贵州省内河航道里程近年来逐年增加,到2008年年底,全省通航里程已达4003.7公里(含界河里程),全省主要通航河流航道等级全面提高,新增五级航道774.9公里、六级航道80.9公里,港航基础设施面貌发生重大变 The mileage of inland navigation channels in Guizhou Province has been increasing year by year in recent years. By the end of 2008, the mileage of navigation routes in the province has reached 4003.7 kilometers (including the boundary river mileage). The navigation channels of the major navigation rivers in the province have been raised in all-round way with the addition of the fifth grade navigation channel of 774.9 kilometers and the sixth- 80.9 km, significant changes have taken place in the port infrastructure