Lancangjiang Pipeline Bridge

From HighestBridges.com
Jump to: navigation, search

Lancangjiang Pipeline Bridge
澜沧江油气管线桥
Shanyangxiang,Yunnan, China
614 feet high / 187 meters high
919 foot span / 280 meter span
2012

LancanjiangPipelineView.jpg


Completed in late 2012, the Lancangjiang Pipeline bridge is the third highest pipeline span in the world. The suspension span is one of 3 parallel crossings at one of the narrowest points of the Lancangjiang River east of the city of Baoshan. The nearby railway bridge will be completed in 2014 and is one of the highest railway crossings on earth at 271 meters. The new bridge carries 3 oil and gas pipes on the Burma-China line.

The pipeline span crosses the upper reaches of a reservoir that was formed behind Xiaowan, the 2nd highest concrete dam in the world. The spectacular 958 foot (292 mtr) high double curvature structure holds back a body of water some 787 feet (240 meters) deep along the Mekong (Lancang Jiang), a river with several of the largest and highest hydroelectric dams in the world including the Manwan, Dachaoshan, Nuozhadu and Jinghong. The Mekong River is the only international river in Asia linking 6 countries. The river has more species of fish than any other waterway on earth except for the Amazon. The full reservoir is 164 feet (50 meters) deep beneath the new pipeline bridge. But even under a full lake, the pipeline bridge will still be approximately 137 meters from deck to water surface - far higher then any other pipeline spans outside of Papua New Guinea's Hegigio Gorge Bridge and the Niouc Bridge in Switzerland.

Of course the most impressive of the 3 spans is the spectacular steel railway arch with a soaring span of 342 meters. The two steel truss arch halves were built vertically on either side of the canyon slopes on top of scaffolding. While still in a vertical position, the two halves were then rotated at the arch springing and then lowered down over the gorge where they were connected at the crown.


LancanjiangSus&Arch.jpg

The steel arch truss of the concrete railway bridge can be seen on the left. The upper section of the steel arch will be completed on the temporary scaffolding seen on the upper left slope.


MekongPipeline.JPG


LancanjiangPipelineTrussComplete.jpg


LancangjiangHighDrone.jpg


LancangjiangPipelineDeck.jpg


LancangjiangPipelineInfo.jpg


LancangjiangPipelines.jpg


LancangjiangPipelineTrussSideView.jpg


Lancanjiangbbs.8264.jpg

A late view in 2012 shows a full reservoir beneath the two suspension bridges.


LangcangRailway.jpg

A 2011 construction view of the Lancangjiang River gorge. The suspension pipeline bridge had yet to be constructed and the reservoir had yet to form behind the massive Xiaowan Dam.


LancanjiangDeckConst.jpg


LancanjiangHigh&LowSus.jpg


LancanjiangRailway2015Arches.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayPanorama.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayArchHinges.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelineLonglens.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelineLonglensTruss.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayTopo.jpg

A map that does not show the pipeline bridge. The 3 crossings shown from bottom to top are the railway bridge, the 2-lane road bridge and the 1-lane suspension bridge location that carried the original Silk Road across the Lancangjiang River. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayPlanWide.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayOldBridgeSite.jpg

The foundation of the original suspension bridge can be seen when the reservoir is down to the original level of the river. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySuspension2Lane.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLowerSuspension2015.jpg

Another view of the two original crossings including the 2-lane suspension bridge on the right and the one-lane suspension bridge foundation on the lower left. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayBathtubLines.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLowerHinge.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayArchRust.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayHingeFromBelow.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailway&Suspension2.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLonglensHighline.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelineFullView.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelinePanorama.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySilkRoadArch.jpg

An old archway frames a section of the famous Silk Road. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySilkRoadView.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayHeadquartersFront.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangBridgeSite.jpg

Lancangjiang Railway Bridge construction site. The lower sections of two arch halves can be seen vertically along either slope.


LancanjiangPipelineBridge.jpg

An early computer drawing showing the pipeline bridge deck to be higher then the railway arch when it is actually 84 meters lower in height. The engineers may have decided to reduce the span length from about 400 meters to 280 meters by increasing the angle of the pipelines descending underground to the site of the crossing.


LancanjiangSuspArchSite.jpg

The Xiowan Dam reservoir has not reached the bridge site in this early view from 2011.


LancanjiangRailwaySatellite.jpg

Lancangjiang Pipeline Bridge satellite image.


LancanjiangRailwayWideSatellite.jpg


LancanjiangPipelineBridgeLocationMap.jpg

Lancangjiang Pipeline Bridge location map.


XiaowanDamConstruction.jpg

The massive Xiaowan Dam that is now the second highest concrete dam on earth after the under construction Jinping Dam.


XiaowanDamConstruction3.jpg

Xiaowan Dam during the final stages of construction.


XiaowanDamComplete.jpg

The completed dam with nearly a full reservoir behind it. The water depth is approximately 787 feet (240 meters) just behind the dam.


XiaowanDamLevls.jpg

The water level has not yet reached the full pool height of 1,225 meters though the water can be allowed to go as high as 1,240 meters during floods.

Personal tools