Download or read book Performance of KDOT Temporary Erosion control Measures written by Bruce M. McEnroe and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to develop practical guidance for temporary erosion control measures on highway projects in Kansas. Recommendations are based on the field monitoring of current measures, on-site testing of alternative measures, questionnaire responses from Kansas Department of Transportation (KDOT) construction personnel, and a comprehensive review of the practices of other organizations. These recommendations include changes to the current KDOT specifications and changes in the implementation of the current specifications. Whether a temporary erosion control measure succeeds or fails depends on where and how it is installed and how it is maintained. Most of the measures found in the KDOT specifications provide adequate erosion and/or sediment control when correctly followed. Improper placement, faulty installation, use of substandard materials, and inadequate maintenance were examples of failure to follow specifications fully. Based on findings and comments received from field personnel, most of these errors appear to be caused by a misunderstanding of how the temporary erosion control measures operate. The on site testing of new temporary erosion control products yielded some successes and some failures. The Triangular Silt Dike and the Rock Ditch Check performed very well and were included in the final recommendations. The High-Porosity Silt Fence and the Bio-log Ditch Check proved ineffective. KDOT should institute a program of on-site testing to determine the effectiveness of new erosion control products as a way to continually improve the erosion control specifications. The primary product of this research is the KDOT Temporary Erosion Control Manual. This manual provides the practical guidance needed for the design, installation, inspection, and maintenance of the most appropriate temporary erosion control measures for KDOT construction sites. It will be used statewide by designers, contractors, installers, and inspectors.
Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book US59 Amelia Earhart Memorial Bridge Over the Missouri River Atchison Kansas to US59 State Route 45 Intersection in Buchanan County written by and published by . This book was released on 2007 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Geometric Design of Very Low volume Local Roads ADT less Than Or Equal to Symbol 400 written by American Association of State Highway and Transportation Officials and published by Aashto. This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pollutant Load Reductions for Total Maximum Daily Loads for Highways written by Shahid A. Abbasi and published by Transportation Research Board. This book was released on 2013 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The intent of this synthesis is to collect information on the types of best management practices (BMPs) currently being used by state departments of transportation (DOTs) for meeting total maximum daily load (TMDL) water quality goals for stormwater runoff. The study approach includes two major components: interviews with 12 state DOTs to identify the existing state of the practice as it relates to TMDL implementation, and a review of selected literature sources based on the criteria of highways, TMDLs, BMP performance, and BMP cost to stay consistent with the goals of this synthesis. In particular, detailed quantitative BMP performance and cost data, including life-cycle costs, are presented, which builds significantly on previous studies of this nature. The impetus for this study was to help fill in a significant information gap on what types of BMPs are cost-effective for specific use in linear highway applications for TMDL implementation purposes. Even with the advent of new low-impact development/green infrastructure practices, there remain a lack of effective BMP technologies and nonstructural controls (e.g., source control and water quality credit trading) for DOTs to implement for National Pollutant Discharge Elimination System permit compliance. This problem will only grow larger as new TMDLs are continually being developed, and many DOTs are unprepared both technically and economically to cope with the additional requirements (some states already have 60+ TMDLs in which they are a named stakeholder). In an effort to help state DOTs with TMDL implementation, a simple user-friendly BMP matrix/toolbox with quantitative performance and, where available, life-cycle cost data for various structural and nonstructural BMPs is presented. Some of the more common TMDL pollutants of concern (sediment, nutrients, fecal coliform, and metals) are focused to maximize applicability for state DOTs. The performance and cost data were derived from numerous literature sources including the International Stormwater BMP Database, which currently consists of more than 400 studies. This study is designed to help promote information exchange and technology transfer among DOTs for the mutual benefit of all highway managers faced with TMDL implementation. Conclusions from this synthesis are briefly highlighted here by general topic area, with more details provided in chapters four and five. Performance for structural BMPs varied by pollutant and BMP type; however, certain trends did emerge from the literature review. In general, total suspended solids (TSS) appear to be relatively easy to treat with a broad range of BMPs, including infiltration basins, sand filters, and bioretention. Nutrients (especially total nitrogen) can be more challenging to remove; nonetheless, some BMPs (e.g., Austin sand filters for total nitrogen and infiltration basins for total phosphorus) showed some promise. Fecal coliform data were limited; however, several BMPs were documented as being effective, including infiltration basins, and infiltration trenches, among others. Additional BMP performance data from the International Stormwater BMP Database support the view that media filters and retention ponds are consistently effective for a wide variety of TMDL pollutants, including TSS, nutrients, fecal coliform, and total metals. This conclusion is based on statistics that show that median concentrations of these pollutants were statistically lower in effluent concentrations compared with influent concentrations based on a large number of studies from around the country (although not all highway related). Overall, while these BMPs may be generally effective across a range of environmental conditions, obtaining local site-specific BMP monitoring data would be preferable for developing individual state DOT TMDL programs. Performance data are also presented for nonstructural practices such as street sweeping, catch basin cleaning, and tree planting. Quantitative performance data are generally lacking in the literature