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Effects Of Highway Construction And Operation On Water Quality And Quantity In An Ephemeral Stream In The Austin Texas Area
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Book Synopsis Effects of Highway Construction and Operation on Water Quality and Quantity in an Ephemeral Stream in the Austin, Texas Area by : Michael E. Barrett
Download or read book Effects of Highway Construction and Operation on Water Quality and Quantity in an Ephemeral Stream in the Austin, Texas Area written by Michael E. Barrett and published by . This book was released on 1996 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Highway Construction and Operation on Water Quality and Quantity in an Ephemeral Stream in the Austin, Texas Area by : Michael E. Barrett
Download or read book Effects of Highway Construction and Operation on Water Quality and Quantity in an Ephemeral Stream in the Austin, Texas Area written by Michael E. Barrett and published by . This book was released on 1995 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Quality and Quantity Impacts of Highway Construction and Operation by : Michael E. Barrett
Download or read book Water Quality and Quantity Impacts of Highway Construction and Operation written by Michael E. Barrett and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 5th International Conference on Geotechnical and Highway Engineering by : S. P. R. Wardani
Download or read book 5th International Conference on Geotechnical and Highway Engineering written by S. P. R. Wardani and published by World Scientific. This book was released on 2011 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains 89 papers from 25 countries and regions, including 14 keynote lectures and 17 invited lectures, presented at the Third International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (3ICGEDMAR 2011) together with the Fifth International Conference on Geotechnical & Highway Engineering (5ICGHE), which was held in Semarang, Indonesia, from 18 to 20 May 2011. This is the third conference in the GEDMAR conference series. The first was held in Singapore from 12 to 13 December 2005 and the second in Nanjing, China, from 30 May to 2 June 2008. The proceedings is divided into three sections: keynote papers, invited papers and conference papers under which there are six sub-sections: Case Studies on Recent Disasters; Soil Behaviours and Mechanisms for Hazard Analysis; Disaster Mitigation and Rehabilitation Techniques; Risk Analysis and Geohazard Assessment; Innovation Foundations for Rail, Highway, and Embankments; and Slope Failures and Remedial Measures. The conference is held under the auspices of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) Technical Committee TC-303: Coastal and River Disaster Mitigation and Rehabilitation, TC-203: Earthquake Geotechnical Engineering and Associated Problems, TC-302: Forensic Geotechnical Engineering, TC-304: Engineering Practice of Risk Assessment and Management, TC-213: Geotechnics of Soil Erosion, TC-202: Transportation Geotechnics, TC-211: Ground Improvement, Southeast Asian Geotechnical Society (SEAGS), Association of Geotechnical Societies in Southeast Asia (AGSSEA), and Road Engineering Association of Asia & Australasia (REAAA).
Book Synopsis Construction and Operation of a Freeway Bypass on US 101 Around the City of Willits in Mendocino County, from KP R69.4 Tp KP 84.2 (PM R43.1/52.3) by :
Download or read book Construction and Operation of a Freeway Bypass on US 101 Around the City of Willits in Mendocino County, from KP R69.4 Tp KP 84.2 (PM R43.1/52.3) written by and published by . This book was released on 2006 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University of Texas at Austin. Center for Transportation Research Publisher : ISBN 13 : Total Pages :24 pages Book Rating :4.3/5 (555 download)
Book Synopsis Center for Transportation Research, Bureau of Engineering Research, the University of Texas at Austin by : University of Texas at Austin. Center for Transportation Research
Download or read book Center for Transportation Research, Bureau of Engineering Research, the University of Texas at Austin written by University of Texas at Austin. Center for Transportation Research and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relation Between Urbanization and Water Quality of Streams in the Austin Area, Texas by : Jack E. Veenhuis
Download or read book Relation Between Urbanization and Water Quality of Streams in the Austin Area, Texas written by Jack E. Veenhuis and published by . This book was released on 1990 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrology and Water Quality of the Edwards Aquifer Associated with Barton Springs in the Austin Area, Texas by : R. M. Slade
Download or read book Hydrology and Water Quality of the Edwards Aquifer Associated with Barton Springs in the Austin Area, Texas written by R. M. Slade and published by . This book was released on 1986 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1974 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Highway Runoff in the Austin, Texas Area by : Michael E. Barrett
Download or read book Characterization of Highway Runoff in the Austin, Texas Area written by Michael E. Barrett and published by . This book was released on 1995 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Runoff Controls on the Quantity and Quality of Urban Runoff at Two Locations in Austin, Texas by : C. T. Welborn
Download or read book Effects of Runoff Controls on the Quantity and Quality of Urban Runoff at Two Locations in Austin, Texas written by C. T. Welborn and published by . This book was released on 1987 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relation Between Urbanization and Water Quality of Streams in the Austin Area, Texas by : Jack E. Veenhuis
Download or read book Relation Between Urbanization and Water Quality of Streams in the Austin Area, Texas written by Jack E. Veenhuis and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Impact of the Comprehensive Watersheds Ordinance on Stream Health in Austin, Texas by : Nathalie Carmen Kip
