B R I 



No. 

 Place. Date. Arches. Chord. Ver. sin. Curve. 



Maxence, Oise 1785 ... 76% 6^ 



Pont de la Concorde, Paris 1791 ... 93% 9% circular. 



Saumur, Loire 1770 ... 12 60 21 elliptical. 



Bridge of Jena, Paris 1815 ... 91)4 10% circular. 



Ulm, Danube 1806 ... 1 181 # 22^ circular. 



Burton, Trent 1200 ... 34 1545 long, longest in Britain. 



London Bridge 1176 ... 20 70^ 22% circular. 



Llanwrst, Conway 1600 ... 3 58 17 circular. 



Pont y Pryd, Taaf 1752 ... 1 140 35 circular. 



Blackfriars 1771 ... 100 41^ elliptical. 



Waterloo 1818 ... 9 120 32 elliptical. 



Westminster 1750 ... 15 76 circular. 



IRON BRIDGES. 



Chord. Ver. sin. I Chord. Ver. sin. 



ColbrookDale 100 45 Boston. 



Sunderland 240 30 Southwark 240 24 



Buildwas 130 27 Bonar 150 20 



Bristol 100 15 



SUSPENSION BRIDGES. 



Chord. Chord. 



Menai Bridge 560 Middleton, Tees 70 



Its suspended weight 490 tons. Proposed Bridge at Run- 

 Berwick 432 corn ..,,..,,,,,,,...1. 1000 



Dryburgh 261 



