The Dolphin Lane Sewer Sag Project in Fairfax County, VA installed approximately 115 feet of new 8-inch ductile iron pipe to replace an existing sanitary sewer line containing a 9-inch sag. The project team installed two standard manholes, one dog house manhole, replaced a lateral, and added non-shrink grout to an abandoned line. The project was substantially completed on November 28, 2016 to upgrade the sewer system on Dolphin Lane.
Bullneck Run at Spring Hill Rec Center Stream Restoration Project June 2014Fairfax County
This document summarizes a public meeting to discuss a stream restoration project on Bull Neck Run at the Spring Hill Recreation Center. The meeting outlined Fairfax County's watershed planning efforts, presented the project objectives and existing conditions, and proposed improvements and example projects. Attendees were invited to ask questions. The project aims to provide water quality controls and protect channel capacity as required for a recreation center expansion. Next steps include design, permitting, public feedback, construction, and long-term maintenance.
Accotink Creek Watershed Project Wakefield Park NorthFairfax County
The Wakefield Park North Stream Restoration project in Fairfax County, Virginia was completed ahead of schedule and under budget. The project restored 900 linear feet of an unnamed tributary to Accotink Creek using natural channel design techniques. This included establishing a stable channel, reconnecting it to the floodplain, adding grade control structures, and creating wetland areas to improve habitat and reduce pollution entering Accotink Creek.
The Wakefield Park South Stream Restoration project in Fairfax County, VA was completed ahead of schedule and on budget. The project restored 2,700 linear feet of streams that feed into Accotink Creek using natural channel design techniques. This included establishing stable channels and floodplains, installing structures to reduce erosion and improve habitat, and reducing nitrogen, phosphorus, and sediment runoff into Accotink Creek. The project was a collaboration between Fairfax County agencies and private contractors.
Scotts Run Tributary at Windy Hill Road: Stream Stabilization ProjectFairfax County
This document summarizes a stream stabilization project along Scotts Run in Fairfax County, VA. The project aims to stabilize 650 linear feet of stream bank and bed to reduce sediment and nutrient inputs. It will improve habitat and control flooding. Construction is scheduled to begin in spring 2017 and take 3-4 months. It will include installing structures like plunge pools, cross vanes, and rock weirs. Native vegetation will be planted afterward. The project meets regulatory requirements and aims to improve watershed conditions through erosion control and flood mitigation.
The Bradley Acres Pond Retrofit project in Fairfax County, VA converted an existing dry pond into a constructed wetland pond. The project removed the existing trickle ditch, excavated three shallow marshes, constructed a step pool conveyance channel and plunge pool, and installed two stone weir structures. Native plants were seeded and trees/plugs were replanted. The project provides improved downstream water quality by removing nutrients and suspended solids from stormwater runoff.
Annual Contract for Stream and Water Quality Improvements: Golden Woods Pond ...Fairfax County
The Golden Woods Pond Retrofit project in Fairfax County, Virginia involved upgrading an existing stormwater management pond to reduce pollution and improve water quality. The project included removing a concrete ditch, constructing stone pools and a bioswale, upgrading the pond and control structure, replacing a culvert, and restoring the surrounding area. The project was completed on time and on budget in August 2016. It is estimated to reduce nitrogen, phosphorus and suspended solids pollution in the nearby Pond Branch Watershed by over 129 pounds, 10 pounds, and 7,500 pounds respectively each year.
Dead Run Stream Restoration Public Meeting April 23, 2014Fairfax County
This document summarizes a public meeting about a stream restoration project along Dead Run in Fairfax County, Virginia. The meeting outlined Fairfax County's stormwater management program and watershed planning efforts. It then provided details on the existing conditions of Dead Run, several restoration options being considered, and examples of previous similar projects. Attendees were invited to ask questions about the Dead Run Stream Restoration Project and next steps in the planning and implementation process.
The Dolphin Lane Sewer Sag Project in Fairfax County, VA installed approximately 115 feet of new 8-inch ductile iron pipe to replace an existing sanitary sewer line containing a 9-inch sag. The project team installed two standard manholes, one dog house manhole, replaced a lateral, and added non-shrink grout to an abandoned line. The project was substantially completed on November 28, 2016 to upgrade the sewer system on Dolphin Lane.
Bullneck Run at Spring Hill Rec Center Stream Restoration Project June 2014Fairfax County
This document summarizes a public meeting to discuss a stream restoration project on Bull Neck Run at the Spring Hill Recreation Center. The meeting outlined Fairfax County's watershed planning efforts, presented the project objectives and existing conditions, and proposed improvements and example projects. Attendees were invited to ask questions. The project aims to provide water quality controls and protect channel capacity as required for a recreation center expansion. Next steps include design, permitting, public feedback, construction, and long-term maintenance.
