Lake Red Rock Emergency Bank Stabilization

Pella, Iowa

Arrowhead was awarded a firm fixed-price task order under an ID/IQ contract to implement shoreline protection measures on the Des Moines River at Lake Red Rock, IA. The project was scheduled while the reservoir was temporarily maintained at a lower pool level, to accommodate various construction projects throughout the Des Moines River basin and Lake Red Rock.

Due to severe erosion caused by several years of high water conditions, the Lake Red Rock Visitors Center was being undermined putting the building and associated structures at risk of collapse. The proposed solution required extensive bank stabilization to prevent continued erosion of the shoreline bluff. Arrowhead was awarded a firm fixed price contract to stabilize approximately 5000 square feet of clay bluff overlook. The project required placement of 6,300 tons of large rip rap (800lb) and 1,600 tons of 3 inch bedding stone. The project also required construction of an access road on the existing dam face and water level control.