The team played at the Activities Center at Marycrest College in Davenport, Iowa.
Finishing second place in the White Central division with a 24–9 record, the 'Hawks earned the #9 seed in the ABA Playoffs, defeating their brother franchise, the Sauk Valley Rollers in the first round by a score of 100–86, and then scoring a forfeit win over Central division champion Minnesota Ripknees (who had decided not to play in the playoffs due to a monetary dispute).
The 'Hawks would lose to eventual ABA runner-up Texas Tycoons in the quarterfinals by a score of 125–123.
The Riverhawks changed venues to the Wharton Field House in Moline, Illinois (former home to the NBA's Tri-Cities Blackhawks and later the CBA's Quad City Thunder), and changed their affiliation to the Premier Basketball League along with their brother franchise, the Rock River Fury.
Due to venue issues, the Riverhawks elected to take the 2008-2009 PBL season off.