Accotink Creek Watershed Project Wakefield Park NorthFairfax County
The Wakefield Park North Stream Restoration project in Fairfax County, Virginia was completed ahead of schedule and under budget. The project restored 900 linear feet of an unnamed tributary to Accotink Creek using natural channel design techniques. This included establishing a stable channel, reconnecting it to the floodplain, adding grade control structures, and creating wetland areas to improve habitat and reduce pollution entering Accotink Creek.
The Wakefield Park South Stream Restoration project in Fairfax County, VA was completed ahead of schedule and on budget. The project restored 2,700 linear feet of streams that feed into Accotink Creek using natural channel design techniques. This included establishing stable channels and floodplains, installing structures to reduce erosion and improve habitat, and reducing nitrogen, phosphorus, and sediment runoff into Accotink Creek. The project was a collaboration between Fairfax County agencies and private contractors.
Scotts Run Tributary at Windy Hill Road: Stream Stabilization ProjectFairfax County
This document summarizes a stream stabilization project along Scotts Run in Fairfax County, VA. The project aims to stabilize 650 linear feet of stream bank and bed to reduce sediment and nutrient inputs. It will improve habitat and control flooding. Construction is scheduled to begin in spring 2017 and take 3-4 months. It will include installing structures like plunge pools, cross vanes, and rock weirs. Native vegetation will be planted afterward. The project meets regulatory requirements and aims to improve watershed conditions through erosion control and flood mitigation.
The Bradley Acres Pond Retrofit project in Fairfax County, VA converted an existing dry pond into a constructed wetland pond. The project removed the existing trickle ditch, excavated three shallow marshes, constructed a step pool conveyance channel and plunge pool, and installed two stone weir structures. Native plants were seeded and trees/plugs were replanted. The project provides improved downstream water quality by removing nutrients and suspended solids from stormwater runoff.
Annual Contract for Stream and Water Quality Improvements: Golden Woods Pond ...Fairfax County
The Golden Woods Pond Retrofit project in Fairfax County, Virginia involved upgrading an existing stormwater management pond to reduce pollution and improve water quality. The project included removing a concrete ditch, constructing stone pools and a bioswale, upgrading the pond and control structure, replacing a culvert, and restoring the surrounding area. The project was completed on time and on budget in August 2016. It is estimated to reduce nitrogen, phosphorus and suspended solids pollution in the nearby Pond Branch Watershed by over 129 pounds, 10 pounds, and 7,500 pounds respectively each year.
Dead Run Stream Restoration Public Meeting April 23, 2014Fairfax County
This document summarizes a public meeting about a stream restoration project along Dead Run in Fairfax County, Virginia. The meeting outlined Fairfax County's stormwater management program and watershed planning efforts. It then provided details on the existing conditions of Dead Run, several restoration options being considered, and examples of previous similar projects. Attendees were invited to ask questions about the Dead Run Stream Restoration Project and next steps in the planning and implementation process.
The Big Rocky Run Phase II Stream Restoration project in Fairfax County, Virginia was completed in June 2014. The project restored over 2,500 linear feet of Big Rocky Run and its riparian corridor using natural channel design principles. This included installing structures to create a stable stream morphology, restoring floodplain habitat, and planting native vegetation. The project aims to improve water quality by reducing total phosphorus, nitrogen, and suspended solids in the stream.
The document describes the Sequoia Park Pond (0705DP) Retrofit Project in Fairfax County, VA, which retrofitted an existing stormwater pond to provide improved water quality benefits through the construction of micro-pools, rock weirs, and other features; it provides details on the project overview, team members, and pre-existing and new conditions of the pond and surrounding area; additional information can be found by contacting the Fairfax County Department of Public Works and Environmental Services.
Colvin Run Phase I Lake Fairfax Park Stream Restoration ProjectFairfax County
The Colvin Run Phase I Lake Fairfax Park Stream Restoration Project restored 2,220 feet of Colvin Run Branch in Fairfax County, VA through natural channel design. This included improving stream morphology, reducing erosion, re-aligning the stream, creating wetlands, replacing a culvert, and landscaping with native plants. The project team included various Fairfax County departments and was completed in August 2017. It is estimated to reduce pollution in the stream annually.
Rocky Run Tributary at Hickory Hollow Lane Stream Restoration Feb. 2021Fairfax County
The Rocky Run Tributary at Hickory Hollow Lane project goals are to stabilize the stream, reduce excess sediment from flowing downstream; improve aesthetics, reduce hazards, reconnect the stream to the floodplain, improve the riparian buffer and reduce road flooding, among other goals.
