21. The significance of riverboats is dependent on the number of navigable rivers and containers. 22. Designed by the War Department, citing navigable river clearance concerns. 23. Andorra is a landlocked mountaneous country with no navigable rivers that doesn't have any navy. 24. Transportation was difficult due to the lack of rail lines or an easily navigable river . 25. Various attempts were made to extend the navigable rivers . 26. It is one of Michigan's few inland navigable rivers . 27. He saw what a great airport could do for a city with no navigable river . 28. It is a shallow, non-navigable river , although its mouth at Axmouth has some boating activity. 29. In 1831 Joseph Priestley wrote his' Historical Account of the Navigable Rivers , Canals and Railways'. 30. The navigable River Havel flows through the lake, entering it via a channel from the Schwedtsee.
