Margaret Calvert was in her early 20s when she helped develop the lettering and pictograms of the UK's road signage.
The bridge that carries much of the traffic to the port of Workington is being replaced at a cost of £4m.Copyright: Network Rail
The bridge at Siddick currently has restrictions including a weight limit because of its poor condition, and about 500,000 tonnes of freight a year go over it.
A temporary level crossing will be provided while the preparation work takes place, and the new bridge will be lifted into place over a weekend next May.
By Cristina Criddle