Contractor shall deliver approximately 130 cubic yards of cast in place concrete with a design strength of 5000 PSI to Meldahl Locks and Dam via concrete pumping truck per the specifications set forth... Contractor shall deliver approximately 130 cubic yards of cast in place concrete with a design strength of 5000 PSI to Meldahl Locks and Dam via concrete pumping truck per the specifications set forth in the Statement of Work and any future Amendments.