Zengwen River
Southern Taiwan’s largest river system, shaping the Tainan plains and estuarine wetlands. Key opportunities include floodplain reconnection, sediment-smart habitat design, and low-flow water quality polishing near the estuary.
Key Issues
- High sediment loads and variable flows from monsoon/typhoon cycles
- Nutrient and stormwater inputs from urban and agricultural catchments
- Limited public access to safe riverside recreation
Targeted Actions
- Restore side channels and wetlands near the estuary to improve clarity and biodiversity
- Interception and storage of first-flush stormwater for staged treatment
- Create shaded, supervised swim coves with gentle entries, ladders, and signage
Pilot Swim + Access Sites
- Lower Zengwen near estuarine wetlands and boardwalks
- Riverbank park nodes with natural edge protection and lifeguard access
Pilot Sites – Map / 試點示意圖
Schematic only. Locations indicative for planning discussion.
Safety + Water Quality Protocol
Public swimming will proceed in phases, based on water quality thresholds and onsite supervision. Pilot swim windows open only when recent tests meet safety criteria (E. coli GM ≤ 500 CFU/100 mL; no heavy rain in last 48 hours; turbidity and visibility acceptable). Transparent weekly reporting and onsite signage will communicate conditions.