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The James River Treatment Plant (JRTP), Newport News, VA situates at the mouth of the Warwick River, a partially mixed estuarine tributary of the James River. Objectives of this study are to characterize mixing, transport and flux of total phosphorus (TP) loading from the JRTP’s effluent discharge in the estuarine cove of Warwick River, and […]
Under the U.S EPA’s Chesapeake Bay Total Maximum Daily Load (TMDL) established in 2010 to restore and protect the bay, many state and local entities are required to implement changes in their processes to lower both Point Source (PS) and Non-Point Source (NPS) loading contributions. In this study, effect of a PS loading modification from […]
Design criteria for dams has evolved over time, often in response to dam failure events. While the industry, regulators, and dam owners have worked together to improve overall dam safety in Virginia, recent dam failures across the United States and other countries should prompt all to consider the lessons that can be learned and applied. For example, near-failure and failure events at structures such […]
The National Flood Insurance Program is phasing in a new way of measuring flood risk and calculating flood insurance premiums. Here’s a hint-we will no longer be using Flood Insurance Rate Maps to rate flood insurance policies! Join us for an overview of our new methodology, new rating variables, and what it means to NFIP […]
Recent history has demonstrated how quickly and unexpectedly conditions and priorities can change, which can quickly diminish the value of a conventional stormwater master plan. New and increasingly accessible approaches including 2D modeling, dynamic dashboards, and interactive visualizations provide increased utility and longevity of master planning efforts, better addressing stormwater challenges and communicating those solutions […]
The Integrated Flood Observing and Warning System (IFLOWS) has been a program housed within the Virginia Department of Emergency Management (VDEM) for 30+ years. The network was originally designed and funded by the National Weather Service (NWS) in the late 1970s and early 1980s in several Appalachian states including VA, WV, and KY. The primary […]
The City of Winchester owns and operates the Percy D. Miller Water Treatment Plant in Warren County, Virginia which pulls source raw water from the North Fork of the Shenandoah River. The Plant, and the associated low head sill dam, raw water intake and pumping station, were constructed in the 1970s and are the sole […]
Loudoun County has developed a web-based geospatial solution called the Condition Assessment Tool (CAT) to enable standardized and timely collection of information for stormwater structures, in a way that is streamlined, easy to use and that supports compliance and reporting. The CAT is designed to help the County’s stormwater engineers prioritize, distribute, assign, review and […]
Virginia Soil and Water Conservation Districts received funding for the installation of remote monitoring equipment. This presentation will discuss the various challenges faced when selecting, installing, and using remote monitoring equipment on dams. The remote monitoring program has installed 18 units and looking to install an additional 60 units.
Routine inspection and maintenance activities are essential for preserving the stability and functionality of Stormwater Management Facilities (SWMFs), sometimes referred to as Best Management Practices (BMPs). The goal of this presentation is to describe methods used to establish a modern SWMF/BMP Inspection and Maintenance (I&M) Program based on Brown and Caldwell’s firsthand experience. Establishing an […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
