Coordinates: 25°02′33″N 121°29′02″E / 25.0426°N 121.4840°E
Dahan Creek or Takekan Creek (Chinese: 大漢溪; pinyin: Dàhàn Xī) is a creek in Taiwan. It originates in Hsinchu County and then flows through Taoyuan City and New Taipei City for 135 km, before it joins Xindian Creek in Taipei to form the Tamshui River. It is dammed in Taoyuan City by the Shihmen Dam, which holds the Shihmen Reservoir. The Junghua Dam is 26 km upstream and designed to prevent silt from building up downstream in the Shihmen Reservoir.