ 100 ISO