New York State Standards and Specifications for Erosion and Sediment Control May Not Ensure Compliance with the Above Referenced Sections of the ECL
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Global Hydrogeology Maps (GLHYMPS) of Permeability and Porosity
UVicSPACE: Research & Learning Repository _____________________________________________________________ Faculty of Engineering Faculty Publications _____________________________________________________________ A glimpse beneath earth’s surface: Global HYdrogeology MaPS (GLHYMPS) of permeability and porosity Tom Gleeson, Nils Moosdorf, Jens Hartmann, and L. P. H. van Beek June 2014 AGU Journal Content—Unlocked All AGU journal articles published from 1997 to 24 months ago are now freely available without a subscription to anyone online, anywhere. New content becomes open after 24 months after the issue date. Articles initially published in our open access journals, or in any of our journals with an open access option, are available immediately. © 2017 American Geophysical Unionhttp://publications.agu.org/open- access/ This article was originally published at: http://dx.doi.org/10.1002/2014GL059856 Citation for this paper: Gleeson, T., et al. (2014), A glimpse beneath earth’s surface: Global HYdrogeology MaPS (GLHYMPS) of permeability and porosity, Geophysical Research Letters, 41, 3891–3898, doi:10.1002/2014GL059856 PUBLICATIONS Geophysical Research Letters RESEARCH LETTER A glimpse beneath earth’s surface: GLobal 10.1002/2014GL059856 HYdrogeology MaPS (GLHYMPS) Key Points: of permeability and porosity • Mean global permeability is consistent with previous estimates of shallow crust Tom Gleeson1, Nils Moosdorf 2, Jens Hartmann2, and L. P. H. van Beek3 • The spatially-distributed mean porosity of the globe is 14% 1Department of Civil Engineering, McGill University, Montreal, Quebec, Canada, 2Institute for Geology, Center for Earth • Maps will enable groundwater in land 3 surface, hydrologic and climate models System Research and Sustainability, University of Hamburg, Hamburg, Germany, Department of Physical Geography, Faculty of Geosciences, Utrecht University, Utrecht, Netherlands Correspondence to: Abstract The lack of robust, spatially distributed subsurface data is the key obstacle limiting the T. -
Port Silt Loam Oklahoma State Soil
PORT SILT LOAM Oklahoma State Soil SOIL SCIENCE SOCIETY OF AMERICA Introduction Many states have a designated state bird, flower, fish, tree, rock, etc. And, many states also have a state soil – one that has significance or is important to the state. The Port Silt Loam is the official state soil of Oklahoma. Let’s explore how the Port Silt Loam is important to Oklahoma. History Soils are often named after an early pioneer, town, county, community or stream in the vicinity where they are first found. The name “Port” comes from the small com- munity of Port located in Washita County, Oklahoma. The name “silt loam” is the texture of the topsoil. This texture consists mostly of silt size particles (.05 to .002 mm), and when the moist soil is rubbed between the thumb and forefinger, it is loamy to the feel, thus the term silt loam. In 1987, recognizing the importance of soil as a resource, the Governor and Oklahoma Legislature selected Port Silt Loam as the of- ficial State Soil of Oklahoma. What is Port Silt Loam Soil? Every soil can be separated into three separate size fractions called sand, silt, and clay, which makes up the soil texture. They are present in all soils in different propor- tions and say a lot about the character of the soil. Port Silt Loam has a silt loam tex- ture and is usually reddish in color, varying from dark brown to dark reddish brown. The color is derived from upland soil materials weathered from reddish sandstones, siltstones, and shales of the Permian Geologic Era. -
Hydraulic and Structural Design of Navigational Locks
nvironm E en l & ta Dhanuka et al., J Civil Environ Eng 2018, 8:1 i l iv E C n f g o i n DOI: 10.4172/2165-784X.1000297 l Journal of Civil & Environmental e a e n r r i n u g o J ISSN: 2165-784X Engineering Research Article Open Access Hydraulic and Structural Design of Navigational Locks Amit Dhanuka1*, Shivendra Kumar Agrawal2 and Honey Mehra1 1Howe Projects Engineering Pvt Ltd, Ahmedabad, Gujarat, India 2Department of Irrigation and Hydraulics, Punjab Engineering College, Chandigarh, India Abstract Navigation lock is a structure in the waterway provided to create a safe navigation passage between two water pools which are not at the same level. The reason for difference in water levels can be natural such as tidal variations or can be manmade such as construction of dam or barrage across the river. The main components of Navigation lock comprise of approach channels, lock pit, filling/emptying arrangement. Design of lock depends on lockage time, water level variations, Lock capacity requirements, design vessel size. filling/emptying system shall be designed to work under gravity flow without any pumping requirements. Filling/emptying system is chosen to get appropriate filling/ emptying time. The optimum time for filling and emptying is generally kept between 8.0-10.0 minutes. The size of filling culverts are so computed to attain the optimum time for filling/emptying. Every lock is unique in terms of its geology, location, size, requirements and water level differences. Here typical design aspects of a navigational Lock in inland waterway have been described. -