for these types of BMPs. The limited information found suggests that street sweeping and catch basin cleaning may potentially be effective strategies for reducing TSS, nutrients, and metals provided they are performed frequently enough and the right technology is used (in the case of sweeping). Tree planting and stream restoration were documented as having some water quality benefits for nutrients. Notably, anti-icing management has been successfully demonstrated in New Hampshire, where a 20% reduction in chlorides was achieved by upgrading the technology on snow plows in response to a chloride TMDL. In addition to performance, life-cycle cost data are presented where available. However, the cost information could not be adequately synthesized owing to differences in cost estimating approaches, reporting units, variability in costs among states and regions, and inconsistencies in BMP naming conventions. This also prevented a true cost-benefit analysis. However, numerous sources of life-cycle cost data, as well as sources for individual cost elements such as design, construction, and operation and maintenance, are provided where the interested reader may obtain more detailed information. Given the differences in cost from one region to another, the reader is encouraged to obtain cost data that are most relevant to their state. Hyperlinks are provided in the BMP matrix/toolbox where one may access examples of reports with detailed life-cycle cost data, and numerous additional cost sources are cited throughout the section on Highway Best Management Practices in chapter three. There appear to be several common elements to developing an effective TMDL implementation program, all of which have the potential to benefit DOTs by helping them receive a more equitable waste load allocation and developing a more manageable TMDL program. The key elements are listed here (although not all may apply to every DOT): Increase awareness and training within the DOT on TMDL issues, especially in cases where the DOT is named a stakeholder in only a few TMDLs (or none). Develop off-site watershed partnerships and collaborate with other stakeholders to ensure cost-effective approaches based on economies of scale and to promote information sharing and technology transfer among stakeholders. Collaborate with the state regulatory agency during the TMDL development process, especially early in the process. Estimate pollutant loads generated within the DOT right-of-way (either through water quality monitoring or modeling) and predict potential load reductions from various BMP implementation scenarios. Although some DOTs had relatively successful TMDL programs, others clearly faced a number of challenges. The primary challenges were limited financial resources, a lack of effective BMP technologies for linear highway applications, and difficulties in navigating complex regulatory environments where TMDL-related requirements were either inconsistently enforced or restricted the flexibility of the DOT in implementing BMPs of their choice. Further research is suggested on the following topics: long-term adverse environmental and cultural aspects of BMP implementation; new and innovative BMP technologies suitable for the highway environment; more studies on BMP longevity, life-cycle costs, and maintenance costs and standards; and alternative and creative solutions to addressing emerging TMDLs for less traditional pollutants such as biological integrity, sediment toxicity, and organic compounds (e.g., vehicle source control, water quality trading)"--Pages 1-2.
Download or read book Highway Improvement Program written by and published by . This book was released on 1964 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal aid Policy Guide written by and published by . This book was released on 1997-10 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Erosion Control on Highway Construction written by National Research Council (U.S.). Highway Research Board and published by National Academy Press. This book was released on 1973 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Commercial Management and Financing of Roads written by Ian Graeme Heggie and published by World Bank Publications. This book was released on 1998-01-01 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Printed on Demand. Limited stock is held for this title. If you would like to order 30 copies or more please contact [email protected] Contact [email protected], if currently unavailable. In developing and transition economies, 60 to 80 percent of all passenger and freight transport moves by road-the main form of access for most rural communities. Yet most of the 11 million kilometers of roads in these economies are badly maintained and poorly managed. This paper discusses one of the most effective ways to promote sound policies for managing and financing road networks--commercialization. It discusses the emerging central concept of bringing roads into the marketplace, putting them on a fee-for-service basis, and managing them like a business.
Download or read book Future Groundwater Resources at Risk written by Jouko Soveri and published by . This book was released on 1994 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Management Systems written by S. W. Hudson and published by Transportation Research Board National Research. This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Geometric Design Research for Improved Safety and Operations written by Kay Fitzpatrick and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 299: Recent Geometric Design Research for Improved Safety and Operations reviews and summarizes selected geometric design research published during the 1990s, particularly research with improved safety and operations implication.
Download or read book Construction Contracts written by Jimmie Hinze and published by McGraw-Hill Science/Engineering/Math. This book was released on 2001 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Written in layman's terms, this all-you-need-to-know text focuses on the most important aspect of contract administration * Covers many legal issues related to construction law and provides essential background material about fundamentals * Examples of filled out documents help clarify the key points
Download or read book Best Practices in Guidance for Workforce Transition and Succession Planning written by and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uniform Vehicle Code and Model Traffic Ordinance written by National Committee on Uniform Traffic Laws and Ordinances and published by . This book was released on 1987 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trip Generation Handbook written by Kevin G. Hooper and published by . This book was released on 2004-01-01 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: ITE's recommended practice on how to apply trip generation data.