Huntington Levee Community Meeting: Oct. 26. 2016Fairfax County
The document outlines plans for the Huntington Levee Project which aims to protect homes from flooding through the construction of an earthen levee and pump station, and discusses the project background, design features, construction process, community amenities, flood modeling results, permitting, schedule, environmental considerations, and community outreach efforts. Construction is scheduled to begin in early 2017 and be completed by spring 2019. The project team is committed to ongoing communication and addressing community concerns throughout construction.
Piney Run at Lake Werowance Stream Restoration ProjectFairfax County
Improve watershed conditions and reduce downstream impacts through….
Stabilize the channel
Reduce erosion
Protect vegetation
Restore native vegetation & riparian buffer
Connect and enhance wetlands within former lakebed
Improve water quality
Draft TMDL Action Plans for Sediment, Bacteria, and PCBs Public MeetingFairfax County
This document summarizes a public meeting to discuss draft action plans for sediment, bacteria, and PCBs total maximum daily loads (TMDLs) in Fairfax County, Virginia. It provides an overview of the county's municipal separate storm sewer system permit requirements and TMDL development process. The draft action plans address approved TMDLs for sediment impairment in Bull Run, Difficult Run, and Popes Head Creek, and bacteria impairment in several waterbodies. The sediment plan focuses on retrofit and stream restoration projects to meet load reduction targets. The bacteria plan emphasizes identifying and eliminating illicit discharges through inspection and monitoring programs.
Pike Branch at Wilton Road Stream Stabilization ProjectFairfax County
This document provides information about a stream stabilization project along Pike Branch in Fairfax County, VA. The project aims to stabilize approximately 1,300 feet of stream between Telegraph Road and Wilton Road to improve watershed conditions, reduce flooding and erosion, create wildlife habitat, and enhance water quality. The document discusses regulatory drivers for stormwater management, details the project objectives and timeline, describes existing conditions along the stream, and outlines proposed stabilization structures and retaining wall repairs. Next steps outlined include completing design plans and scheduling construction.
Flatlick Branch - Phase 1 Stream RestorationFairfax County
The Flatlick Branch - Phase I Stream Restoration project involved restoring over 1,850 linear feet of stream and tributaries. It upgraded an existing stormwater basin to a constructed wetland, replaced a failed stream crossing, and sewer main. Native plants were installed, and the project provides pollutant removal and water quality benefits. Substantially completed in December 2016, it was a partnership between Fairfax County agencies and the Park Authority.
Crook Branch at Mantua Elementary School Stream Restoration ProjectFairfax County
The document discusses a planned stream restoration project along Crook Branch in Fairfax County, VA. It provides background on Fairfax County's stormwater management program and watershed planning efforts. It then discusses the Accotink Creek Watershed Management Plan and identifies Crook Branch as a priority restoration project. The document reviews the existing degraded conditions along Crook Branch and outlines the planned design process to reconnect the stream to its floodplain and stabilize eroding areas using natural channel design approaches and stream reinforcement structures.
This project involved stabilizing 1,500 linear feet of Tripps Run Stream through the installation of in-stream structures like step pools and cross vane structures. Native vegetation was also planted to enhance the riparian buffer. The completion of this project will reduce erosion and improve water quality by decreasing phosphorous by 15.5 pounds per year and nitrogen by 290 pounds per year. Work included reconstructing the channel and replacing a failing concrete wall with an imbricated stone wall.
This document provides details about a pond retrofit project in Fairfax County, VA called Towlston Meadows Sec 3 Pond 1. The purpose of the project was to increase water quality and add an access road for maintenance. Work included regrading the pond, adding micro pools, increasing storage volume, and constructing an all-weather access road. Native plants were also installed to restore the landscape. The project was completed on time and on budget in April 2014.
Miller Heights Outfall Rehabilitation Project 2014Fairfax County
The Miller Heights Outfall Rehabilitation Project was completed on time and within budget. The project involved stabilizing over 250 feet of eroded channel near Miller Road and Miller Heights Road. Natural stream channel design was used, including rock cross vanes, weirs, and plantings to reduce erosion and improve water quality. The project addressed safety concerns and stabilized the channel while providing environmental benefits.
Columbia Road/Randolph Court Stream Restoration July 2015Fairfax County
This document summarizes a proposed stream restoration project in Fairfax County, VA. It describes the existing failing gabion walls and eroding stream banks. The proposed project would replace the gabion walls with more natural stream restoration structures like cross vanes, root wads, and boulder toes to stabilize the banks. It would also add planted buffer zones and benches along the stream. The project requires designing temporary construction access given the steep slopes, and coordinating with other planned restoration work. It outlines the conceptual design, approval, and construction schedule.