Water Navigation
US Army Corps of Engineers NAVIGATION is travel or transportation over water. Many different kinds of boats and ships are used on rivers and oceans to move people and products from one place to another. River Vessels: ACTIVITY Poster Series Navigation was extremely important for foreign and domestic trade and travel in the early Comparing Different Modes of Transportation days of our country before cars, trucks, trains, and airplanes were invented. In those days, The most common way of transporting products on rivers is by TOW. A tow consists of one This poster is the sixth in a series of water-resources education posters developed through rivers were used as "roads" to connect inland settlements to river and coastal ports. Com TOWBOAT and one or more BARGEs. Towboats push different kinds of barges, depending on the the Water Resources Education Initiative. The Water Resources Education Initiative is a munities established at these commercial ports became important economic, cultural, and cargo. Three of the four basic types of barges are shown below. The fourth type is a DECK barge, Introduction cooperative effort between public and private education interests. Partners in the program include which carries almost any kind of equipment, materials, or products that can be tied down and do not the U.S. Geological Survey and the U.S. Fish and Wildlife Service of the U.S. Department of the social hubs in the development of our Nation. Transportation oi domestic cargo by barge is relatively slow, but it is efficient and cost effective Many of the products we use and eat today are still transported by vessels on deep need protection from the weather. -
International Society for Soil Mechanics and Geotechnical Engineering
INTERNATIONAL SOCIETY FOR SOIL MECHANICS AND GEOTECHNICAL ENGINEERING This paper was downloaded from the Online Library of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). The library is available here: https://www.issmge.org/publications/online-library This is an open-access database that archives thousands of papers published under the Auspices of the ISSMGE and maintained by the Innovation and Development Committee of ISSMGE. Interaction between structures and compressible subsoils considered in light of soil mechanics and structural mechanics Etude de l’interaction sol- structures à la lumière de la mécanique des sols et de la mécanique des stuctures Ulitsky V.M. State Transport University, St. Petersburg, Russia Shashkin A.G., Shashkin K.G., Vasenin V.A., Lisyuk M.B. Georeconstruction Engineering Co, St. Petersburg, Russia Dashko R.E. State Mining Institute, St. Petersburg, Russia ABSTRACT: Authors developed ‘FEM Models’ software, which allows solving soil-structure interaction problems. To speed up computation time this software utilizes a new approach, which is to solve a non-linear system using a conjugate gradient method skipping intermediate solution of linear systems. The paper presents a study of the main soil-structure calculations effects and contains a basic description of the soil-structure calculation algorithm. The visco-plastic soil model and its agreement with in situ measurement results are also described in the paper. RÉSUMÉ : Les auteurs ont développé un logiciel aux éléments finis, qui permet de résoudre des problèmes d’interactions sol- structure. Pour l’accélération des temps de calcul, une nouvelle approche a été utilisée: qui consiste a résoudre un système non linéaire par la méthode des gradients conjugués, qui ne nécessite pas la solution intermédiaire des systèmes linéaires. -
Controls on Carbon Accumulation and Storage in the Mineral Subsoil Beneath Peat in Lakkasuo Mire, Central Finland
European Journal of Soil Science, June 2003, 54, 279–286 Controls on carbon accumulation and storage in the mineral subsoil beneath peat in Lakkasuo mire, central Finland J. T URUNEN &T.R.MOORE Department of Geography and the Centre for Climate and Global Change Research, McGill University, 805 Sherbrooke Street West, Montre´al, Que´bec H3A 2K6, Canada Summary What processes control the accumulation and storage of carbon (C)in the mineral subsoil beneath peat? To find out we investigated four podzolic mineral subsoil profiles from forest and beneath peat in Lakkasuo mire in central boreal Finland. The amount of C in the mineral subsoil ranged from 3.9 to 8.1 kg mÀ2 over a thickness of 70 cm and that in the organic horizons ranged from 1.8 to 144 kg mÀ2. Rates of increase of subsoil C were initially large (14 g mÀ2 yearÀ1)as the upland forest soil was paludified, but decreased to < 2gmÀ2 yearÀ1 from 150 to 3000 years. The subsoils retained extractable aluminium (Al)but lost iron (Fe)as the surrounding forest podzols were paludified beneath the peat. A stepwise, ordinary least-squares regression indicated a strong relation (R2 ¼ 0.91)between organic C concentration of 26 podzolic subsoil samples and dithionite–citrate–bicarbonate-extractable Fe (nega- tive), ammonium oxalate-extractable Al (positive) and null-point concentration of dissolved organic C (DOCnp)(positive).We examined the ability of the subsoil samples to sorb dissolved organic C from a solution derived from peat. Null-point concentration of dissolved C (DOCnp)ranged from 35 to 83 mg lÀ1, and generally decreased from the upper to the lower parts of the profiles (average E, B and À1 C horizon DOCnp concentrations of 64, 47 and 42 mg l ). -
