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In response to worsening flooding conditions exacerbated by climate change and to address flooding in low-income and environmentally vulnerable areas, the Town of Ashland contacted JMT to develop a flood resiliency plan for the Town. JMT initially assisted the Town in preparing the application for grant funds via the Virginia Community Flood Preparedness Fund. The […]
There exists much uncertainty in the watershed management community – unprecedented flooding events, rising seal levels, evolving regulations, funding accessibility, and even the Covid pandemic. Virginia municipalities are tasked with maintaining and improving water-related infrastructure. They must make sound decisions to best utilize funds amid deep uncertainty associated with climate change as well as population, […]
Natural and nature-based features are a pillar of the City of Virginia Beach’s recently completed “Sea Level Wise” Adaptation Strategy which is now adopted into the City’s Comprehensive Plan. This project involves the design and permitting of a network of marsh terraces within Bonney Cove, located in Back Bay in southern Virginia Beach. This is […]
Washington, DC is uniquely situated at the confluence of two tidal rivers and is vulnerable to flooding from three different sources: riverine, tidal/coastal storm surge, and interior. As emphasized in the DC Department of Energy & Environment’s (DOEE) 2015 Climate Projections & Scenario Development report, all three types of flooding in the District are intensifying […]
Ramboll has undertaken several resiliency projects across Europe and around the world, and several climate adaptation projects are now underway in the Americas, as well. Once limited to hardscape infrastructure, resiliency projects are moving rapidly toward green infrastructure, as it is often more cost effective and takes into account whole community solutions instead of focusing […]
In recent years, flooding along Otterdale Road has occurred during periods of heavy rainfall leaving neighborhoods completely landlocked. This Design Build project consists of three different locations associated with the stream crossings of Blackman Creek, Horsepen Creek, and Otterdale Branch with Otterdale Road where bridge replacements are being proposed. The purpose of this project is […]
Base Level Engineering (BLE) flood models for 13 watersheds covering more than 11K square miles of the panhandle was developed for the Northwest Florida Water Management District (NWFWMD). These BLE processes followed large-scale, automated engineering methodologies to produce flood hazard information. The purpose of NWFMWD’s BLE project is to develop updated flood studies using high […]
The site design for a new 2-million-gallon finished water ground storage tank and booster pump station in a fully developed area of the City posed a stormwater runoff management challenge. The storage tank and booster pump station are located on a former bank site that featured no existing stormwater infrastructure and simply sheet flowed runoff […]
Many existing earthen dams in Virginia do not meet requirements of the Virginia Dam Safety Act. Reasons for failing to meet Dam Safety Act requirements include insufficient spillway capacity and inadequate embankment height for the required design event. Inadequate spillways and embankment heights increase the likelihood of dam overtopping. Dam overtopping can lead to partial […]
Due to climate change, the shape of future extreme precipitation likeliness is uncertain. Global climate models are not intended to capture local extremes, and different climate models provide different results. This is problematic for public works departments, transportation agencies, and other groups responsible for water resources infrastructure, because extreme event estimates drive engineering design. However, […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
