Treatise on Armament Technology, Volume 204

Military Supplies and Logistics I: Henan Part II

Wuyang County

New saoFascine bundles made of reeds, brushwood, and earth, weighted with stones and used to reinforce riverbanks or dikes against the current. revetments established in the 18th year of the Wanli reign original: "萬曆十八年" (1590 CE).

Sacrificial Altar at Yang Mountain

Lattice Dike Also known as a check dike, used to regulate the flow of water and trap sediment.

Deer sao | Wood sao | Wang Family sao | Exit sao | Kun sao | Ridge sao

sao Cart | sao Jin | sao Wei | sao Tao | sao Jiang | sao Xian
These likely represent specific named maintenance stations or dike segments along the river bank, often named after the materials used or the families responsible for their upkeep.

Culvert A stone or brick drain allowing water to pass under an embankment or road.

Lake Zhou