The six-lane bridge is relatively new, and an arm of the Southern part of what is called the Outer Ring Road. Construction began in 2001, I believe, and it was opened near the end of 2007.
The rest of the photos today give you an idea of what the construction looked like as the towers stood alone, the approach was put out to meet them and the sections of road bed were moved up, piece by piece, by barge and crane over the wide and busy Chao Phraya.
Why was I on the bridge? Ah. Well, that story starts Thursday. Family obligations are keeping me from making a post on the 13th, sorry to say..
The approach roadway in 2001
Another tower view I'll never see in person
Barges bring sections of road bed to be raised by crane
The road bed nears completion
The road bed in place, the bridge is nearly ready to open
The Chao Phraya empties into the Gulf of Thailand at the top of this image