http://www.ntis.gov/rss/RSSNTISCategoryList.aspxNational Technical Reports Libraryen(c) 2008, National Technical Information Service. All rights reserved.5http://www.ntis.gov/images/logoRSS.jpghttp://www.ntis.govThis final report summarizes five years worth of work in evaluating the applicability and performance of bioretention best management practices (BMPs) for highway environments in Texas. Within the five-year time frame, the research team did a literat ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107085Fish passage conditions through a Kaplan turbine and spillway fish weir at Foster Dam, located on the South Santiam River in Linn County, Oregon, were evaluated by Pacific Northwest National Laboratory for the U.S. Army Corps of Engineers, Portland D ...http://www.ntis.gov/search/product.aspx?ABBR=DE20131067960This report describes the formulation of the SEDZLJ sediment transport model, coupling of the model with the ICM eutrophication model, validation of the combined codes on a simplified grid, and application of the combined codes to a prototype system. ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572122Groundwater is the main source of drinking water for the majority of the U.S. population. Unfortunately, groundwater is susceptible to contamination from major sources, such as storage tanks, hazardous waste sites, landfills, and septic systems. Poll ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571582Digital flood-inundation maps for a reach of Killbuck Creek near the Village of Killbuck, Ohio, were created by the U.S. Geological Survey (USGS), in cooperation with Holmes County, Ohio. The inundation maps depict estimates of the areal extent of fl ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107006Flood-frequency information is important in the Central Valley region of California because of the high risk of catastrophic flooding. Most traditional flood-frequency studies focus on peak flows, but for the assessment of the adequacy of reservoirs, ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107376Chiloquin Dam was constructed in 1914 on the Sprague River near the town of Chiloquin, Oregon. The dam was identified as a barrier that potentially inhibited or prevented the upstream spawning migrations and other movements of endangered Lost River ( ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107018Executive Order (EO) 13514, Federal Leadership in Environmental, Energy, and Economic Performance expanded on the energy reduction and environmental performance requirements of EO 13423, Strengthening Federal Environmental, Energy, and Transportation ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571664In this study, we evaluate the possibility of monitoring soil moisture variation using tomographic ground penetrating radar travel time data through Bayesian inversion, which is integrated with entropy memory function and pilot point concepts, as wel ...http://www.ntis.gov/search/product.aspx?ABBR=DE20131069207Applied Pavement Technology, Inc. (APTech), with assistance from Robinson Engineering Company, updated the airport pavement management system (APMS) for the Iowa Department of Transportation (Iowa DOT). During this project, pavement conditions at Est ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107273A nationwide study to better define triangular-hydrograph statistics for use with runoff-quality and flood-flow studies was done by the U.S. Geological Survey (USGS) in cooperation with the Federal Highway Administration. Although dhe triangular hydr ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107362The Wisconsin Department of Natural Resources is charged with oversight of dam operations throughout Wisconsin and is considering modifications to the operating orders for the Rest Lake Dam in Vilas County, Wisconsin. State law requires that the oper ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013106350This research investigated the use of the flow number in asphalt concrete mixture design and acceptance. It included: (1) a review of completed research concerning the flow number and the effect of mixture composition on rutting resistance, (2) an ev ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107116This research was aimed to: (1) investigate the effect of changes in mixture composition on the flow number and rutting resistance of HMA mixtures from Wisconsin. (2) evaluate the rutting resistance of mixtures used at intersections. (3) recommend im ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107117Concentrations of nitrogen, phosphorus, and suspended sediment are measured at the U.S. Geological Survey streamgage at Conowingo Dam at the downstream end of the Susquehanna River Basin in Maryland, where the river flows into the Chesapeake Bay. Dur ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013106356The HHE Program evaluated concerns about injuries to an interment crew at a cemetery. Investigators spoke with employees about their health and safety concerns and measured the distance employees had to reach to operate equipment controls. Most opera ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107105The objective is to study turbulent flow and sediment transport near dike structures of various geometries through an integrated laboratory experimental, numerical modeling, and field application. Major accomplishment includes: (1) developed a two-di ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571845Perchlorate is an issue in drinking water because of its high solubility and mobility, known effects on thyroid hormone production, and treatment cost. The need for perchlorate treatment is nationwide and especially acute in the southwestern United S ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571600Previous research has demonstrated the