Meram opened the scoring for the Crew (8-8-9) off a defensive miscue in the 35th minute.
David Horst misplayed a pass in the Dynamo (7-13-4) backfield, allowing Meram to intercept the ball near the top of the box. Horst tried to recover, but Meram evaded and punched the ball into the top of the net.
The victory pulls the Crew into a third-place tie with Toronto FC in the Eastern Conference with 33 points.
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