Difference between revisions of "Hongqi Bridge"
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761 feet high / 232 meters high<br /> | 761 feet high / 232 meters high<br /> | ||
722 foot span / 220 meter span<br /> | 722 foot span / 220 meter span<br /> | ||
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| − | [[File: | + | [[File:HongqiDrone24.jpg|750px|center]] |
</div> | </div> | ||
| − | Hongqi Bridge is part of a rebuild of the local road G317 from the reservoir that formed behind the massive Shuangjiangkou Dam. The Daduhe River has many dams across its waters but the earth fill Shuangjiangkou Dam is in a league of its own with a world record height of 312 meters. | + | Hongqi Bridge is part of a rebuild of the local road G317 from the reservoir that formed behind the massive Shuangjiangkou Dam. The Daduhe River has many dams across its waters but the earth fill Shuangjiangkou Dam is in a league of its own with a world record height of 312 meters. The Hongqi Bridge crosses the Jiamuzu River, a major tributary of the Dadu River. |
| − | The | + | The 758 meter long cantilevered 2-lane beam structure has a main span configuration 120+220+120 meters on piers as tall as 172 meters. |
| + | On November 11, 2025 the Western approach spans collapsed from a mountain landslide that was captured on video. The bridge had been closed the previous day due to cracks and deck separation visible on the approach spans. The reservoir was half full at the time of the collapse and the raising water level may have contributed to the weakening of the slope around the bridge piers. | ||
| − | [[File:HongqiPierCompleted.jpg| | + | |
| + | <div style="text-align: center; font-size: 25px;"> | ||
| + | [[File:Hongqi Bridge elevation.JPG|900px|center]]<br /> | ||
| + | Hongqi Bridge Elevation<br /> | ||
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| + | [[File:HongqiDrone22.jpg|750px|center]] | ||
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| + | [[File:HongqiDrone23.jpg|750px|center]] | ||
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| + | [[File:HongqiDronePierSide.jpg|450px|center]] | ||
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| + | [[File:HongqiDroneCrane.jpg|450px|center]] | ||
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| + | [[File:HongqiDroneDown.jpg|750px|center]] | ||
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| + | [[File:HongqiPiersSkyView.jpg|750px|center]] | ||
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| + | [[File:HongqiRiverPier.jpg|750px|center]] | ||
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| + | [[File:HongqiDust.jpg|550px|center]] | ||
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| + | [[File:HongqiDustSettle.jpg|550px|center]] | ||
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| + | [[File:HongqiSlideBegin.jpg|550px|center]] | ||
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| + | [[File:HongqiCollapse.jpg|550px|center]] | ||
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| + | [[File:HongqiSlopeAnalysis.jpg|650px|center]] | ||
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| + | [[File:HongqiSlopeSlide.jpg|650px|center]] | ||
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| + | [[File:HongqiPierCompleted.jpg|550px|center]] | ||
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| + | [[File:Shuangjiangkou HydropowerConst2.jpg|750px|center]] | ||
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| + | [[File:Shuangjiangkou HydropowerConst.jpg|750px|center]] | ||
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| + | [[File:Hongqi bridge site copy.jpg|750px|center]] | ||
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[[File:ShuangjiangkouDamRenderDown.jpg|750px|center]] | [[File:ShuangjiangkouDamRenderDown.jpg|750px|center]] | ||
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| + | [[File:Shuangjiangkou DamPlan.jpeg|750px|center]] | ||
Latest revision as of 04:59, 14 December 2025
Hongqi Bridge
红旗大桥
Baiwanxiang, Sichuan, China
761 feet high / 232 meters high
722 foot span / 220 meter span
2024
Hongqi Bridge is part of a rebuild of the local road G317 from the reservoir that formed behind the massive Shuangjiangkou Dam. The Daduhe River has many dams across its waters but the earth fill Shuangjiangkou Dam is in a league of its own with a world record height of 312 meters. The Hongqi Bridge crosses the Jiamuzu River, a major tributary of the Dadu River.
The 758 meter long cantilevered 2-lane beam structure has a main span configuration 120+220+120 meters on piers as tall as 172 meters.
On November 11, 2025 the Western approach spans collapsed from a mountain landslide that was captured on video. The bridge had been closed the previous day due to cracks and deck separation visible on the approach spans. The reservoir was half full at the time of the collapse and the raising water level may have contributed to the weakening of the slope around the bridge piers.
Hongqi Bridge Elevation
Hongqi Bridge satellite image.
Hongqi Bridge location map.
Daduhe Dams.
