More than just a way across, structures like Shitan Birdge are impressive examples of civil engineering and local landmarks. Make your way there and admire the craftsmanship on show.
If you're trying to figure out what else there is to do after your visit to Shitan Birdge in Xiangtan, you're spoiled for choice. Stop by Yinshan Mountain of Xiangtan. It's conveniently near the modern structure and will give you more insight into the character of this area.