水下文化資產調查(Survey of underwater cultural assets)


本計畫水下文化資產類型預測包括清法戰爭期間的水雷、砲彈、沉船、與電報海纜等遺留物,而經水下文化資產調查結果顯示,各處目標物底床皆為砂質,亦可見泥質堆積,周圍可見牡蠣殼與貝殼碎屑分布,總發現35處可能目標物。目標物經第一與第二階段水下驗證後顯示,探測所得的目標物係屬自然堆積的沙丘、礫石與泥塊,及木頭、廢棄繩索等現代遺留,整體未見具體之考古或歷史文化價值之遺物或遺留。 基於調查結果,推測淡水河口尚存在清法戰爭期間之沉船、水雷的可能性不高;而再次發現上述遺留的機會甚低,同時,颱風洪水的衝擊與水流、沉埋作用的影像亦使得沉船的完整度降低。因此,評估淡江大橋興建工程並不影響上述之水下文化資產。


 Underwater cultural assets that may be found in this project include mines, shells, and sunken vessels from the Sino-French War and underwater telegraph cables. The results of a survey of underwater cultural assets has revealed that the area in which target objects may be found has a sandy bottom with piles of mud; and frag-ments of oyster shells and other shells could be seen in the area. This survey found 35 places where possible target objects may be located. A first and second underwater verification indicated that the possible target ob-jects constituted natural sand mounds, stones and lumps of mud, pieces of wood, and such modern artifacts as discarded rope. No artifacts or relics with tangible archeological or historical value were seen. Based on the results of this survey work, it has been inferred that there is little likelihood that the mouth of the Tamsui River still preserves sunken ships or mines, etc. from the Sino-French War. This survey work again found that there is little chance of finding the foregoing artifacts, and flooding caused by typhoons, currents, and natural burial over the course of time are likely to have caused any sunken vessels to be in a poor state of preservation. Accordingly, it is concluded that the Danjiang Bridge construction project will not affect the forego-ing underwater cultural assets.



 探測區域水下地形圖

Map of underwater topography in the survey area


目標物分布圖

Target object distribution map 


 第一階段使用水下攝錄系統進行初步驗證 

During the first stage, an underwater video recording system was used to perform preliminary verification. 

第二階段由專業潛水人員利用水下攝錄儀器進行複查 

uring the second stage, divers used underwater video cameras to perform follow-up assessment.