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The catalogue
4 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.
🇨🇳 China · Hydraulic works
Qin (Warring States unification) · Qin Central, Bashu, Baiyue
Xing'an Xiang north 70% vs Lingqu south 30% divide with Huazui spillway and 36 pound locks, 219 BCE Shi Lu Qin.
🇨🇳 China · Hydraulic works
Warring States Qin 246 BCE to Han 120 BCE (Zhengguo south) · Qin state Wei–Jing plain with Korean Zheng Guo engineer
South distributary 18 km ×14×2.6 m hangtu levees 3 m with 6 dragon-tail weirs 42 m and fish-scale carp gates 1.2 m: Zheng 246 BCE spy-branch.
🇨🇳 China · Hydraulic works
Warring States to Han continuous · Qin with Han engineer Zheng Guo (鄭國)
246 BCE 'sabotage' canal that irrigated 27,000 ha and enabled Qin to unify China.
🇨🇳 China · Hydraulic works
Qin 214 BCE to Tang 825 CE (Lingqu North pound) · Qin imperial (Shi Huang–Shi Lu) Lingqu Yue conquest hydraulic
North pound extension 1.2 km ×8×1.5 m with 3 Qin granite pound-locks 8×4 m ×1.0 m lift — earliest locks globally 214 BCE.
