Catch Basin Screens
In 2011, the Creeks Division installed storm drain screens in nearly all of the storm drain openings in the City (approximately 1400 inlets). The retractable screens keep trash from entering the storm drains, which lead to the creeks, estuaries, and the ocean.
The screens have perforated holes that allow moderate amounts of water to flow through while holding trash back at the curb side. Trash that is stopped in front of the screens is picked up by street sweeping trucks on their scheduled routes. To prevent the risk of flooding during large storms, the screens are designed to open and allow fast flowing water through. After the heavy stormwater flow subsides, the screens swing back into place against the catch basin opening parallel to the curbside.
The catch basin screens operate passively, which make them a great solution to keeping trash out of the creeks and ocean, and off of the beaches, without adding ongoing maintenance costs to the City budget.
In addition to Measure B funds, this project was made possible by a $1.78 million grant provided by the American Recovery and Reinvestment Act of 2009 and the Clean Water State Revolving Fund, through an agreement with the State Water Resources Control Board.
Katika mwaka wa 2011, Idara ya Mito iliweka skrini za maji ya mvua katika karibu milango yote ya maji ya mvua katika Jiji (karibu vijito 1400). Vifuniko hivyo vinavyoweza kufunguliwa huzuia taka zisiingie katika mifereji ya maji ya mvua, ambayo huongoza kwenye vijito, vijito vya maji, na bahari. Vipuli hivyo vina mashimo yanayowezesha maji mengi kutiririka huku vikiweka takataka kando ya barabara. Takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu za takwimu. Ili kuzuia hatari ya mafuriko wakati wa dhoruba kubwa, vifuniko hivyo vimeundwa ili kufunguliwa na kuruhusu maji yatirire haraka. Baada ya mtiririko mkubwa wa maji ya mvua kutoweka, vifuniko hivyo hurudi mahali pake dhidi ya beseni la kuvua maji linalofunguka sambamba na ukingo wa barabara. Vifaa vya kuondoa taka vinafanya kazi kwa njia ya passively, ambayo inafanya kuwa suluhisho kubwa ya kuweka taka nje ya vijito na bahari, na mbali na fukwe, bila kuongeza gharama za matengenezo ya sasa kwa bajeti ya Jiji. Msaada wa $ 1.78 milioni uliotolewa na Sheria ya Uokoaji na Uwekezaji wa Amerika ya 2009 na Mfuko wa Mzunguko wa Jimbo la Maji Safi, kupitia makubaliano na Bodi ya Udhibiti wa Rasilimali za Maji ya Jimbo.