Not much remains of the original Qing dynasty era defensive fortifications of Tainan 台南. The Japanese tore almost everything down in a bid to modernize the city in the early 20th century. Four of the original gates survive in some capacity, among them Xiǎoxīmén 小西門, the small western gate. More formally known as Jìngbōmén 靖波門 (and commonly romanized as Jingpo Gate), it was dedicated in 1788, the 53rd year of the reign of the Qianlong Emperor, and bears the inscription: 乾隆五十三年, literally “Qianlong 53 year”). It is the youngest of the three surviving inner gates of the old city.
Jingpo Gate was originally located far to the west (hence the name) near the traffic circle at the intersection of Xīmén Road 小西路 and Fǔqián Road 府前路. During a road widening project in the 1970s it was moved to its present location next to what remains of Xiǎodōngmén 小東門 and some of the ruins of Tainan’s old city walls on the main NCKU campus in East Tainan 台南市東區.
As with many of my posts about historical obscurities in Tainan I am indebted to the excellent Tainan City Guide. It has no dedicated entry for Xiaoximen but you can read a little about it in posts on the Great Eastern Gate and the old city walls.