Approximately fifty men of 3rd Battalion East Limerick IRA parade at 5:00 AM on the cold bleak morning of November 8. They are armed with 21 rifles and 21 shotguns, plus a small quantity of explosives. It has been decided to ambush a convoy at Grange Bridge, a point about eight miles from Limerick and about four miles from Bruff. They set out and occupy positions around John O’Neill’s house. The ambush site is about four miles from the big British garrison at Bruff to the south. The IRA expects two British lorries around 9:00 AM, however, in the end eight lorries and two armoured cars arrive at noon.
It is a joint action involving the flying columns of both the 3rd Battalion East Limerick Brigade and the 4th Battalion Mid Limerick Brigade, supported by men from the local companies of Bruff, Grange and Holy Cross in the East Limerick Brigade and from the Fedamore and Ballybricken Companies of the Mid Limerick Brigade. Donnchadha O’Hannigan has overall command of the combined columns and most of the ambushers are placed in houses and behind walls on both sides of the road. Among the IRA men who take part in the action is their chaplain, the Curate at Fedamore, Fr. William Joseph Carroll, who had been awarded the Military Cross for bravery in 1918 by the British Army. Also among the attackers is Maurice Meade, who had been a member of Roger Casement‘s Irish Brigade in Germany.
Something makes the British suspicious and they send one lorry ahead as a decoy. It is bombed by the IRA and raked with small arms fire. At this point, a British armoured car appears, with an officer mounted on the running board firing a revolver and its machine gun firing at the IRA at close range. The IRA account names the officer on the running board as Lt. Watling and they believe that they wounded him and he died in the hospital at Bruff that night.
More British reinforcements appear and the IRA realises that they are up against a vastly larger force than they had anticipated, so they retreat. Apart from one minor wounded man, they have no casualties.
The Royal Fusiliers‘ account says while escorting a Royal Air Force convoy from Fermoy to Oranmore, Lieutenant Allan and thirty other ranks are ambushed at Grange, near Bruff. The rebels, however, are speedily dealt with, and a quantity of arms, ammunition and two prisoners are taken. Unfortunately, Flying Officer Watling and Bandsman Bailey are wounded, the latter seriously. The only other casualty is Private French, who is shot at when a sentry at Galbally, and has the back luck of losing his arm.