Soil Test Handbook for Georgia
SOIL TEST HANDBOOK FOR GEORGIA Georgia Cooperative Extension College of Agricultural & Environmental Sciences The University of Georgia Athens, Georgia 30602-9105 EDITORS: David E. Kissel Director, Agricultural and Environmental Services Laboratories & Leticia Sonon Program Coordinator, Soil, Plant, & Water Laboratory TABLE OF CONTENTS INTRODUCTION .......................................................................................................................................................2 SOIL TESTING...........................................................................................................................................................4 SOIL SAMPLING .......................................................................................................................................................4 SAMPLING TOOLS ......................................................................................................................................................5 SIZE OF AREA TO SAMPLE..........................................................................................................................................5 Traditional Methods.............................................................................................................................................5 Precision Agriculture Methods.............................................................................................................................5 AREAS NOT TO SAMPLE ............................................................................................................................................5 -
Undrained Pore Pressure Development on Cohesive Soil in Triaxial Cyclic Loading
applied sciences Article Undrained Pore Pressure Development on Cohesive Soil in Triaxial Cyclic Loading Andrzej Głuchowski 1,* , Emil Soból 2 , Alojzy Szyma ´nski 2 and Wojciech Sas 1 1 Water Centre-Laboratory, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland 2 Department of Geotechnical Engineering, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland * Correspondence: [email protected]; Tel.: +48-225-935-405 Received: 5 July 2019; Accepted: 5 September 2019; Published: 12 September 2019 Abstract: Cohesive soils subjected to cyclic loading in undrained conditions respond with pore pressure generation and plastic strain accumulation. The article focus on the pore pressure development of soils tested in isotropic and anisotropic consolidation conditions. Due to the consolidation differences, soil response to cyclic loading is also different. Analysis of the cyclic triaxial test results in terms of pore pressure development produces some indication of the relevant mechanisms at the particulate level. Test results show that the greater susceptibility to accumulate the plastic strain of cohesive soil during cyclic loading is connected with the pore pressure generation pattern. The value of excess pore pressure required to soil sample failure differs as a consequence of different consolidation pressure and anisotropic stress state. Effective stresses and pore pressures are the main factors that govern the soil behavior in undrained conditions. Therefore, the pore pressure generated in the first few cycles plays a key role in the accumulation of plastic strains and constitutes the major amount of excess pore water pressure. Soil samples consolidated in the anisotropic and isotropic stress state behave differently responding differently to cyclic loading. -
The Montreal/Lake Ontario Section of the Seaway
THE MONTREAL/LAKE ONTARIO SECTION OF THE SEAWAY he St. Lawrence Seaway, in its broadest of the deep waterway, the St. Lawrence Seaway sense, is a deep waterway extending some proper extends from Montreal to Lake Erie. 3,700 km (2,340 miles) from the Atlantic T The Montreal/Lake Ontario section Ocean to the head of the Great Lakes, at the encompasses a series of 7 locks from Montreal heart of North America. Strictly speaking, how- (Quebec) to Iroquois (Ontario) enabling ships to ever, within the meaning of the legislation which navigate between the lower St. Lawrence River provided for the construction and maintenance and Lake Ontario. Laker under Mercier Bridge 1 HISTORY he opening of the Seaway, in April of 1959, The building of the Erie Canal, in the marked the full realization of a 400 year-old United States, early in the 19th century, provided T dream. In the early part of the 16th century, the incentive for the construction of additional and Jacques Cartier, the French explorer, was turned deeper canals and locks along the St. Lawrence. back by the rushing waters of the Lachine Rapids, The American waterway, which offered a fast, just west of what is now Montreal, and thus denied uninterrupted link between the growing industrial his dream of finding the Northwest Passage and the heartland of North America and the Atlantic Ocean route to the East. At various times during the inter- through New York posed a serious threat to vening 300 years, canals have been dug and locks Canadian shipping and, in particular, to the develop- built around the natural barriers to navigation in the ment of the City of Montreal as a major port. -
