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Category: Publications: Construction Engineering and Research Laboratory (CERL)
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  • Assessment of LEED 2.2 and LEED 2009 Implementation in Meeting Army SDD Policy Goals

    Abstract: This report describes our analysis of how Army Leadership in Energy and Environmental Design (LEED®) certification data demonstrates success in meeting Army sustainable design and development (SDD) policy goals. Specifically, the research team evaluated how LEED 2.2 and v2009 credits related to Army SDD policy objectives, then identified trends over time in Army LEED 2.2 and v2009-rated Projects. This is a historical assessment of actual project data, captured before the Army transitioned to the newer LEED v4. This report explains how implementation of LEED NC 2.2 and v2009 credits helped Army projects achieve SDD policy objectives. Emphasis was placed on LEED credits that directly related to SDD policy requirements which Army construction and major renovation projects needed to meet. Figures throughout the report illustrate how many Army LEED certified projects earned LEED New Construction credits 2.2 from FY2009 to FY2016 and LEED v2009 credits from FY2011 to FY2016. Some figures also rank the LEED 2.2 and LEED v2009 credits from most popular to least popular. Implementation of the Army’s 2013 SDD policy requiring LEED certification has allowed analysis of how Army military construction (MILCON) projects achieved energy, water, and waste goals on a large scale.
  • Fort Hunter Liggett: A History and Analysis

    Abstract: The US Congress codified the National Historic Preservation Act of 1966 (NHPA), the nation’s most effective cultural resources legislation to date, mostly through establishing the National Register of Historic Places (NRHP). The NHPA requires Federal agencies to address their cultural resources, which are defined as any prehistoric or historic district, site, building, structure, or object. Section 110 of the NHPA requires Federal agencies to inventory and evaluate their cultural resources, and Section 106 requires them to determine the effect of Federal undertakings on those potentially eligible for the NRHP. Fort Hunter Liggett is located on California’s Central Coast within Monterey County. The fort has been used as a training facility for large-scale maneuvers and live-fire exercises since its establishment as a US Army training facility in 1941. The periods of significance for Criterion A are: from 1769 to 1833, relating to the founding and development of Mission San Antonio de Padua; from 1834 to 1923, relating to Euro-American land grants and ranchos; from 1923 to 1940, relating to Hearst’s purchase of the property and subsequent development; from 1940 to 1945, relating to the establishment of the Hunter Liggett Military Reservation (HLMR) and activities related to WWII; from 1959 to 1970, relating to the establishment and buildup of CDEC; and from 1975 to 1980, relating to HLMR’s redesignation as Fort Hunter Liggett and associated development. This report provides a comprehensive historic context for ranges, features, and buildings at Fort Hunter Liggett in support of Section 110 of the NHPA.
  • Evaluating a Multi-Panel Air Cathode Through Electrochemical and Biotic Tests

    Abstract: To scale up microbial fuel cells (MFCs), larger cathodes need to be developed that can use air directly, rather than dissolved oxygen, and have good electrochemical performance. A new type of cathode design was examined here that uses a “window-pane” approach with fifteen smaller cathodes welded to a single conductive metal sheet to maintain good electrical conductivity across the cathode with an increase in total area. Abiotic electrochemical tests were conducted to evaluate the impact of the cathode size (exposed areas of 7 cm², 33 cm², and 6200 cm²) on performance for all cathodes having the same active catalyst material. Increasing the size of the exposed area of the electrodes to the electrolyte from 7 cm² to 33 cm² (a single cathode panel) decreased the cathode potential by 5%, and a further increase in size to 6200 cm² using the multi-panel cathode reduced the electrode potential by 55% (at 0.6 A m⁻²), in a 50 mM phosphate buffer solution (PBS). In 85 L MFC tests with the largest cathode using wastewater as a fuel, the maximum power density based on polarization data was 0.083 ± 0.006Wm⁻² using 22 brush anodes to fully cover the cathode, and 0.061 ± 0.003Wm⁻² with 8 brush anodes (40% of cathode projected area) compared to 0.304 ± 0.009Wm⁻² obtained in the 28 mL MFC. Recovering power from large MFCs will therefore be challenging, but several approaches identified in this study can be pursued to maintain performance when increasing the size of the electrodes.
  • Automation of Gridded HEC-HMS Model Development Using Python: Initial Condition Testing and Calibration Applications

