The widow of PC Bill Barker says she is "humbled and honoured" that her husband's bravery has been recognised nationally.
PC Barker has been posthumously awarded the Queen's Commendation for Bravery.
He died after Workington's Northside bridge was swept away in flood waters in 2009.
Home Secretary Theresa May says she has spoken to Mrs Barker.
She said: "I personally expressed my thanks for her husband's sacrifice and I hope this ward adds to the legacy he has left her and their children."
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Sandy Murray, of Police Scotland, was was giving evidence at the trial of a bus driver who denies killing Ryan Baird by dangerous driving.
34-year-old Christopher Peck was involved in a head-on crash with a drunk driver. His funeral has taken place in his hometown, Workington.
The arrests come weeks after a much-publicised series of appeals to mark the 30th anniversary of the 18-year-old's death.