How many years have the Hongqi Canal been built?

Hongqi Canal has been built for nine years.

The Hongqi Canal Project 1960 started in February, and the auxiliary canal project 1969 was fully completed in July, which lasted nearly ten years. The project * * * leveled 1250 hills, erected 15 1 aqueducts and excavated 2 1 1 tunnels.

Building 12408, with 22.25 million cubic meters of earthwork excavated. The total length of the main canal of Hongqi Canal is 70.6 kilometers, and the branch canals of the main canal are distributed in all towns and villages in the city. According to calculation, if these earth-rock barriers are built into walls with a height of 2 meters and a width of 3 meters, they can run through the north and south of the motherland, bypass Beijing and connect Guangzhou and Harbin.

The story of building the Red Flag Canal:

The amount of lime used in the construction of Hongqi Canal is very large, and the insufficient supply of lime has become the main obstacle to the canal repair. The headquarters mobilized the masses and recruited lime burning experts throughout the county. Yuan Shuquan, the "King of Burning Ash" in Dongyao Commune, volunteered to burn lime.

Heshun Commune, on the basis of studying the original method of burning ash in Shuquan, created the method of burning ash by piling stones in Ming kiln, which can burn 400 kilograms of lime in one kiln, completely solving the problem of using lime in construction sites. ?

The problem of lime difficulty has been solved, and the problem of explosion difficulty has appeared again. So the county government recruited talents from the county's population of 580,000 to make explosives. After examination and selection, the personnel were determined and the factory was set up, which solved the problem of difficult explosives.