Small Scale Dredging of Lakes and Streams
STATE OF WISCONSIN DEPARTMENT OF NATURAL RESOURCES GENERAL PERMIT FOR SMALL SCALE DREDGING OF LAKES AND STREAMS PERMITTEE: The General Public in Wisconsin PERMIT NO.: GP17-2017-WI (WDNR-GP17-2017) ISSUING OFFICE: Waterways & Wetland Protection Section, Bureau of Watershed Management, Water Division, Wisconsin Department of Natural Resources (DNR or Department) ISSUANCE DATE: 06/30/2017 EXPIRATION DATE: 06/30/2022 GENERAL PERMIT AUTHORIZATIONS: In compliance with the provision(s) of Wis. Stats. 30.20(1)(b), no person may remove any material from the bed of a natural navigable lake or navigable stream unless an individual or a general permit has been issued under s. 30.20 or authorization has been granted by the legislature. Wis. Stats. s. 30.206(1)(a) requires and authorizes the Department to issue general permits that authorize any person in the State of Wisconsin to perform work in accordance with the terms and conditions of the general permit specified below after satisfying all applicable permit terms and conditions. Please refer to the following sections of this permit for the specific eligibility standards, application requirements, certification requirements and responsibilities, conditions, findings of fact, conclusions of law, and definitions required by WDNR-GP17-2017. Note: Projects involving the removal and lease or sale of any material from the bed of any navigable lake or of any outlying waters are ineligible for this general permit and must obtain a contract from the department under Wis. Stats. 30.20(2)(a) and (b). OTHER AUTHORIZATIONS NECESSARY: WDNR-GP17-2017 authorizations are subject to all applicable terms and conditions specified in this permit. -
The Pore Water Pressure and Settlement Characteristics of Soil Improved by Combined Vacuum and Surcharge Preloading
The Pore Water Pressure and Settlement Characteristics of Soil Improved by Combined Vacuum and Surcharge Preloading Jie Peng, Wen Guang Ji, Neng Li, Hao Ran Jin 1. Key Laboratory for Ministry of Education for Geo-mechanics and Embankment Engineering, Hohai University, Nanjing, 210098, China 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China ABSTRACT This study examines the pore water pressure and settlement characteristics of soil improved by combined vacuum and surcharge preloading based on two field tests. It discusses and compares methods of computing settlement and the degree of consolidation between combined vacuum and surcharge preloading and surcharge preloading alone as well. The non- uniform change of in the underground pore water pressure and the change in water depth indicates that the directly effective range of vacuum pumping in this paper should reach 18 m below the surface and that the range of the decline in the pore water pressure during vacuum preloading increases with decreasing depth below the surface. The groundwater table level declines during the process of vacuum preloading, and the restoration of the negative pore water pressure following unloading requires a period of time, as with the dispersion of the positive excess pore water pressure under surcharge preloading. The combination of vacuum and surcharge load can increase both the rate of the soil settlement and the total soil settlement; however, the settlement increment caused by the vacuum load will be less than that caused by the real surcharge load, and the surface settlement of combined vacuum and surcharge preloading is more uniform than that of surcharge preloading. -
Soil Judging Guide
New Hammpshirree Asssociatiionn of Conservaation Disttrriiccttss The New Hampshire SoilSoil JudgingJudging GuideGuide THE NEW HAMPSHIRE SOIL JUDGING GUIDE ACKNOWLEDGEMENTS The NH Association of Conservation Districts wishes to acknowledge the following organizations for their support of New Hampshire’s soil judging effort. USDA – Natural Resources Conservation Service Future Farmers of America Students NH Association of Conservation Districts UNH Cooperative Extension Society of Soil Scientists of Northern New England Private Consulting Soil Scientists Conservation District Managers Reprinted September 2001 Revised March 1995 Revised March 1996 2 THE NEW HAMPSHIRE SOIL JUDGING GUIDE ACKNOWLEDGEMENTS ..........................................................................................2 Introduction .........................................................................................................4 The Goals of the NH Soil Judging Contest____________________________________________________4 The Use of This Guide ____________________________________________________________________5 PART 1 – Physical Features of the Soil....................................................................6 Soil Profile and Soil Layers ________________________________________________________________6 Texture ________________________________________________________________________________7 Hardpan _______________________________________________________________________________9 Permeability ____________________________________________________________________________9