Fortification Bridges

 

Guthrie Rolling Bridge

Guthrie Rolling Bridge

Details and examples

Fort Benjemma Rolling Bridge

Fort Benjemma Rolling Bridge
 

Fort Regent Rolling Bridge

Fort Regent Rolling Bridge
 

Swing Footbridge

Swing Footbridge
 

Ardagh's Equilibrium Bridge

Ardagh's Equilibrium Bridge
 

Ardagh's Equilibrium Counterpoise Bridge

Ardagh's Equilibrium Counterpoise bridge
 

 

 

 

 

 

 

 

 

Download a fact sheet showing the sequence of lifting a Guthrie Bridge pdf