Re: O.T. - Barrels and platforms on trestles, and covered bridges

[Cgnr]

Trent,
The barrels were for fire control.  There was nothing worse than fire on a 
trestle and they did happen fairly often.  Otherwise the platforms were also 
an escape route for workers when a train went by.  Covered bridges were just 
a way to protect the large investment in building a bridge from weather.
Bob