Pimmit Run Tributary at George Marshall High School Stream Restoration 9/29/2020Fairfax County
The virtual community meeting held on Sept 29, 2020 advised residents about the proposed stream restoration in a Pimmit Run tributary at the George Marshall High School in Fairfax County, VA.
Dead Run Stream Restoration Public Meeting June 9, 2015Fairfax County
This document summarizes a public meeting held on June 9, 2015 to discuss the Dead Run Segments 2/3 Stream Restoration Project in Fairfax County, VA. The project aims to restore 1,800 linear feet of Dead Run stream through McLean Central Park and Dead Run Stream Valley Park. Key topics discussed include the project timeline and extent, responses to community issues raised, next steps including forming a citizen task force, and potential design refinements to minimize tree and canopy loss while improving water quality and habitat.
Restore ~1,400 feet by returning the form and function of the channel to dynamic equilibrium and improve the ecological processes of the riparian corridor.
Stabilize the eroding stream banks
Water quality improvement
Sustainability
Infrastructure protection
Habitat improvement
Tucker Avenue Neighborhood Stormwater Improvement Preliminary Design ReviewFairfax County
Identify and evaluate house flooding and public safety concerns
Improve drainage conditions to convey 100-year storm if feasible
Reduce and treat stormwater runoff at the source
Improve water quality and stream protection
Use innovative & functional designs
Make improvements compatible with characteristics of neighborhood
Partner with community to develop sound, cost effective solutions that can be collaboratively implemented and maintained
Build on lessons learned to help improve site development process for infill development
Paul Springs Segment 1 & 2 Stream RestorationFairfax County
Restoration of approximately 1,800 linear feet of headwater tributaries of Paul Spring Branch that flow through Charles Goodman Park and Brickelmaier Park, and adjacent private properties.
The Crestleigh Way Outfall Restoration project in Fairfax County, VA involved constructing a plunge pool and step pool system to stabilize an eroded outfall channel near Crestleigh Way for public safety and water quality improvements. A reinforced concrete pipe was installed with a plunge pool, four single step cross vane rock structures were built, and native plants were planted. The project reduces nitrogen, phosphorus, and solid pollutants entering local waterways.
A presentation about aquatic ecosystem restoration in Massachusetts. Presented by Tim Purinton, director of the Massachusetts Division of Ecological Restoration, during the Buzzards Bay Coalition's 2012 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The Big Rocky Run Phase II Stream Restoration project in Fairfax County, Virginia was completed in June 2014. The project restored over 2,500 linear feet of Big Rocky Run and its riparian corridor using natural channel design principles. This included installing structures to create a stable stream morphology, restoring floodplain habitat, and planting native vegetation. The project aims to improve water quality by reducing total phosphorus, nitrogen, and suspended solids in the stream.
The document describes the Sequoia Park Pond (0705DP) Retrofit Project in Fairfax County, VA, which retrofitted an existing stormwater pond to provide improved water quality benefits through the construction of micro-pools, rock weirs, and other features; it provides details on the project overview, team members, and pre-existing and new conditions of the pond and surrounding area; additional information can be found by contacting the Fairfax County Department of Public Works and Environmental Services.
Colvin Run Phase I Lake Fairfax Park Stream Restoration ProjectFairfax County
The Colvin Run Phase I Lake Fairfax Park Stream Restoration Project restored 2,220 feet of Colvin Run Branch in Fairfax County, VA through natural channel design. This included improving stream morphology, reducing erosion, re-aligning the stream, creating wetlands, replacing a culvert, and landscaping with native plants. The project team included various Fairfax County departments and was completed in August 2017. It is estimated to reduce pollution in the stream annually.
Rocky Run Tributary at Hickory Hollow Lane Stream Restoration Feb. 2021Fairfax County
The Rocky Run Tributary at Hickory Hollow Lane project goals are to stabilize the stream, reduce excess sediment from flowing downstream; improve aesthetics, reduce hazards, reconnect the stream to the floodplain, improve the riparian buffer and reduce road flooding, among other goals.
Huntington Levee Community Meeting: Oct. 26. 2016Fairfax County
The document outlines plans for the Huntington Levee Project which aims to protect homes from flooding through the construction of an earthen levee and pump station, and discusses the project background, design features, construction process, community amenities, flood modeling results, permitting, schedule, environmental considerations, and community outreach efforts. Construction is scheduled to begin in early 2017 and be completed by spring 2019. The project team is committed to ongoing communication and addressing community concerns throughout construction.
Piney Run at Lake Werowance Stream Restoration ProjectFairfax County
Improve watershed conditions and reduce downstream impacts through….