Download or read book The Impact of the Comprehensive Watersheds Ordinance on Stream Health in Austin, Texas written by Nathalie Carmen Kip and published by . This book was released on 2016 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: While Austin is often considered a leader in water quality management, it still has streams which are impaired. As urban development occurred in Austin, there appears to have been a diminishing regard for these creeks. As Austin receives the majority of its drinking-water supply from the Colorado River (a surface water source), there is a critical need to increase our understanding of the relationship between development trends and water quality in order to continue the implementation of successful watershed planning strategies and regulations. Further, there is a need for the evaluation of watershed protection regulations that have already been established, in order to determine their success. This thesis presents data from an analysis of water quality of creeks in watersheds that were primarily developed prior to the passing of Austin’s first Comprehensive Watershed Ordinance (CWO) in 1986, compared to water quality of creeks in watersheds that were primarily developed after the Ordinance was adopted. This exploratory study investigated the following research questions: How does stream health differ between watersheds that were primarily developed prior to the passing of the CWO compared to those that were mostly developed after the CWO? How do impervious cover, watershed size, soil type and watershed development affect stream health outcomes (metals, nutrients, macroinvertebrate biodiversity and water temperature) in the creeks under study and what are their empirical relationships? A total of forty-eight creeks were studied. Analysis included both GIS mapping and statistical methods. Three of the primary best management practices established by the CWO included riparian buffers, impervious cover regulations, and density controls. The findings reveal that post-CWO creeks have better stream health outcomes for lead, chromium, and nitrate concentrations. Water temperatures are generally lower in post-CWO creeks. Additionally, these creeks have greater macroinvertebrate biodiversity. Therefore, this study confirms that Austin’s watershed regulations do matter as they have had a positive impact on stream health in the city. The city should continue to focus on best management practices that will result in living streams, including: increasing riparian canopy cover throughout the city, promoting the development of rain gardens, establishing incentives for the use of impervious surface alternatives such as permeable pavers, and finally continue to educate and engage with Austinites regarding the protection of the city’s water network.
Book Synopsis An Evaluation of the Factors Affecting the Quality of Highway Runoff in the Austin, Texas Area by : Lynton B. Irish
Download or read book An Evaluation of the Factors Affecting the Quality of Highway Runoff in the Austin, Texas Area written by Lynton B. Irish and published by . This book was released on 1996 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Revision of Special Conditions on EPA Wastewater Treatment Facility Construction Grant for the City of Austin by :
Download or read book Revision of Special Conditions on EPA Wastewater Treatment Facility Construction Grant for the City of Austin written by and published by . This book was released on 1989 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Summary of Water Pollution Control in the State of Texas by : Texas Water Quality Board
Download or read book A Summary of Water Pollution Control in the State of Texas written by Texas Water Quality Board and published by . This book was released on 1970 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Urban Effects on Groundwater Recharge in Austin, Texas by : Beatriz Garcia-Fresca
Download or read book Urban Effects on Groundwater Recharge in Austin, Texas written by Beatriz Garcia-Fresca and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and urban populations are growing at a high pace, but groundwater remains an underutilized resource in most urban areas. The general impacts of urban development on groundwater include overexploitation; subsidence; decreasing quality; salt-water intrusion; disruption of ecosystems; variations in the local climate; properties of the soil; natural drainage network; and the quantity, quality, and location of both recharge and discharge. The shallow urban underground is an intricate network of tunnels, conduits, utilities, and other buried structures comparable to a natural karstic system, except that "urban karst" is generated much faster. Urbanization also introduces new sources of water, resulting in an increase of groundwater recharge. These sources include irrigation of parks and lawns, leakage from water mains and sewers, and infiltration structures. The areal extent of Austin, Texas, has grown steadily since 1885 but has increased five-fold since the 1960's. The difference between the amount of tap water treated in the City of Austin and the amount of sewage that arrives in the wastewater treatment plants (or excess urban water), represents the amount of urban water potentially available for recharge. A water balance shows that about 7% of the treated drinking water is estimated to be lost to leaks from the distribution network and 5% to leaks from sewers. The rest of the excess urban water is used in irrigation of parks and lawns, some of which will be evapotranspired and some will turn into recharge. Smaller fractions are recharged in septic tanks and other designed infiltration devices. Direct recharge from rainfall has decreased as a result of the introduction and expansion of impervious pavements, from 53 mm/a under preurban conditions to 31 mm/a in the year 2000. However urban sources of recharge contribute an average of 85 mm/a of excess urban water, resulting on an urban recharge of 63 mm/a, and a total recharge rate that could equal 94 mm/a. Several hydrogeochemical parameters were tested as tracers of urban recharge in Austin. Chlorination by-products (trihalomethanes) were found in high concentrations in tap water and in low concentrations in wastewater. However, they were not detected in either surface water courses or groundwater. δ15N is a commonly used indicator of leakage from sewers, but unusually low values were obtained. Finally, 87Sr/86Sr of dissolved strontium shows a strong trend that can be related to the degree of urbanization over the Barton Springs segment of the Edwards aquifer. Values of this ratio from the lesser urbanized wells indicate groundwaters close to equilibrium with the limestone, while samples from the more urbanized wells show higher values, which are closer to those of tap water.
