Rivero was all alone when he received a header from Jaime Castrillon and fired a volley past Chivas goalkeeper Tim Melia in the 16th minute for a 1-0 lead.
Hill doubled the advantage in the 43rd minute with a header off a pass from Omar Cummings as the Rapids (10-19-4) closed out their road season.
Chivas fell to 7-18-8.
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