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I <br /> II <br /> NO.4—CONTROL STRUCTURE/FLOW RESTRICTOR <br /> Maintenance Defect or Problem Condition When Maintenance Is Needed Results Expected When <br /> Component Maintenance Is Performed <br /> Cleanout gate is not watertight Gate is watertight and works as <br /> designed. <br /> Gate cannot be moved up and down by one Gate moves up and down easily and <br /> I maintenance person is watertight. <br /> Chain/rod leading to gate is missing or damaged. Chain is in place and works as <br /> designed. <br /> Orifice Plate Damaged or missing Control device is not working properly due to Plate is in place and works as <br /> missing,out of place.or bent orifice plate. designed. <br /> Obstructions Any trash.debris.sediment,or vegetation Plate is free of all obstructions and <br /> blocking the plate. works as designed. <br /> Overflow Pipe Obstructions Any trash or debris blocking(or having the Pipe is free of all obstructions and <br /> potential of blocking)the overflow pipe. works as designed. <br /> I Deformed or damaged Lip of overflow pipe is bent or deformed. <br /> lip Overflow pipe does not allow <br /> overflow at an elevation lower than <br /> design <br /> Inlet/Outlet Pipe Sediment Sediment filling 20%or more of the pipe. Inlet/outlet pipes clear of sediment. <br /> accumulation <br /> Trash and debns Trash and debns accumulated in inlet/outlet No trash or debns in pipes. <br /> pipes(includes floalables and non-floatables). <br /> Damaged Cracks wider than%-inch at the pint of the No cracks more than Y.-inch wide at <br /> inlet/outlet pipes or any evidence of soil entering the joint of the inle/outlel pipe. <br /> at the pints of the inlet/outlet pipes. <br /> Metal Grates Unsafe grate opening Grate with opening wider than'/„inch. Grate opening meets design <br /> I (If Applicable) standards. <br /> Trash and debns Trash and debns that is blocking more than 20% Grate free of trash and debris. <br /> of grate surface footnote to guidelines for disposal <br /> Damaged or missing Grate missing or broken members)of the grate Grate is in place and meets design <br /> standards. <br /> Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in place CoverArd protects opening to <br /> Any open structure requires urgent structure. <br /> maintenance. <br /> --, <br /> Locking mechanism Mechanism cannot be opened by one - Mechanism opens with proper toolsI . <br /> Not Working maintenance person with proper tools.Bolts <br /> cannot be seated. Self-locking cover/lid does not <br /> work. <br /> !Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and <br /> Remove cover/lid after applying 80 lbs of lift reinstalled by one maintenance <br /> iperson. <br /> I <br /> 1 <br /> I <br /> 1 <br /> I <br /> I <br /> I <br /> I <br />