The Portugues Dam is being constructed to control flood waters running through the Portugues River during peak flood events. As the first thick arch roller compacted concrete (RCC) dam in this U.S. territory, its construction includes a 145-foot-wide ogee crest spillway, intake structure, and valve house to control reservoir levels.
The dam includes the placement of 400,000 cubic yards of RCC. The RCC requires the onsite crushing of one million tons of aggregate from staged borrow sources in the valley of the Portugues River. The foundation of the dam involves the excavation of 60,000 cubic yards of material and grouting of the entire length of the dam. The foundation surface is treated with dental concrete in areas where RCC cannot be readily placed.
As project manager, Kleinfelder managed the contractor’s quality control program. This included setup of the U.S. Army Corps of Engineers (USACE)-validated onsite laboratory and staffing the laboratory to provide around-the-clock construction materials testing both in the laboratory and field during construction. Kleinfelder also provided quality control measures to ensure the requirements of the contract documents are strictly followed.
Kleinfelder set up an onsite USACE-validated laboratory and staffed it to provide round-the-clock
materials testing throughout construction. We also managed quality control programs to ensure strict adherence to all contract documents.