21. Prior to the construction of the Milldam, Beacon street ended at the foot of tidal basin . 22. The longest, Banahaw, spans the Surigao tidal basin . 23. They are planted in the Tidal Basin park. 24. The tidal basin was later filled in and is now occupied by the Back Bay Neighborhood. 25. A bronze marker remains at the planting site on the northern end of the Tidal Basin . 26. Their memories are as bright as the spring blossoms in Trafalgar Square or Washington's Tidal Basin . 27. The Tidal Basin and the Washington Channel are part of this wider section of the river. 28. A tidal basin outside the locks was formed by two timber piers, with an entrance wide. 29. She ran from the car and jumped into the Tidal Basin , and later had to be rescued. 30. The awesome Jefferson monument on Washington's Tidal Basin will remain, as will his face on Mount Rushmore.