KDOT Temporary Erosion-control Manual PDF Download
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Author: Kansas. Department of Transportation
Publisher:
ISBN:
Category : Road drainage
Languages : en
Pages : 46
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Book Description
Author: Kansas. Department of Transportation
Publisher:
ISBN:
Category : Road drainage
Languages : en
Pages : 46
Get Book Here
Book Description
Author: Kansas. Department of Transportation
Publisher:
ISBN:
Category : Road drainage
Languages : en
Pages : 45
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Book Description
Author: Bruce M. McEnroe
Publisher:
ISBN:
Category : Road drainage
Languages : en
Pages : 72
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Book Description
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.
Author: Asphalt Institute
Publisher:
ISBN: 9781934154175
Category : Asphalt
Languages : en
Pages : 102
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 466
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Book Description
Author: Federal Highway Federal Highway Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 669
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Book Description
This manual is intended to serve as a reference. It will provide technical information which will enable Manual users to perform the following activities:Describe typical erection practices for girder bridge superstructures and recognize critical construction stagesDiscuss typical practices for evaluating structural stability of girder bridge superstructures during early stages of erection and throughout bridge constructionExplain the basic concepts of stability and why it is important in bridge erection* Explain common techniques for performing advanced stability analysis along with their advantages and limitationsDescribe how differing construction sequences effect superstructure stabilityBe able to select appropriate loads, load combinations, and load factors for use in analyzing superstructure components during constructionBe able to analyze bridge members at various stages of erection* Develop erection plans that are safe and economical, and know what information is required and should be a part of those plansDescribe the differences between local, member and global (system) stability
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 584
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Author:
Publisher:
ISBN:
Category : Economic assistance, Domestic
Languages : en
Pages : 238
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Book Description
![Guidelines for Geometric Design of Very Low-volume Local Roads (ADT [less Than Or Equal to Symbol] 400) PDF](https://books.google.com/books/content/images/frontcover/ltat0AEACAAJ?fife=w80-h100)
Author: American Association of State Highway and Transportation Officials
Publisher: Aashto
ISBN: 9781560511663
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Author: Shahid A. Abbasi
Publisher: Transportation Research Board
ISBN: 0309223849
Category : Science
Languages : en
Pages : 71
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Book Description
"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.
