Five minutes before the break Jack Muldoon was cautioned for persistent infringement by referee Johnson before the half-time whistle arrived after two additional minutes of play.
There were no changes as the teams emerged for the start of the second half and the Imps were on the attack straight from the off with Simmons felled on the edge of the 'D'; Hawkridge took the honours this time but saw his free-kick smash against the bar before Edwards smothered as the ball bounced around in the box.
Conner Robinson replaced Jack Muldoon 10 minutes after the restart in a straight swap on the right whilst four minutes later Conor Clifford picked out MacDonald with a peach of a cross but the visiting striker fired well over with a first time effort at full stretch.
Visiting keeper Edwards pulled off a a superb save in the 62nd minute as he tipped behind a great Wood header from a Bush throw-in but the Imps kept up the presure and a minute later the overlapping Wood was felled in the box as he went for a Rhead pass.
Referee Johnson had no hesitation in awarding a penalty and up stepped MATT RHEAD to fire home his seventh of the season from the spot.
Kegan Everington replaced Craig Stanley before play resumed with Bradley Wood given the captain's armband. Billy Clifford was replaced by ex-Imp Luke Howell at the same time and when things got underway again Simmons was booked for delaying the taking of a free-kick.
An action-packed period continued with Simmons prodding an effort inches wide in the 69th minute as the Imps attacked again and four minutes later Harry Crawford replaced Charlie MacDonald up front for Boreham Wood.
Sparrow fizzed a powerful drive just over from 25 yards as the Imps pressed forward again before Waterfall headed a Wood cross over. At the other end, with 10 minutes remaining, Crawford went in late on Farman before referee Johnson calmed things down and spoke to both players. Sparrow was booked a couple of minutes later for a trip on Cox.
Junior Morias for Matthew Whichelow was the visitors' last switch and this came before the Imps were awarded a corner, much to the annoyance of the home defence and keeper Edwards who kept hold of the ball before Rhead grabbed it so the flag-kick could be taken.
RHEAD was cautioned for his actions but had the last laugh as when Hawkridge floated in te corner, up rose the big striker to head home from six yards.
In the first of four additional minutes the lead was increased; Hawkridge again the provider but all credit to goalscorer ALEX SIMMONS who stretched and planted a superb header past Edwards and into the net via the underside of the bar.
FT: IMPS 3 BOREHAM WOOD 1