Timmons Group Launches Know Your Numbers: Developing Stormwater Run-off Solutions with GIS
Written by Timmons Group
10 March 2010
Timmons Group Launches "Know Your Numbers: Developing Stormwater Run-off Solutions with GIS" with the James River Association
Richmond, VA-March 8, 2010 - Timmons Group, a leader in enterprise geospatial products and services, recently launched a new website with the James River Association (JRA) to provide stormwater run-off solutions and increase public knowledge regarding pollution in the James River.
JRA contracted with Timmons Group to provide an interactive website which assists landowners in the estimation of rainfall run-off quality and quantity. Using this new, map-based website, landowners and James River constituents can easily locate their address, provide input for land use characteristics, and generate output reports detailing lot run-off values.
Factors which may affect run-off values include lot size, percentage of impervious area (i.e., area covered by driveways, sidewalks, and structures), frequency of lawn fertilization, and the presence of downspouts, rain barrels or a green roof. After the property is selected, a series of simple questions regarding these factors further tailors the user's report; default values are also provided.
The output report from the run-off analysis includes estimated nitrogen and phosphorous loads, both of which contribute to pollution problems in the James River and the Chesapeake Bay. Each report also details tips for reducing run-off, and users may even compare how adding water retention features, such as a rain garden, may help mitigate their run-off amounts.
The James River is Virginia's largest tributary to the Chesapeake Bay, and one-third of all Virginian's live in the 10,000-square mile James River watershed. Residents of the watershed's 39 counties and 19 cities and towns can quickly calculate their estimated storm run-off at www.whatsinyourrunoff.com .
The site was built using ESRI ArcGIS Server 9.3.1, Geoprocessing models, and the ArcGIS Server Flex API.
The map-based interface may be viewed as a street map, a topographic map, or as a satellite aerial, with the additional option to view an address on the ground in Google Streetview. Easy-to-use widgets provide zoom and panning capabilities, as well as the ability to draw on and label areas of the map, and print copies of both maps and output reports.
About The James River Association
The James River Association (JRA) is a member-supported, 501(c)(3)nonprofit organization whose mission is to be the guardian of the James River. JRA provides a voice for the river and takes action to promote conservation and responsible stewardship of its natural resources. JRA is the only organization in Virginia working solely to protect and enhance the James River and the 15,000 miles of tributaries that flow throughout its watershed. JRA addresses water quality issues throughout the watershed by partnering with corporations, local governments, farmers, landowners, individuals and state and national agencies. For more information on JRA, visit their website at http://www.jamesriverassociation.org.
About Timmons Group
Timmons Group is a leading provider of geospatial, information architecture and engineering services focusing on ArcGIS Server, ArcGIS Mobile and Enterprise solutions. Timmons Group develops solutions across multiple platforms, including Adobe Flex / Flash, Microsoft Silverlight, and JavaScript. Timmons Group is a privately held ENR 500 company and maintains a strong business partner relationship with ESRI. Timmons Group has been a recipient of both the ESRI Business Partner of the Year award and the ESRI Foundation Partner of the Year award. For more information about Timmons Group's Geospatial products and services, contact Lowell Ballard at
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or visit http://gis.timmons.com.
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