efficacy of various commercial admixtures for rapid setting concrete in cold weather environments, but this research has mostly focused on gathering data on too large a time window (more than 7 days) and focuses ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571771Shoreline and beach evolution for the barrier islands fronting Mississippi Sound are driven by longshore transport processes associated with storm and normal wave and current conditions. Although beach erosion and washover deposition are processes th ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572117Accurate predictions of the total rate of longshore sand transport (LST) and its cross-shore distribution pattern in the surf zone are central to many coastal engineering studies. Present understanding and methods for calculating the LST rate are lar ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572092Methods for estimating the magnitude and frequency of floods in California that are not substantially affected by regulation or diversions have been updated. Annual peak-flow data through water year 2006 were analyzed for 771 streamflow-gaging statio ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107363A series of mine-blast loading experiments were conducted where the soil moisture content, plate standoff distance, and plate shape (flat and V- shaped) were varied. Three experiments were conducted for each test configuration to quantify repeatabili ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571638In 2008, the NYS Department of Transportation installed a wildlife barrier along NYS Route 30 in Tupper Lake, Franklin County, NY. The major objectives of the study that is the subject of this report were to: evaluate the effectiveness of the Route 3 ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107115This report, the third in a series documenting a study of St. Johns County, Florida, describes the application of GenCade to the study area as part of a greater Regional Sediment Management (RSM) study. This study illustrates the use of GenCade, a co ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571753SERDP project SI-1399 carried out an empirically-based study using in situ measurements to characterize and quantify dust emissions from unique Department of Defense sources operating during testing and training maneuvers on U.S. military installatio ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571509Supporting a U.S. Navy initiative to provide expedient logistical operations for the U.S. Arctic coastal region, the Army s Cold Regions Research and Engineering Laboratory (CRREL), accompanied CDR Eric Buch, USN, on 12 July 2011, for a fact finding ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571581Channel instability is a serious problem throughout the United States (U.S.). The magnitude of this problem is illustrated in the Corps of Engineers final report to Congress for the Streambank Erosion Control Evaluation and Demonstration Program, whi ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571746The Coastal Engineering Technical Note (CETN) herein provides information and procedures for analyzing instantaneous measurements of currents and suspended sand to estimate longshore sand transport during storms. The information and procedures descri ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572035Prestressed Concrete (PC) I-girders are used extensively as the primary superstructure components in Texas highway bridges. A simple semi-empirical equation was developed at the University of Houston (UH) to predict the shear strength of PC I-girders ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107086In the United States, regulatory seismic codes (for example, California Building Code) require at least two sets of horizontal ground-motion components for three-dimensional (3D) response history analysis (RHA) of building structures. For sites withi ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013106704SIGAR took steps this quarter to boost our work tempo and sharpen our focus on the most important programs and problems. We issued 11 written products--the most ever in a quarter since SIGAR's formation. These products include audits, inspections, Co ...http://www.ntis.gov/search/product.aspx?ABBR=ADA571599The U.S. Army Corps of Engineers (USACE) has constructed a wide variety of civil works structures. Due to age and other factors, many of these structures have deteriorated to a point that they need varying levels of maintenance and repair (M&R). Stee ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572118Level-up patching is a common corrective maintenance activity in Texas performed by most districts. It involves laying down a thin asphalt mix layer over an existing pavement (rigid or flexible) in areas of sagging or rutting to improve the ride scor ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107089This document establishes Total Maximum Daily Loads (TMDLs) for two non-tidal portions of the Lower Choptank River watershed: an unnamed tributary of La Trappe Creek (UTLTC) and a pond into which the UTLTC flows (hereinafter referred to as the UTLTC ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107022Washingtons airport system represents a tremendous capital investment and plays a critical role in the economic health of the state. As this system has aged, the upkeep of the existing pavements has become increasingly important. Therefore, the Washi ...http://www.ntis.gov/search/product.aspx?ABBR=PB2013107272The Coastal and Hydraulics Engineering Technical Note (CHETN) herein evaluates selected available formulas for predicting wave transmission at reef breakwaters and more conventional multilayer structures, leading to recommendations for the most appro ...http://www.ntis.gov/search/product.aspx?ABBR=ADA572091