Originally Posted by
transpac
Some recent reports on Thai forums mention "87 %" completion of the "civil works" (structures). Who knows on the rest of the process?
The station(s) at Tha Phra intersection (Phet Kasem and Charan Sanitwang), where the blue line(s) (underground to overhead from Hua Lumphong, and overhead from Bang Sue) overlap is very impressive.
Bird’s-eye view of Blue Line extension’s Tha Phra Station - YouTube
This older video from Dec 2016 probably provides a good overview of the then partially built station. It ends with the western portal of the river tunnel;
Tha Phra station is unique as it is an interchange station for the same line - very rare in the world. Both levels serve the Blue Line, which is a fake loop line. This also means that the Blue Line could be extended further south in the future.