History of canals in China

From the Spring and Autumn period (8th–5th centuries BCE) onward, the canals of China were used for army transportation and supply, as well as colonization of new territories.

During 483 and 482 BCE, Fuchai's men then built the Heshui Canal (t 荷水運河, s 荷水运河, Héshuǐ Yùnhé) connecting the Si with the Ji,[4] which ran parallel to the Yellow River through densely populated districts in what is now western Shandong.

[6] During the Chu–Han Contention (206–202 BCE), General Xiao He used the Wei River to transport provisions for his army, thereby creating an effective logistics supply network.

In 129 BCE, the sixth year of Emperor Wu, a canal was cut through the northern foothills of the Qin Mountains running parallel to the Wei River linking Tong Pass with Chang’an and greatly reducing the amount of time needed to transport goods between the two cities.

The Grand Canal became a major factor in economic growth and political unity by connecting north and south, allowing transport of tax grain and control of the sale of salt.

During the Song dynasty the capital Daliang (大梁), modern day Kaifeng, used the Bian Yellow, Huimin (惠民河) and Guangji (广济河) Rivers as part of the canal network.

Known as the Huai & Yangtze Rivers Grain Transport Office, (江淮都漕运司) this was an offshoot of the Three Departments and Six Ministries of the administrative third grade or "San Pin" (三品).

This office was responsible for arranging grain transportation to the Luan River (滦河) then onwards to the capital at Dadu (modern day Beijing) using more than 3,000 boats.

In 1368, the first year of the reign of the Ming Hongwu Emperor, the Capital Grain Transport Office (京畿都漕运司) was established under the auspices of a fourth grade (四品) commissioner.

Every year, regulations fixed the total amount of tax payable by the entire country in grain via the canal system at 29.5 million bushels.

Storage became unnecessary with the advent of the "duiyun" (兑运) form where taxes paid by the common people were partly used to directly pay the transportation fees for army supplies on the journey north.

Former yamen of the canal system's governor-general at Huai'an , Jiangsu Province.
A diagram of the Red Flag Canal near the Canal Visitor Center