National Transportation Atlas Database (NTAD): National Waterway Network 1996-Present Datasets
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下载链接：
https://rosap.ntl.bts.gov/view/dot/56264
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资源简介：
The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous states plus the District of Columbia, Hawaii, Alaska, Puerto Rico and water links between. The nominal scale of the dataset varies with the source material. The majority of the information is at 1:100,000 with larger scales used in harbor/bay/port areas and smaller scales used in open waters.
提供机构：
Bureau of Transportation Statistics
创建时间：
2021-06-15
