Nanmengxi Bridge

Nanmengxi Bridge
南孟溪大桥
Jinping, Guizhou, China
436 feet high / 133 meters high
394 foot span / 120 meter span
(2005)

Nanmengxi bridge is a tall prestressed concrete beam bridge 436 feet (133 mtrs) high. The bridge is located in the reservoir region of the Sanbanxi Hyroelectric power station across the Qingshui River. The bridge spans over the Nanmengxi Creek with a total length of 271 meters comprised of a three span continuous concrete rigid-frame configuration of 75 +120 +75 meters plus approach spans of 20 meters. The beam is 7.5 mtrs high over the piers and 2.8 meters at the mid-span with a single cell box girder of which the width is 8.1 meters at the top and 4.1 meters at the bottom.

Nanmengxi Bridge Elevation

南孟溪大桥是一座133米高的预应力混凝土梁桥，位于贵州三板溪水电站库区，为跨越南孟溪河的一座特大桥梁，桥梁全长271m，其中主桥为三跨预应力混凝土变截面连续刚构，跨径组合为(75+120+75)m。主墩柱处梁高7.5m，合拢段梁高2.8m。采用单箱单室箱梁,箱梁全宽8.1m，底宽4.1m。

Nanmengxi Bridge and Sanbanxi Dam location map.

Sanbanxi Dam satellite view from around 2004 when the dam was nearing completion.