ITEM OF CONTRACT SPECIFICATIONS
PREFABRICATED CHANNEL IN VIBRATION COMPRESSED REINFORCED CONCRETE WITH SEMI-TRAPEZOIDAL SECTIONWITH BASE LARGER THAN 1050 mm. LOWER BASE 930 mm. AND USABLE HEIGHT 530 mm. WITH CENTRAL HALF THROAT TO FACILITATE SLIDING IN CASE OF LOW WATER FLOW. LENGTH OF THE SINGLE ELEMENTS 1500 mm.