sentences:  Following a $2.1 million USD project, Recreation Engineering and Planning (REP) was commissioned to reconstruct the failing dam to enhance existing usage for recreational visitors and tourists alike while improving a stimulant of the local economy.REP was capable of providing a design which was tailored to the needs of the Rio Vista Dam which drastically reduced the reconstruction costs from $1.8 million to $500,000.The reconstruction efforts done by KBR, included removing the failing concrete side walls, grading the banks down to the water, and the addition of artificial rapids.