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21

Rockin’ the Centre Ridge BMP: Elevating Function and Enhancing Benefits Through Retrofit Design

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Under a Stream Stabilization/Restoration, Environmental, Permitting & Ancillary Services Basic Ordering Agreement, Stantec was awarded a Task Order by the Fairfax County Department of Public Works and Environmental Services (DPWES) to provide Stream Restoration and Stormwater Best Management Practice (BMP) Retrofit Design and Construction Administration services for the Centre Ridge Basin Retrofit project in Fairfax […]

22

Adventures of Finding, Planning, Designing and Constructing TMDL Projects in a Rapidly Developing County

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In a rapidly developing regions, finding and implementing TMDL projects can be challenging.  Once a project finds support and proceeds forward, the watershed and site conditions can often change in the time it takes to plan, fund, design and construct. Several projects in Loudoun County have been impacted by development (privately funded and publicly funded) […]

23

Benefits of Hazard Assessment using SQRA for Rural Dams

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Decades-old dams often become higher risk as they age, but owners might have limited resources for assessing the actual risks. A semi-quantitative risk assessment (SQRA) offers a solution. South River Dam #19 (SR-19), a flood control structure built in 1956 by the USDA-Soil Conservation Service near Waynesboro, Virginia, was designed as a low hazard structure […]

24

Evaluating the Hydrology, Water-Quality, and Ecological Communities of Two Restored Urban-Suburban Streams in Northern Virginia

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The U.S. Geological Survey, in cooperation with Resource Protection Group, Inc., is conducting an intensive stream monitoring program of two restored, small (< 1.3 mi2), urban-suburban streams in Reston, Virginia. In 2010, both stream channels were restored to stabilize the banks, preventing channel incision, mass wasting of the banks, and the attendant deleterious sediment effects. […]

25

Rainy Day at the Skate Park: Stormwater Management at the Providence Road Offline Storage Facility

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Hampton Road Sanitation District’s (HRSD’s) Providence Road Offline Storage Facility is a 5.2 MG wet weather storage facility designed to help reduce sanitary sewer overflows. The facility was implemented within Virginia Beach’s Woodstock Park and incorporated a variety of new and improved park amenities, including a 30,000 square foot skate park integrated with the storage […]

26

Lessons Learned From Developing A Master Stormwater Model

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To understand how a stormwater drainage system functions, calculations and analysis must be performed.  This analysis and calculations can be performed via a large number of methodologies.  Over the last 7 years, using PCSWMM, the City of Virginia Beach has developed a SWMM model of its Primary Stormwater Management System (PSMS). Each portion of developing […]

27

Six of a Kind – Principal Spillway Conduit Sliplining of the Beautiful Run Watershed Dams

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The flood control dams of the Beautiful Run Watershed were constructed during the 1960’s by the National Resources Conservation Service (NRCS) in Madison County, Virginia.  The dams are sponsored by the Culpeper Soil and Water Conservation District (SWCD).  Six of the eight total Beautiful Run dams were originally constructed with bituminous coated corrugated metal pipe […]

28

National Watershed Research Network from the Center for Watershed Protection

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The National Watershed Research Network (NWRN) is a collaborative that helps communities achieve clean water and healthy watersheds by funding applied research on topics determined by its members. Together, we aim to provide insights into the impacts of land use activities on water resources, and identify regulations, programs, and practices that can best prevent or […]

29

Bridge Scour: What to Consider

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The most common cause of bridge failures over streams is from floods scouring bed material around bridge foundations. Scour is the engineering term for the erosion caused by water of the soil surrounding a bridge foundation (piers and abutments). Bridge scour evaluation requires multidisciplinary inputs. This presentation will focus on the formation of bridge scour, […]

30

A Fresh, New Look to Annual Reporting, Capitalizing on Technology to Meet Regulatory Compliance

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The Municipal Separate Storm Sewer System (MS4) regulations have been a driving force behind stormwater programs for years.   Permittees develop their MS4 program plan according to the Minimum Control Measures (MCMs) outlined in their permit and typically use various tracking methodologies to log their progress whether in either a series of excel tables, scanned hardcopies […]