Woodwork denies nervy Colchester
Freddie Sears hit the woodwork as Colchester came closest to breaking a goalless stalemate at relegation rivals Crewe.
The Us striker's second-half effort came back off the post.
A point apiece kept both sides out of the bottom four after a nervous encounter that was devoid of match-winning quality.
Colchester made the running in the first-half, testing young Crewe goalkeeper Ben Garratt on several occasions. Jabo Ibehre posed the first threat for the visitors when he arrowed a shot across the face of the goal.
Crewe responded with young midfielder Liam Nolan letting fly from 20 yards to force a block from U's goalkeeper Sam Walker.
But it was Garratt who was busier of the two goalkeepers as he kept out efforts from Gavin Massey and Sears.
A mistake by Nolan, who was caught in possession by Alex Gibley, was nearly punished severely by Colchester after the hour-mark, Ibehre breaking clear and slippin in Sears, whose first-time shot cannoned against the post.
Uche Ikpeazu had his head in his hands with 15 minutes left as the Crewe striker directed his header the wrong side of the post after an inviting cross from Byron Moore had set him up in front of goal.