Pingpo Stone Arch Bridge (平坡石拱桥) is located in Yangbi County (漾濞县), Dali Prefecture (大理州), and spans the Yangbi River (漾濞江). It was once a key component of the old route of the Burma Road (滇缅公路), now part of National Highway 320 (320国道). Below is a detailed introduction to the bridge:
Historical Background
Before the construction of Pingpo Stone Arch Bridge, there existed the Pingpo Vine Bridge (平坡藤桥), which historically served as a crucial passage transforming a natural barrier into a thoroughfare across the lower reaches of the Yangbi River (漾濞江). The downstream area is marked by high mountains and deep valleys, with rugged terrain. In the past, local villagers and traveling merchants relied on bamboo rafts to cross the river. During the late Qing Dynasty and the Republican era, the Pingpo Vine Bridge was an essential local transportation structure, but its flimsy construction led to numerous tragic accidents where the bridge broke, resulting in loss of lives.
Architectural Features
Pingpo Stone Arch Bridge was built in 1973 by the Yunnan Provincial Highway Engineering Corps (云南省公路工程总队). It is a single-span stone arch bridge, measuring 95.2 meters in length, with a clear deck width of 7 meters, a height of 25.5 meters, and a clear span of 50 meters. Its completion significantly improved transportation in the area and became a vital part of the Burma Road (滇缅公路).
Cultural Significance
Pingpo Stone Arch Bridge is not only a major piece of transportation infrastructure but also a bearer of historical and cultural value. It has witnessed the evolution of transportation in western Yunnan and stands as an important historical marker of the Burma Road. Although the bridge is now largely out of use, it remains a notable cultural landmark along National Highway 320 (320国道), drawing the attention of passing travelers and visitors.
Pingpo Stone Arch Bridge is one of Yangbi County's (漾濞县) significant historical relics. It not only reflects the development of local transportation but also carries the collective memory of the people and their aspirations for the future.