This bridge across the confluence of the Lú and Tàchōng Rivers is 5km from the western edge of town. One of the 10 oldest in China, the bridge features 17 arches, so many that it took two periods of the Qing dynasty to complete the project. To get here, take minibus 4 from Jiànshuǐ's second bus station (¥2). Note that you have to ask the driver to tell you where to get off and then point you in the right direction.
Bus 4 continues to Huánglóng Sì (黄龙寺), a small temple.