5月18日，景海高速公路澜沧江特大桥钢梁吊装顺利完成，桥梁主体工程进入收尾阶段，为景海高速建成通车奠定了基础。
澜沧江特大桥是景洪至勐海高速公路的主要控制性工程，主跨300米，是全国第一大跨径的上承式钢箱拱桥。澜沧江特大桥于2021年1月14日开始吊装，主桥拱上立柱采用钢箱门架结构，施工工艺复杂，工序转换多，精度控制要求高。工程采用缆索吊机进行吊装施工，单节段吊装时间需4个小时，全桥共60个节段，每段的重量都在50吨左右。
景海项目公司组织参建单位开展专项施工预备会，精心准备、科学组织、精密计算，在钢梁吊装之前反复进行模拟试吊测试，确保了此次钢梁吊装的顺利完成。
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