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2014年8月3日,鲁甸地震之后,牛栏江位于鲁甸县火德红乡红石岩村的上游河段双侧严重山体垮塌,导致牛栏江堵塞形成堰塞湖,致使下游800余人生命财产受到严重威胁。堰塞湖应急抢险队迅速行动,在坝体上开挖泄流槽并于8月14日新建泄洪洞,以增加排泄能力,降低堰塞湖水位和溃坝风险。10月3日,泄洪洞开始泄洪,堰塞湖水位随之下降;10月4日晚,泄洪基本完成;10月6日,红石岩堰塞湖完成泄洪,水位降至正常范围。
On August 3, 2014, a serious mountain collapsed on both sides of the upper reaches of Hongshiyan village, Huodehong Township, Ludian County, causing the blocking of the Niulan River and the formation of a barrier lake, resulting in more than 800 downstream people Life and property are seriously threatened. The dammed lake emergency rescue team took prompt action to excavate the discharge chute on the dam and to newly built the flood discharge tunnel on August 14 to increase the discharge capacity and reduce the risk of dammed lake water level and dam failure. On the 3rd of October, the spillway tunnel began to discharge and the water level of the dammed lake dropped. On the evening of October 4, the flood discharge was basically completed. On October 6, the dammed lake of Hongshiyan completed flood discharge and the water level dropped to the normal range.