近年來，河川復育計畫已越來越普遍，但往往缺乏後續監控，難以得知成功的經驗和復育目標是否達成。因此，系統化的河川評估方法（PPAs）可幫助從過去計劃中得到學習經驗，和應用適應性管理分析今後類似的計畫。本研究提供抽藤坑溪河段復育計畫中泥沙運輸和生態棲地方面的表現評估。
PPA從幾項現場調查結果進行了表現評估。河中棲息地結構的評估顯示，98％的結構已有損壞的跡象，顯示該計畫在棲地目標上是失敗的。研究發現，即使有浮游植物改變了河床，仍然達到此項計畫的運輸目標。本研究建議未來類似的計畫設計中，為了達到有效的復育工作，須包含計畫後的監測工作和地貌問題的考量（如泥沙輸移過程）。河道修正和河中結構物的擺置在高濃度泥沙的河流區域中將無法達到成效。

River restoration projects have become increasingly common, but lack of monitoring efforts led to the difficulty of obtaining the lessons of success and failure of a project. Hence, systematic post-project appraisals (PPAs) become very important in order to obtain lessons learned from past projects and apply adaptive management for future similar projects. This study provides performance assessment of Chotengkeng Creek restoration project in terms of conveyance and habitat objectives. PPA was conducted and the performance assessment was provided as results from several surveys. Evaluation of in-stream habitat structure showed that 98% of all structures had given sign of damage, and indicated the project to fail in achieving habitat objectives. It is found that eventhough there were emergent of vegetation and changes in the river bed, this project seems to achieved its conveyance objective. This study suggest for future similar projects to include post project monitoring effort and consideration of geomorphic issues (e.g. sediment transport process) in project design in order to get an effective restoration project. Modification of channel and placement of in-stream structure will become unproductive in stream with high sediment yield.

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