Lovethatdirtywater, already named New England’s champion 3-year-old for 2010, was crowned the 2010 James B. Moseley Horse of the Year by the New England Turf Writers Association at its annual awards dinner Thursday.Owned and trained by John Botty, Lovethatdirtywater had earned regional champion juvenile honors in 2009.Lovethatdirtywater raced exclusively at Suffolk Downs in 2010 and ended his season with 3 wins and a second-place finish from 5 starts, with earnings of $23,900.