ROCKY RIDGE RANCH DAMS AND SPILLWAYS MODIFICATIONS

LAKES OCIE, WANDA LEE, SKI

STE. GENEVIEVE COUNTY, MISSOURI

1994

(Lake Wanda Lee, foreground; Ocie Dam, background)

Michael Schrader performed the hydrologic and hydraulic analyses of the Lakes of Rocky Ridge Ranch: Ocie, Wanda Lee, and Ski. Based on these analyses, Michael Schrader designed the modifications to all three dams and spillways needed to bring them into compliance with Missouri Dam Safety Regulations. Design elements included bridges, spillways, grading and earthwork, and roads. As roads traverse each of the three dams, Michael Schrader was also responsible for specifying the complex construction phasing and logistics necessary to complete the work in a timely basis while maintaining access to properties on both sides of each dam.

(Floodwall on the back of the top of Wanda Lee Dam prevents overtopping.)

Tasks performed

· Performed HEC-1 and HEC-2 analyses of each dam and spillway structure

· Secured construction permits from the appropriate state agency

· Designed all dam and spillway modifications

· Designed structures over spillways

· Established construction sequencing and logistics

· Estimated construction costs and presented designs and estimates to residents

· Wrote specifications and bid documents

· Served as liaison between owners and governmental agencies

(Vehicular bridge carrying the road on top of Wanda Lee Dam across the Wanda Lee spillway.)

(Road on top of Wanda Lee Dam, left, and Wanda Lee spillway.)