在極端氣候的現在與未來，瞬間暴雨動輒超越一般防洪排水系統標準，極端暴雨時常出現破百的時雨量，此降雨量遠超出竹溪區域排水防護標準時雨量65.8毫米，也遠超過台北市雨水下水道建設標準時雨量78毫米的耐受程度只要不會造成災害就是將傷害降到最低，排水系統慢慢要改以「不怕水淹」為目標，再頻繁的淹水也沒有關係。
現在大多排水系統只，該雨量降至全國各地均難以避免積淹水的問題。淹水是永遠不可能消失的，但是，淹水要溢堤就會淹水成災，「不耐水淹」是環境並未設計成可以適應淹水，所以，要打造「不怕水淹的排水系統」必須要透過環境設計來改變，成為「不怕水淹」的排水系統要具備足以承受淹水的「容受力」，以及能夠迅速復原的「恢復力」。應從工程手法的觀念轉化做起，將混凝土改變成耐沖刷可吸水的材質、增加蓄洪池及綠地的面積，在下雨的時候，讓那些環境成具有蓄水、滯水、滲水、至保水功能的「容受力」，水退時又能讓環境達到迅速復原的「恢復力」，讓排水系統仍夠吸納更多的雨水，改變成像海綿一樣的排水系統可以吸水及放水功能，才能打造成為一個城市裡的「不怕水淹的排水系統」。
本研究為驗證竹溪上游第一期整治改造後，擁有「不怕水淹」防洪設施來面對現在極端強降雨氣候。施工期間遭遇0823豪雨強降雨，水退時也驗證了讓護岸擁有保水功能的「容受力」及迅速復原的「恢復力」，比一直加高防洪設施來得有效力。
竹溪一期整治後，如可繼續執行二期，可望整體增加滯洪空間7,000㎡及讓上、中游Q25降低20公分水位高，Q10降低30公分水位高，減少約2.7公頃淹水面積，增加保護人口約1,100人。

Currently, under extreme climate condition, short-time rainfall often exceeds 100mm, which is much more than 65.8mm, the capacity of drainage system of Zhuxi area, or 78mm, the capacity of drainage system of Taipei city. Hence, rainfall over 100mm will inundate most area in Taiwan. Since flood can not be eliminated, it is better to control flood hazard with“Not afraid of flooding”water drainage system.
At present, water overflowing river dikes is hazardous because the environment has no flood tolerance. Hence, development of flood tolerant environment is the basis of building“Not afraid of flooding”urban drainage system. Alternative engineering method make“Not afraid of flooding”water drainage system be tolerant to flood and fast recovery from flood. For example, erosion resistant and porous concrete material is adopted and the area of flood detention pond and green space is increased. As a result, capacity of environmental flood control is improved and environmental recovery speed after flood recession is also increased. Building a “Not afraid of flooding”city water drainage system means rebuilding urban drainage system like sponges, which absorb and release water quickly.
This research proves that after the first term remediation plan was finished, Zhuxi is now equipped with “Not afraid of flooding”water drainage system which can handle excessive rainfall. Quick water recession after 0823 heavy rain event which happens during construction also proved that making river bank revetment with flood toleranance and recovery ablity is more efficient than keep heightening flood protection works.
If the second term remediation plan is implemented, it will add another 7,000m3 of flood detention area, lower Q25 water level on upstream and midstream by 20cm, and lower Q10 water level on upstream and midstream by 10cm. The flood area will be reduced by 2.7 ha and about 1,100 people will be protected.

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