Wubei Zhi (Vol. 60)

In the 18th year of the Wanli reign 1590 CE, the Majia Ferry Grid Dike Ge-tiA series of transverse dikes built perpendicular to the main river bank to trap silt and slow floodwaters. was newly constructed. In the 18th year of the Wanli reign 1590 CE, the Xin'an Double Dike Bei-tiA secondary "back-up" dike built behind the main levee to provide a second line of defense against breaches. was newly constructed.

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North Bank River Markers

These "Platforms" (Tai) served as observation posts and depots for flood-fighting materials. The markers on the north bank are named sequentially using characters from the "Thousand Character Classic," a traditional Chinese educational text used here as a serial numbering system.

• Sui Platform original: 歲 (Year)
• Lü Platform original: 律 (Statute)
• Lü Platform original: 吕 (Musical Pitch)
• Diao Platform original: 調 (Harmony)
• Yang Platform original: 陽 (Sun/Masculine)
• Yun Platform original: 雲 (Cloud)
• Xin'an Platform
• Teng Platform

South Bank River Markers

Unlike the north bank, these stations are named after common surnames, likely indicating the local families or officials responsible for the maintenance of these specific sections.

• Yang Platform
• Zhu Platform
• Tai Platform
• You Platform
• Xu Platform
• He Platform

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Terrain and Hydrology

Hama Lake (Toad Lake) was a significant catchment area often mentioned in Ming dynasty river treatises as a potential spillway for excess floodwaters.