Stabilize the channel
Reduce erosion
Protect vegetation
Restore native vegetation & riparian buffer
Connect and enhance wetlands within former lakebed
Improve water quality
Draft TMDL Action Plans for Sediment, Bacteria, and PCBs Public MeetingFairfax County
This document summarizes a public meeting to discuss draft action plans for sediment, bacteria, and PCBs total maximum daily loads (TMDLs) in Fairfax County, Virginia. It provides an overview of the county's municipal separate storm sewer system permit requirements and TMDL development process. The draft action plans address approved TMDLs for sediment impairment in Bull Run, Difficult Run, and Popes Head Creek, and bacteria impairment in several waterbodies. The sediment plan focuses on retrofit and stream restoration projects to meet load reduction targets. The bacteria plan emphasizes identifying and eliminating illicit discharges through inspection and monitoring programs.
Pike Branch at Wilton Road Stream Stabilization ProjectFairfax County
This document provides information about a stream stabilization project along Pike Branch in Fairfax County, VA. The project aims to stabilize approximately 1,300 feet of stream between Telegraph Road and Wilton Road to improve watershed conditions, reduce flooding and erosion, create wildlife habitat, and enhance water quality. The document discusses regulatory drivers for stormwater management, details the project objectives and timeline, describes existing conditions along the stream, and outlines proposed stabilization structures and retaining wall repairs. Next steps outlined include completing design plans and scheduling construction.
Flatlick Branch - Phase 1 Stream RestorationFairfax County
The Flatlick Branch - Phase I Stream Restoration project involved restoring over 1,850 linear feet of stream and tributaries. It upgraded an existing stormwater basin to a constructed wetland, replaced a failed stream crossing, and sewer main. Native plants were installed, and the project provides pollutant removal and water quality benefits. Substantially completed in December 2016, it was a partnership between Fairfax County agencies and the Park Authority.
Crook Branch at Mantua Elementary School Stream Restoration ProjectFairfax County
The document discusses a planned stream restoration project along Crook Branch in Fairfax County, VA. It provides background on Fairfax County's stormwater management program and watershed planning efforts. It then discusses the Accotink Creek Watershed Management Plan and identifies Crook Branch as a priority restoration project. The document reviews the existing degraded conditions along Crook Branch and outlines the planned design process to reconnect the stream to its floodplain and stabilize eroding areas using natural channel design approaches and stream reinforcement structures.
This project involved stabilizing 1,500 linear feet of Tripps Run Stream through the installation of in-stream structures like step pools and cross vane structures. Native vegetation was also planted to enhance the riparian buffer. The completion of this project will reduce erosion and improve water quality by decreasing phosphorous by 15.5 pounds per year and nitrogen by 290 pounds per year. Work included reconstructing the channel and replacing a failing concrete wall with an imbricated stone wall.
This document provides details about a pond retrofit project in Fairfax County, VA called Towlston Meadows Sec 3 Pond 1. The purpose of the project was to increase water quality and add an access road for maintenance. Work included regrading the pond, adding micro pools, increasing storage volume, and constructing an all-weather access road. Native plants were also installed to restore the landscape. The project was completed on time and on budget in April 2014.
Miller Heights Outfall Rehabilitation Project 2014Fairfax County
The Miller Heights Outfall Rehabilitation Project was completed on time and within budget. The project involved stabilizing over 250 feet of eroded channel near Miller Road and Miller Heights Road. Natural stream channel design was used, including rock cross vanes, weirs, and plantings to reduce erosion and improve water quality. The project addressed safety concerns and stabilized the channel while providing environmental benefits.
Columbia Road/Randolph Court Stream Restoration July 2015Fairfax County
This document summarizes a proposed stream restoration project in Fairfax County, VA. It describes the existing failing gabion walls and eroding stream banks. The proposed project would replace the gabion walls with more natural stream restoration structures like cross vanes, root wads, and boulder toes to stabilize the banks. It would also add planted buffer zones and benches along the stream. The project requires designing temporary construction access given the steep slopes, and coordinating with other planned restoration work. It outlines the conceptual design, approval, and construction schedule.
Pimmit Run Tributary at George Marshall High School Stream Restoration 9/29/2020Fairfax County
The virtual community meeting held on Sept 29, 2020 advised residents about the proposed stream restoration in a Pimmit Run tributary at the George Marshall High School in Fairfax County, VA.
Dead Run Stream Restoration Public Meeting June 9, 2015Fairfax County
This document summarizes a public meeting held on June 9, 2015 to discuss the Dead Run Segments 2/3 Stream Restoration Project in Fairfax County, VA. The project aims to restore 1,800 linear feet of Dead Run stream through McLean Central Park and Dead Run Stream Valley Park. Key topics discussed include the project timeline and extent, responses to community issues raised, next steps including forming a citizen task force, and potential design refinements to minimize tree and canopy loss while improving water quality and habitat.
