rebuilding London Bridge. 37 



4. On raising about -tO miles of river wall, varying from 24 



to 26 inches in height, and strengthening the banks by 

 wharfing and piling, in order to provide against the effects 

 of frequent floods, expectant on giving a freer water-way, 

 and increased velocity and height, to the current. 



5. On dredging out a channel for the current at low water, for 



the navigation. 



6. On the necessity of narrowing the river in several parts. 



7. On removing shoals and sand-banks, caused by the altera- 



tion in the directions of the mid sti'eam. 



8. On the erection of starlings round the piers of the different 



bridges, and especially round Vauxhall and Westminster 

 Bridges, which do not stand upon piles. The bridges 

 above London Bridge generally stand in shallow water, 

 and the foundations of them are very little below the bed 

 of the river, which may be undermined ; for a greater 

 depth must be effected artificially, in the first instance, 

 for the navigation, and subsequently, by the increased 

 velocity of the stream, in a manner which cannot now be 

 guessed at*. 



9. On the necessity of erecting another dam, or locks, to keep 



up the water, as a substitute for the dam taken down, the 

 necessity for which, the locks up the river, beginning at 

 Teddington, prove f . 



10. On the damage to shipping below the bridge, in times of 

 frost, by ice now stopped, at such times, by London Bridge. 



1 1 . On compensations to persons possessed of wharfs, adapted 

 to the present state of the river above and below the bridge, 

 for damage to them by the alterations in the course of the 

 stream, and the shifting of the sand banks. 



12. On compensation to persons whose trades are dependent 

 on the free thoroughfare over the bridge, living south and 

 north thereof, for seven years, during the erection, or while 

 it remains unfinished for want of funds to complete it. 



* The head of water maintained by the lock at Teddington in winter is 

 one foot, in summer four feet; a similar head is maintained at Moulsey. 

 Dams are erected here to keep the water up the country ; but the dam of 

 Lon<lon Bridge is to be taken down to let it out. 



\ The bottom of the foundations of the piers of Westminster Bridge is 

 five feet below the bed of tlie river, allowing two feet three inches, as at 

 Blackfriars Bridge, for grating ; the bottom of tiic stone is only two feet 

 nine inches below the bed. The bottom of the foundations of the piers of 

 Blackfriars Bridge is three feet nine inches below the bed, the bottom of 

 the stone eighteen inches. How nmch below the bed of the river are the 

 foundations of Vauxhall, Waterloo, and Southwark Bridges? The bottom 

 of the stone piers of Waterloo Bridge is only fifteen icct !)eIow the spring- 

 ing of the arches. 



1 3. On 



