With the dust settled on a bidding process, the "vanguard" of a major water conservancy project in Beijing has officially taken office. In 2026, a key supporting project with a total investment of over 6.2 billion yuan - the construction of four roads for the relocation of Erdaohe Reservoir - has completed bidding. Beijing Chengjian Huasheng Transportation Construction Co., Ltd. has finally won the bid, paving the key way for the construction of the "highest dam in Beijing" in the future, and also marking a more specific and rapid implementation stage for the construction of the flood control safety network in the Beijing Tianjin Hebei region.

Why spend 6.2 billion to change roads

This huge investment is not for building the reservoir dam itself, but to solve a "happy problem" caused by the construction of the dam. As a key water conservancy hub project promoted by Beijing, Erdaohe Reservoir is expected to be completed by the end of 2030. After the reservoir is filled with water, the water level will significantly rise, inevitably flooding some sections of the existing G108 National Highway, G108 Double Line, Junhong Road, and Hongnan Road. In order to ensure uninterrupted regional transportation network and unimpeded travel of residents along the reservoir after its completion, the relocation and reconstruction projects of these four "lifelines" have become rigid prerequisites for reservoir construction. Therefore, this road project with a total investment of 6231.3967 million yuan is an indispensable key supporting facility to ensure the smooth construction and effective utilization of the reservoir.

The grand project of a road

This relocation project is not just a simple road widening, but a comprehensive and complex transportation project that includes bridges, tunnels, and roads. The project includes 4 lines with a total mileage of about 19.864km, all of which are constructed according to the standards of second-class highway. The specific construction content includes comprehensive civil engineering projects such as roadbed and pavement, bridges, culverts, tunnels, and drainage protection. Among them, the G108 national highway realignment will build 10 new bridges and 2 tunnels; The G108 double track realignment will result in the construction of 5 new bridges and 4 tunnels; Multiple bridges and tunnels have also been planned for the realignment of Junhong Road and Hongnan Road. The estimated contract price for the entire project is approximately 1.34 billion yuan, with a planned total construction period of 690 days. The construction will strictly follow the principle of "relocation first, use later, and then interruption" to ensure seamless connection between new and old roads and minimize the impact on public travel. Keywords: latest news on water conservancy, latest reports on water conservancy

Far beyond the value of the road itself

The profound significance of this road project goes far beyond the scope of transportation itself. Firstly, it is a crucial link in ensuring the smooth completion of the Erdaohe Reservoir, the future highest dam in Beijing. After the completion of the reservoir, it will greatly enhance the flood control and disaster reduction capabilities of the Dashi River Basin and even the entire Beijing Tianjin Hebei region, and its strategic value is enormous. Secondly, the newly built roads themselves will form a safer and more efficient modern transportation network in the region, serving the long-term development of the local area. Finally, the project attracted fierce bidding from top domestic construction companies such as Beijing Chengjian Huasheng, Henan Jinlu, and Anhui Jiangong Lugang, and was ultimately won by a local enterprise in Beijing. This also reflects the comprehensive consideration of quality, technology, and local experience in major infrastructure projects. This project is a 'safeguard road' towards a safer future.Editor/Gao Xue