10521 19TH AVE SE 2022-05-23 - Laserfiche WebLink

Silver Lalce Plaza Table V-4.5.2(4) Maintenance Standards - Control Structure/Flow Restrictor (continued) Maintenance Condition When Main- Results Expected When Component Defect tenance is Needed Maintenance is Performed are not watertight and show signs of rust. designed. Any holes - other than Structure has no holes other designed holes - in the than designed holes. structu re. Cleanout gate is not water- Gate is watertight and works tight or is missing. as designed. Gate cannot be moved up Gate moves up and down eas- Cleanout Damaged or and down by one main- tenance person. ily and is watertight. Gate Missing Chain/rod leading to gate is Chain is in place and works as missing or damaged. designed. Gate is repaired or replaced to Gate is rusted over 50% of meet design standards. its surface area. Control device is notwork- Damaged or ing properly due to missing, Plate is in place and works as Orifice Plate Missing out of place, or bent orifice designed. plate. Any trash, debris, sediment, Plate is free of all obstructions Obstructions or vegetation blocking the and works as designed. plate. Overflow Any trash or debris blocking Pipe is free of all obstructions Pie P Obstructions (or having the potential of and works as designed. blocking) the overflow pipe. See "Closed Detention See "Closed Detention Sys See "Closed Detention Sys - Manhole Systems" tems" (No. 3). tems" (No. 3). (No. 3). See "Catch Catch Basin Basins" (No. See "Catch Basins" (No. 5). See "Catch Basins" (No. 5). 5). 2014 Stormwater Management Manual for Western Washington Volume V - Chapter 4 - Page 837 WESTERN ENGINEERS, INC. 36 PROJECT: 15-1415-A