Sentence examples for river navigational from inspiring English sources

Promoted to the permanent rank of colonel on January 2 , 1881 Raynolds continued serving with the Corps of Engineers supporting a variety of harbor and river navigational improvements until his retirement in 1884, after a military career that spanned 40 years.

Structures to achieve a permanently stable situation like irrigation and navigational canals, river training or flood protection measures need suitable material, carefully thought out design and accurate execution.

The middle course of the main Polish river, the Vistula, contains many navigational hazards, and the river is thus a less-important waterway than the smaller Oder.

Tension over navigational rights to the river, which is about one mile across, was one reason that the two countries went to war in 1980.

"We always follow the river - it's the best navigational aid, especially in this terrain".

The device facilitates navigation and alters navigational strategies.

On most international rivers, for example, there are no navigational charges; but tolls are charged on most national artificial waterways.

Because variations in the Nile's flow affect the location and size of the delta waterways, Parcak argues that these towns, each positioned to take advantage of the irrigational and navigational potentials of the rivers, would have been left high and dry, then abandoned as the Nile's flow diminished.

Mobile was well situated for trade, as its location tied it to a river system that served as the principal navigational access for most of Alabama and a large part of Mississippi.

The definition of a navigation variable: the referential navigational paths1.

Navigational channels like the Mississippi River-Gulf Outlet were dug; these carried salt water into what had been freshwater marshes, killing trees and grasses and inviting erosion.