    Abstract: The US Army Corps of Engineers’s (USACE) Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS) rainfall-runoff model is widely used within the research community to develop both event-based and continuous rainfall-runoff models. The soil moisture accounting (SMA) algorithm is commonly used for long-term simulations. Depending on the final model setup, 12 to 18 parameters are needed to characterize the modeled watershed’s canopy, surface, soil, and routing processes, all of which are potential calibration parameters. HEC-HMS includes optimization tools to facilitate model calibration, but only initial conditions (ICs) can be calibrated when using the gridded SMA algorithm. Calibrating a continuous SMA HEC-HMS model is an iterative process that can require hundreds of simulations, a time intensive process requiring automation. HEC-HMS is written in Java and is predominantly run through a graphical user interface (GUI). As such, conducting a long-term gridded SMA calibration is infeasible using the GUI. USACE Construction Engineering Research Laboratory (CERL) has written a workflow that utilizes the existing Jython application programming interface (API) to batch run HEC-HMS simulations with Python. The workflow allows for gridded SMA HEC-HMS model sensitivity and calibration analyses to be conducted in a timely manner.
  • Network Development and Autonomous Vehicles: A Smart Transportation Testbed at Fort Carson

    Abstract: In this work, a smart transportation testbed was utilized at Fort Carson to demonstrate three use cases for the primary purpose to plan, develop, demonstrate, and employ autonomous vehicle technologies at military installations and within the surrounding communities to evaluate commercially available Connected and Automated Vehicles and the potential to reduce base operating costs, improve safety and quality of life for military service members and their families, and deliver services more efficiently and effectively. To meet this purpose, an automated vehicle shuttle, an unmanned aerial system, and a wireless network were used and tested during the project. Results for the automated shuttle indicated that de-spite the quantity of data generated by operations, the contractors may not be ready to share information in a readily usable format. Additionally, successful use by the public is predicated on both knowing their mobility patterns and staff members promoting trust in the technology to prospective riders. Results for the unmanned aerial system showed successful identification of foreign object debris and runway cracks at the airfield. The wireless network is now operational and is used for additional work which utilizes the installed traffic cameras.
  • Numerical Modeling of Mesoscale Infrasound Propagation in the Arctic

    Abstract: The impacts of characteristic weather events and seasonal patterns on infrasound propagation in the Arctic region are simulated numerically. The methodology utilizes wide-angle parabolic equation methods for a windy atmosphere with inputs provided by radiosonde observations and a high-resolution reanalysis of Arctic weather. The calculations involve horizontal distances up to 200 km for which interactions with the troposphere and lower stratosphere dominate. Among the events examined are two sudden stratospheric warmings, which are found to weaken upward refraction by temperature gradients while creating strongly asymmetric refraction from disturbances to the circumpolar winds. Also examined are polar low events, which are found to enhance negative temperature gradients in the troposphere and thus lead to strong upward refraction. Smaller-scale and topographically driven phenomena, such as low-level jets, katabatic winds, and surface-based temperature inversions, are found to create frequent surface-based ducting out to 100 km. The simulations suggest that horizontal variations in the atmospheric profiles, in response to changing topography and surface property transitions, such as ice boundaries, play an important role in the propagation.
  • Old Post Reevaluation, Fort Huachuca, AZ