Restore ~1,400 feet by returning the form and function of the channel to dynamic equilibrium and improve the ecological processes of the riparian corridor.
Stabilize the eroding stream banks
Water quality improvement
Sustainability
Infrastructure protection
Habitat improvement
Tucker Avenue Neighborhood Stormwater Improvement Preliminary Design ReviewFairfax County
Identify and evaluate house flooding and public safety concerns
Improve drainage conditions to convey 100-year storm if feasible
Reduce and treat stormwater runoff at the source
Improve water quality and stream protection
Use innovative & functional designs
Make improvements compatible with characteristics of neighborhood
Partner with community to develop sound, cost effective solutions that can be collaboratively implemented and maintained
Build on lessons learned to help improve site development process for infill development
Paul Springs Segment 1 & 2 Stream RestorationFairfax County
Restoration of approximately 1,800 linear feet of headwater tributaries of Paul Spring Branch that flow through Charles Goodman Park and Brickelmaier Park, and adjacent private properties.
The Crestleigh Way Outfall Restoration project in Fairfax County, VA involved constructing a plunge pool and step pool system to stabilize an eroded outfall channel near Crestleigh Way for public safety and water quality improvements. A reinforced concrete pipe was installed with a plunge pool, four single step cross vane rock structures were built, and native plants were planted. The project reduces nitrogen, phosphorus, and solid pollutants entering local waterways.
A presentation about aquatic ecosystem restoration in Massachusetts. Presented by Tim Purinton, director of the Massachusetts Division of Ecological Restoration, during the Buzzards Bay Coalition's 2012 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The restoration of this degraded, urban stream yields ecological function and value while providing high school students with hands-on environmental science experience and an enriching, living outdoor classroom. Participants will learn from this real-life example how city officials can work with a local school districts to empower students to restore habitat, while ensuring the protection of downstream property and preventing flooding.
A healthy stream has stable banks and sediment transport, with diverse in-stream habitat and flows. Key factors include stable streambeds and natural floodplains, as well as vegetated riparian buffers. Unstable streams can aggrade or degrade from changes in watershed runoff, sediment loads, slopes, and floodplain or riparian disturbances. Assessing stability uses metrics like entrenchment ratios, meander widths, and bank erosion hazard indices.
High Performance Trees for Conservation, Restoration, Mitigation, Wetlands, Urban and Habitat using the patented, non-GMO "Root Production Method®" achieving 90+% survival; up to 3x growth of bare root seedlings and early flowering, seed, nut and fruit production
The document discusses principles and strategies for implementing permaculture design in urban settings. It describes observing the space and resources available, envisioning how to meet needs regeneratively through food production, water harvesting, and community engagement. Specific techniques are outlined like sheet mulching, guilds, rain barrels, and reclaiming vacant lots to turn unproductive land into food forests. Resources for learning more are provided.
This document summarizes a presentation about plans to restore the Upper Pohick Creek watershed and the Harford stream specifically. It discusses the existing poor conditions of the stream including erosion, sediment deposition, and infrastructure issues. The goals of restoration are to improve water quality, habitat, and flood mitigation. A multi-step design and approval process is outlined that involves community input, data collection, concept planning, and final construction.
Colorado water conservation board and great outdoors colorado funding sources...rshimoda2014
These are two presentations from a panel moderated by Amy Beattie, Colorado Water Trust. Panelists included Josh Tenneson, Great Outdoors Colorado; Chris Sturm, Colorado Water Conservation Board; Caroline Bradford, Understanding Water Resources; Toby Sprunk, Eagle County Open Space; and Laura Makar, Pitkin County, Colorado
This document provides an overview of the Rosgen stream classification system. It describes the key factors that influence stream morphology and outlines the major stream types according to their physical characteristics such as channel geometry, slope, and landscape position. These include A, B, C, E, F, and G stream types that vary in terms of incision, width, depth, slope, and valley confinement. The Rosgen system involves measuring field parameters like entrenchment ratio, width-to-depth ratio, and substrate to classify streams.
This document discusses stream restoration and provides guidance on key considerations. It defines restoration as returning a stream to a healthy, functional state. The order of restoration priorities are listed as protect, maintain, restore, and enhance. Successful restoration requires understanding the natural complexity and dynamics of stream systems as well as meeting objectives for stability, function, and accommodation of changes over time. Careful data collection and analysis of hydrology, sediment transport, and geomorphology are crucial to restoration design. Implementation requires attention to construction techniques, habitat enhancements, and transitioning restored areas.
