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Interior Drainage Hydrology & Hydraulics for the Design of a Federal Flood Risk Management Project in Downtown Norfolk

The U.S. Army Corps of Engineers (USACE) in cooperation with the City of Norfolk intends to build a coastal storm risk management project along the City’s Eastern Branch of Elizabeth River shoreline. This project along with other City’s flood mitigation projects such as the St. Paul’s Blue/Greenway transformation project could potentially impact the interior drainage […]


Otterdale Road Drainage Improvement Project

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 […]


Northwest Florida Base Level Engineering (BLE) Data Viewer: Providing Online Access to Complex Data Rich Flood Hazard Information through a Simple Visualization Utility to Support Community Resilience Activities

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 […]


Oakdale Drainage Improvement Project: Overcoming Flood Mitigation Challenges in a Century Old Neighborhood

The Oakdale drainage area is located in the South Norfolk Historic District in the City of Chesapeake. This stormwater basin is primarily comprised of residential properties that were developed in the first half of the 20th century. In recent years, this area has begun to experience a higher frequency of flooding events, likely due to […]


Developing Comprehensive Neighborhood Solutions in Southern Virginia Beach Feels Like Chasing Your Tailwater

The City of Virginia Beach has completed the Upper West Neck Creek Drainage Basin Stormwater Master Plan (UWNC DB SWMP) which encompasses approximately 20 square miles and includes over 100 simulated flood areas (SFAs). This is the first large drainage basin completed since the Linkhorn Bay Drainage Basin Stormwater Master Plan case study (approximately 3 […]


Finding the Elusive Sites for Hydrodynamic Separators Using Stormwater Master Plan Models

Due to the increasing cost of stormwater treatment, the City of Virginia Beach Department of Public Utilities (City) evaluated the requirements for developing a nutrient offset program. When a stormwater management facility (SWMF) can be incorporated into a site design, it typically comes at a significant cost. Creating regional SWMFs to offset the City’s facility […]


The VA IFLOWS Program – The Path Forward

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 […]