My bridge log says the I-girder bridge was built in 2005 and the truss bridge was renovated in 2005 (Movable Bridge Engineering was copyrighted in 2003). I'm guessing the I-girder bridge replaced the bascule bridge, but how did the railroad end up on the existing truss bridge?
The city of West Sacramento has been spending a lot of money on infrastructure, including the Palamidessi Bridge and Overhead (barely seen in the distance) and improving the crossing at Jefferson Boulevard to four highway lanes and a pair of railway tracks (the crossings are called the Sacramento Deep Water Canal Bridges). West Sacramento used to be empty land and industrial parks, but now there are subdivisions on both sides of the canal.
Movable Bridges - Jefferson Boulevard by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.