PPT-LID Site Design and Drainage

Before Bioretention Dan Cloak Environmental Consulting May 23 2011 Hydrology for Stormwater Treatment and Flow Control LID Site Design Selftreating and Selfretaining Areas Use for Pervious Areas of Site. 104 Gravity drainage Syphonic drainage Parking deck drainage Balcony and terrace drainage Facade drainage Pipe systems Contents 105 Gravity drainage Syphonic drainage Parking deck drainage Balcony a Low Impact Development. Dan Cloak . Environmental Consulting. Construction Workshop, May 2, 2012 . Low Impact Development: What it is, what it does. Runoff dispersal (“self-retaining areas”). Pervious pavements. Managing Water, Harvesting Results – America's Ag Water Management Summit. October 11 - 12, 2011, Bloomington, MN. Al Kean, Chief Engineer, MN BWSR. 1. MN Clean Water, Land and Legacy Amendment. 3/8 of 1% . Stormwater. Control Plan. Stormwater. C.3 Guidebook . 6. th. Edition. Better and More Complete Plans. Regulatory Climate. Intense focus on LID. Confusion and debate about LID. Objectives. LID . Stormwater. ., P.E.. Stormwater Specialist. Biosystem. and Agricultural Engineering. Oklahoma State . University. Low Impact Development (LID). :. A Sustainable Solution for Oklahoma Stormwater. Mimics a site's predevelopment hydrology through design techniques that infiltrate, filter, store, evaporate, and detain runoff close to its source.. Pakistan has a large irrigated agriculture area totaling 13.6 million hectares (34.5 million acres). . The agriculture in P. akistan was . based on rainfall only to the mid of nineteenth century. .. Irrigation canals were introduced successively to increase the crop production. . ht. tps://www.municode.com/library/#!/. tx/austin/codes/drainage_criteria_manual. . Rational Method. Source: Austin Drainage Criteria Manual, Chapter 2. Source: Austin Drainage Criteria Manual, Chapter 2. 13 Year Drought. Regional water elevations were very low coming into the end of 2017. We were in the end of a 13 year drought cycle. This resulted in historically low dry season water levels as much as 4 feet below control elevation throughout many of these communities. During this low water time, vegetation expanded along the lake banks and canals. The lack of drainage demand made the maintenance of the system a lower priority. . Sydney Weyand, Dr. . Inci. . Guneralp. , and Dr. . Burak. . Guneralp. Texas A&M University. Outline. Introduction. Methodology. Implications. Future Research. Floods are one of the most damaging and common forms of natural disasters.. University of Minnesota . Dept. Soil, Water, & Climate. Southwest Research and Outreach Center. Jeff . Strock, . Ph.D.. Soil Scientist. 12 October, . 2011. Ag. Water Summit – Drainage System Management. Source: Austin Drainage Criteria Manual, Chapter 2. Manning’s N values. Intensity-Duration-Frequency Curves. Design parameters: climate, terrain, . demographics and traffic. Road alignment and impact on erosion and water flows . Side drainage design and erosion problems. Culvert design and erosion problems. Learning intention: We are learning about the hydrosphere.. Success criteria:. I can explain what a drainage basin is.. I can name the components of a drainage basin.. I can account for the movement of water within a drainage basin.. HDM Ch. 8. 1. Ability to determine the . peak flow . using the rational method. 2. Objectives. 3. Rational method . TR-55. Regression Equations. Historical Data. TR-20. HEC-RAS. 4. Design Flow Methods .