通航河道约73公里。
中国约有12.3万公里可通航的河道，其中6.1万公里为商业运输航道。
China has 123,000 km of navigable waterways, of which 61,000 km are officially classified for commercial navigation purposes.
铁路桥梁工程建设对河道堤防安全、河势稳定、输水安全、通航以及渠道治理规划等产生一定的影响。
Construction of railway Bridges has a great influence on security of levee, flow stability, security of water transferring, navigation, and canal management.
应用推荐