Luke Berry's late penalty earned Cambridge a 1-0 win against struggling Dagenham.
The key moment came eight minutes from time when Robbie Simpson was brought down in the box by Joe Worrall. Captain Berry sent goalkeeper Mark Cousins the wrong way with the resulting spot-kick.
Cousins had excelled, having saved well from James Dunne moments before the goal.
Christian Doidge headed a good chance wide for the visitors early on, and in difficult windy conditions Ashley Hemmings' cross from a wide position...