21. Among other problems, the bay, including its tidal rivers , does not meet standards for dissolved oxygen. 22. The marshes are drained by four tidal rivers : 23. Shipyards are constructed nearby the sea or tidal rivers to allow easy access for their ships. 24. The tidal river is used for leisure navigation. 25. Thus, it means " between two tides ", a reference to its location between two tidal rivers . 26. In March 2011 a significant rainfall event led to major flooding of the Tidal River camping area. 27. Both the tidal river through London and the non-tidal river upstream are intensively used for leisure navigation. 28. However, encroachment of the tidal river bed habitat is contrary to the current planning policies of Lambeth. 29. The village straddles the tidal River Crouch approximately 14 km ( 9 miles ) south-southeast of Chelmsford. 30. Both the tidal river through London and the non-tidal river upstream are intensively used for leisure navigation.
