Alexander Seal

Vital Statistics

Engineer: Isambard Kingdom Brunel

Date of official opening: 2 May 1859

Date of opening to public: 4 May 1859

Major Dimensions: 1:1 1:152
ft in mm
Length of each main span (two) 455 0  
Overall length of each Main Truss 461 0 1124.95
Distance between chain eye attachments 450 0  
Height of tube centre above roadway 72 0  
Height of roadway above HWOST 100 0  
Devon Approach Spans (West/East) 93 0  
83 6  
78 0  
72 6  
69 6  
69 6  
69 6  
Cornwall Approach Spans 93 0  
83 6  
78 0  
72 6  
69 6  
69 6  
69 6  
69 6  
69 6  
67 7  
Total Overall Length of Bridge 2187 6 4387