COLLEGE OF ENGINEERING Civil & Construction Engineering
Overview OSU STORMWATER MANAGEMENT Rain Garden Location Green Roof Project Information Areas of Valley Library Quad flood Objective: Design alternative stormwater Green Roof Benefits frequently during storm events and cause management practices water to pool on the walkway. This Environmental Economical Social commonly occurs on the northwest walkway. • Carbon dioxide sequestration • Enhance property value • Aesthetic appeal: adds Goals: beautify to a relatively • Heat island reduction • Increase life expectancy of roof •Decrease flooding • Stormwater management unattractive area • Reduce building energy costs •Improve water quality • Wildlife habitats •Naturalize hydrograph • Improved water quality • Reduces air pollution •Decrease impervious surface •Treat storm water on site Design Model Roof Selection: The green roof is placed on lower south roof of Kerr. Actual Kerr Administration Building green will only by placed as shown below. The greenery consists of approximately 5 different types of plants. [6] Benefits The excess water which pools on the walkway will drain down into the garden. [1]
Gray Infrastructure Stormwater runoff drains into sewer system or streams. [4] Problems: - Toxins run into streams - If sent to treatment plant, undergoes unnecessary filtration. - Impervious surfaces increase peak runoff, [7] which requires large infrastructure design References [1] The University of Tennessee . (n.d.). Brad Collett . Retrieved May 8, 2014, from UT College of Architecture and Design: http://archdesign.utk.edu/faculty-staff/facultystaff/brad-collett/ Specific Green Roof Layers Include: [2] Program, Maryland Coastal Bays. (n.d.). Stormwater Management . Retrieved May 8, 2014, from Maryland Coastal Bays Program: Plants: A mixture of sedum evergreens, good for http://www.mdcoastalbays.org/bayissues-stormwater-management [3] Fordham University. (2011, July 18). Water Run-off Analysis . Retrieved May 8, groundcover, and grow well in the Pacific Northwest 2014, from St. Rose's Garden + CSA: https://fordhamsustainability.wordpress.com/2011/07/18/water-run-off- Soil: Lightweight, high water retention, and excellent for analysis/ [4] Google. (2014, March 20). Retrieved from Google Maps: plant growth, 4 inches deep https://www.google.com/maps/place/Kerr+Administration+Bldg,+500+SW+Je fferson+Way/@44.564209,-123.275369,464m/ Filter Fabric: Simple material designed to allow water to [5] Basya, E. I. (2011, February 15). Roof Garden - Concept . Retrieved May 9, 2014, from AYO BIKIN RUMAH: pass through, but not soil http://ayobikinrumah.wordpress.com/2011/02/15/roof-garden-concept/ [2] [6] Hogue, T. (2011, October 27). OSU Librarians Find Gaps in Support for Drainage: A drainage plate system made by Optigreen, Graduate Students . Retrieved May 8, 2014, from Life @ OSU: http://oregonstate.edu/dept/ncs/lifeatosu/2011/osu-librarians-find-gaps-in- suitable for extensive roofs with sedum plants support-for-graduate-students/ [7] Tiegs, B. (2011, June 28). Saving money and water in North Texas with rain Root Barrier: Flexible plastic covering which prevents gardens . Retrieved May 8, 2014, from Examiner: http://www.examiner.com/article/saving-money-and-water-north-texas- roots from growing into building with-rain-gardens Leak Detention System: Conductive mesh placed over the waterproofing; a current is forced through the water to determine breaks in the system, i.e. leaks Waterproofing: PVC covering to prevent water from [3] leaking into building Roof Decking: Part of existing structure; Kerr has a concrete decking [5]