The document discusses various topics related to aquatic and marine ecosystems, including:
- The basic needs of aquatic biota and factors that influence their availability
- Different types of aquatic ecosystems like freshwater, estuaries, and marine ecosystems
- Characteristics of freshwater ecosystems like lakes, rivers, and how lakes are stratified
- Importance of transitional ecosystems like estuaries and wetlands
- Threats facing different marine ecosystems and how humans impact aquatic systems
- Key concepts in landscape ecology, restoration ecology, and ecosystem management
The restoration of Cheonggyecheon stream in Seoul transformed the city. The 5.8 km long stream was uncovered after being covered by an elevated highway since the 1970s. The project improved the environment, ecology and quality of life in Seoul. It attracted millions of visitors and investments, demonstrating how restoring nature in an urban center can benefit a city.
The document summarizes the Cheong Gye Cheon Restoration Project in Seoul, South Korea. The project restored a historic stream that had been covered for decades due to sanitation issues. It removed an elevated highway and reopened the stream to create an urban green space. Some key challenges addressed included reducing traffic congestion and supporting neighboring businesses. The project was completed on schedule and budget in 2005 and led to improved environmental and economic outcomes for the downtown area.
Watershed management experiences in Amhara Region, EthiopiaILRI
Presented by Fentahun Mengistu at the Stakeholders’ Workshop on Enhancing Communities’ Adaptive Capacity to Climate Change Induced Water Scarcity in Kabe Watershed, South Wollo Zone, Wollo University, Dessie, Ethiopia, 24-25 November 2011.
The document summarizes studies of urban stream revitalization projects in Kuala Lumpur, Malaysia and Seoul, South Korea. For Kuala Lumpur's Klang River, issues included pollution and declining use. The River of Life program aims to clean the river and develop its banks to increase economic activity. In Seoul, the Cheonggyecheon Stream was buried due to development but was restored in 2005. This reduced flooding, traffic, and pollution while boosting property values and tourism. Both projects show how revitalizing urban streams can improve the environment, economy and livability of cities.
Crook Branch at Mantua Elementary School Stream Restoration Community Meeting...Fairfax County
A section of Crook Branch will be restored to accomplish the following goals:
Stabilize stream
Reduce excess sediment from being transported downstream
Reduce excess nutrients from entering the waterway
Improve aesthetics
Reduce hazards (steep, eroding banks)
Reconnect stream to floodplain
Improve Riparian Buffers
Little Pimmit Run at Chesterbrook Road Stream Restoration and Sanitary Reali...Fairfax County
Chesterbrook Road Emergency Project – Summer 2019
Final Scoping Technical Memorandum – January 2020
Professional Services Contract Execution – April 2021
Community Meeting on stream restoration Pre-design/Channel alignments – April 2021
Final Preliminary Engineering Report – October 2021
Community Meeting on Sanitary Realignment Preliminary Engineering Report – October 2021
Value Engineering Study completed – November 2021
One joint study for both projects
Community Meeting with Board of Supervisor – December 2021
Community meeting – January 2022
Design Contract Development – (We are at this step)
Land Acquisition – (We are at this step)
Complete Design
Construction
Little Pimmit Run at Chesterbrook Stream Restoration Project and Little Pimmi...Fairfax County
Restore up to 7,500 feet of stream channel and tributaries
Reduce erosion and sediment transport
Install new sanitary sewers serving over 500 single family homes
Improve watershed conditions and reduce downstream impacts
Improve and protect public infrastructure
Prevent costly emergency repairs
Reduce risk to public health and the environment
Maintain close coordination with stakeholders and community
Build partnerships with local organizations
Dead Run Stream Restoration Project Meeting: Feb. 18, 2015Fairfax County
This document summarizes a public meeting to discuss a stream restoration project along Dead Run in Fairfax County, Virginia. The meeting outlined Fairfax County's watershed planning efforts, introduced the Dead Run Stream Restoration Project objectives to improve water quality and reduce pollution, and presented the proposed design which uses natural channel design principles to restore three segments of the stream in a way that minimizes tree removal and disturbance. Next steps include finalizing the preliminary design, another public meeting, final design, construction anticipated in 2017-2018, and ongoing maintenance after completion.
Hunting Creek at Fairchild MVCCA-Meeting March 7, 2018Fairfax County
This document summarizes a stream restoration project in Fairfax County, VA. The project aims to restore 1,200 feet of streams and improve water quality by reducing sediment and nutrient inputs. It will stabilize streambeds and banks, provide floodplain connectivity, and improve habitat. The presentation provides information on watershed management goals, existing stream conditions, restoration designs including typical structures, construction examples, and landscaping plans. It outlines next steps such as design reviews and permitting before anticipated construction from fall/winter 2018 to fall/winter 2019.