    Abstract: The US Congress codified the National Historic Preservation Act of 1966 (NHPA), the nation’s most effective cultural resources legislation to date, mostly through establishing the National Register of Historic Places (NRHP). The NHPA requires Federal agencies to address their cultural resources, which are defined as any prehistoric or historic district, site, building, structure, or object. Section 110 of the NHPA requires Federal agencies to inventory and evaluate their cultural resources, and Section 106 requires them to determine the effect of Federal undertakings on those potentially eligible for the NRHP. Fort Huachuca is situated at the foot of the Huachuca Mountains in southern Cochise County, Arizona. It is located approximately 15 miles north of the border with Mexico and 75 miles southeast of Tucson. It was founded in 1877 as a frontier cavalry fort and remains one of the oldest military installations in the West. The objective of this report is to inventory the real property within Fort Huachuca’s Old Post, the historic core of the installation. Each resource is enumerated and accompanied by a list of reports discussing its potential NHL or NRHP eligibility. Subsequently, each resource is accompanied by a short description, which includes its location and current status within the recently created Old Post Historic District.
  • White Sands Missile Range Thurgood Canyon Watershed: Analysis of Range Road 7 for Development of Best Management Practices and Recommendations

    Abstract: Thurgood Canyon, located on White Sands Missile Range (WSMR), contains an alluvial fan that is bisected by a primary installation road and is in the proximity of sensitive fish habitats. This project was initiated to determine if and how sensitive fish habitats at the base of the fan are impacted by the existing drainage infrastructure and to assess the condition and sustainability of the existing transportation infrastructure. Findings show that the current drainage infrastructure maintains flow energy and sediment carrying capacity further down the fan than would occur in its absence. However, frequent to moderately rare (small to medium) flood events dissipate over 2 km from sensitive habitat, and overland flow and sediment do not reach the base of the fan. Controlled flow diversion is recommended upstream of the road to mitigate infrastructure or habitat impacts during very rare (very large) flood events. A comprehensive operation and management approach is presented to achieve sustainable transportation infrastructure and reduce the likelihood of impacts to the sensitive habitat.
  • Fort McCoy Firing Ranges and Military Training Lands: A History and Analysis

    Abstract: The US Congress codified the National Historic Preservation Act of 1966 (NHPA), the nation’s most effective cultural resources legislation to date, mostly through establishing the National Register of Historic Places (NRHP). The NHPA requires Federal agencies to address their cultural resources, which are defined as any prehistoric or historic district, site, building, structure, or object. Section 110of the NHPA requires Federal agencies to inventory and evaluate their cultural resources, and Section 106 requires them to determine the effect of Federal undertakings on those potentially eligible for the NRHP. Fort McCoy is entirely within Monroe County in west-central Wisconsin. It was first established as the Sparta Maneuver Tract in 1909.The post was renamed Camp McCoy in 1926. Since 1974, it has been known as Fort McCoy. This report provides a historic context for ranges, features, and buildings associated with the post’s training lands in support of Section 110 of the NHPA.
  • Standard Operating Procedures for Open-Air Solid Waste Burning in Contingency Locations

    Abstract: Service engineer doctrine and field manuals, such as Army Techniques Publication 3-34.40, Technical Manual 5-634, and Army Regulation 420-1, offer guidance on solid waste management but do not provide the level of detail and practical guidance for open-air burning of solid waste to reduce risk to the Warfighter. Studies have shown that there could be ill health effects to service members from exposure to toxins from open-air burning. Further practical guidance is necessary to ensure that if there are no other means available for solid waste disposal, the risks associated with open-air burning are minimized as much as possible during contingency operations. Commands have limited resources and reduced personnel available to study which open-air burning procedures are optimal based on readiness and mission requirements. Planning for efficiency and risk avoidance in open-air burning operations includes several facets (e.g., site planning, processing, and recordkeeping considerations). This special report provides operational guidance to minimize risk of open-air burning for the Warfighter and other joint service personnel, particularly when there is no other alternative to open-air burning, during initial phase operating a burn pit or for waste management planning to establish standard operating procedures.