Circulating Water Intake/Discharge Conduits at the Barakah Nuclear Power Plant. Construction of 137,000 Cum Reinforced Concrete Culverts for Circulating Water Intake and Discharge. Lengths of Multi Cell Culverts are 3992Lm of 4mx4m section and 1282Lm of 8mx8m sections including Hydrostatic Testing of each Conduit and Commissioning.