A water control gate clamping system comprising: a foundation, a water control gate clamp casting, linking a clamp pivot embedded in said foundation and located upstream of said gate with, an anchor bolt embedded in said foundation and located adjacent said gate and having a nut assembly (2,3), said clamp casting being provided with a bolt hole shaped to clear the anchor bolt throughout its range of motion during installation, an anchor bolt sleeve; and a water occlusion system and wherein said water occlusion system comprises: a clamp casting anchor bolt hole cover (11, 12) positioned to prevent ingress of water to said bolt hole, characterized in that the anchor bolt having a sleeved portion, the sleeved portion having an anchor bolt sleeve and the anchor bolt further having an upper unsleeved portion, the water occlusion system further comprising a compressible rubber seal; an anchor bolt upper spacer extending horizontally from said anchor bolt and having an upper surface; and a water and oxygen displacing substance and wherein said compressible rubber seal is positioned on top of said horizontal portion of said anchor bolt upper spacer and surrounds a portion of said anchor bolt sleeve, and wherein said compressible rubber seal is shaped so that the upper seal end is slidably positioned into said clamp casting bolt hole. a foundation, a water control gate clamp casting, linking a clamp pivot embedded in said foundation and located upstream of said gate with, an anchor bolt embedded in said foundation and located adjacent said gate and having a nut assembly (2,3), said clamp casting being provided with a bolt hole shaped to clear the anchor bolt throughout its range of motion during installation, an anchor bolt sleeve; and a water occlusion system and wherein said water occlusion system comprises: a clamp casting anchor bolt hole cover (11, 12) positioned to prevent ingress of water to said bolt hole, characterized in that the anchor bolt having a sleeved portion, the sleeved portion having an anchor bolt sleeve and the anchor bolt further having an upper unsleeved portion, the water occlusion system further comprising a compressible rubber seal; an anchor bolt upper spacer extending horizontally from said anchor bolt and having an upper surface; and a water and oxygen displacing substance and wherein said compressible rubber seal is positioned on top of said horizontal portion of said anchor bolt upper spacer and surrounds a portion of said anchor bolt sleeve, and wherein said compressible rubber seal is shaped so that the upper seal end is slidably positioned into said clamp casting bolt hole. a clamp casting anchor bolt hole cover (11, 12) positioned to prevent ingress of water to said bolt hole, characterized in that the anchor bolt having a sleeved portion, the sleeved portion having an anchor bolt sleeve and the anchor bolt further having an upper unsleeved portion, the water occlusion system further comprising a compressible rubber seal; an anchor bolt upper spacer extending horizontally from said anchor bolt and having an upper surface; and a water and oxygen displacing substance and wherein said compressible rubber seal is positioned on top of said horizontal portion of said anchor bolt upper spacer and surrounds a portion of said anchor bolt sleeve, and wherein said compressible rubber seal is shaped so that the upper seal end is slidably positioned into said clamp casting bolt hole.