Paul Spring Branch at Sherwood Hall Stream Restoration ProjectFairfax County
The plan is to return the form and function of the channel to dynamic equilibrium and improve the ecological processes of the riparian corridor within the constraints of the developed landscape.
Dead Run Stream Restoration Public Meeting May 19, 2015Fairfax County
This document summarizes a public meeting for a stream restoration project on Dead Run in Fairfax County, VA. It discusses the project scope and status, concept plans to widen and stabilize the stream channel, address flooding concerns, efforts to preserve trees, and next steps. Alternative access options were presented to minimize tree removal, and buffer restoration efforts along the stream were discussed to improve habitat and water quality. Feedback from residents was addressed, and the project aims to have minimal impact on the floodplain.
Dead Run Stream Restoration Public meeting February 18, 2015Fairfax County
This document summarizes a public meeting to discuss a stream restoration project along Dead Run in Fairfax County, Virginia. The meeting outlined Fairfax County's watershed planning efforts, introduced the objectives and design principles of the Dead Run Stream Restoration Project, reviewed existing conditions, and proposed improvements. Attendees were also updated on next steps, which include completing preliminary design, holding another public meeting, final design, construction anticipated in FY2017/2018, and ongoing maintenance once complete. Questions from the public were invited.
Long Branch at Arlington Boulevard and Robin Ridge Court - Concept Design and...Fairfax County
Restore streambed and banks, ~4,500 linear feet
Reduce sediment and nutrient inputs into stream system
Installation of grade control structures, improve/correct channel dimension and alignment
Improve floodplain connectivity and ecological processes
Reduce force and volume of water within the channel during storm and flood events
Naturally process nutrients and sediments on the floodplain and within the streambed
Improve habitat for biological community
Native landscaping
Floodplain wetlands
Streambed and flow diversity
In-stream structures
Protect Infrastructure – Sanitary Sewer Lines
Channel Relocation away from sanitary sewer lines when possible
Armoring channel banks and bottom where relocation is not an option
Difficult Run at Brittenford Drive Information Meeting May 17, 2017Fairfax County
This document provides information about a proposed stream restoration project along Difficult Run in Fairfax County, VA. The project aims to restore about 3000 feet of the main channel and 1500 feet of tributaries to stabilize the streambed and banks, reduce sediment and nutrient inputs, and improve habitat. The document discusses the existing poor conditions of erosion and instability. It also outlines the proposed restoration approaches, including designs for cross sections, alignments, structures, grading plans and profiles. Timeline details are provided, with construction dependent on future funding. The overall goal is to improve watershed conditions and reduce downstream impacts.
Indian Run at Indian Run Court Stream RestorationFairfax County
This document summarizes a stream restoration project along Indian Run in Fairfax County, VA. It discusses the drivers for the project including improving water quality, safety, and complying with regulations. An overview of the watershed is provided along with existing poor conditions in the stream including erosion, exposed utilities and fallen trees. The goal is to restore 2,200 linear feet of stream by stabilizing the streambed and banks, improving habitat, reconnecting the floodplain, and protecting structures. Typical restoration structures that may be used are described such as cross vanes, root wads, and boulder toe stabilization. Next steps in the project schedule are outlined and contact information is provided for additional information.
Peyton Run at Longwood Knolls Community Meeting Oct 1, 2018Fairfax County
This project will restore up to 2,500 feet of stream on Longwood Knolls HOA and Cherry Run section 3 subdivision properties. Sediment and nutrient inputs will be reduced and habitat will be improved.
Piney Run Public Meeting 1 October 17, 2018Fairfax County
This project will restore 4,300 feet of stream on Lake Werowance Inc. and privately owned properties. Goals are stabilized stream banks and bed, reduced sediment and nutrients, improved habitat, and enhanced water quality.
Dead Run Segment One Stream Restoration ProjectFairfax County
The document summarizes a public meeting held by Fairfax County to discuss plans for restoring a segment of Dead Run stream. The project aims to create a stable stream channel that reduces erosion and improves water quality. It will involve regrading the channel, installing structures to reduce erosion, replacing trees lost to the project, and adding two pedestrian bridges and a fording area. Attendees viewed design plans, asked questions, and were invited to provide comments and tour the project site.
Accotink Tributary at Oakford Drive Stream RestorationFairfax County
This document summarizes plans to restore approximately 1,300 linear feet of the Accotink Tributary stream in Fairfax County, VA. The project aims to reduce erosion and sedimentation, improve water quality, and enhance habitat. Proposed designs include reconnecting the stream to its floodplain, installing in-stream structures like cross vanes and root wads, and planting native vegetation. Construction is expected to take 6 to 9 months following final design approval and budget allocation in early 2016. The work will help Fairfax County meet regulatory requirements while improving the local watershed and environment.
Similar to Crook Branch at Mantua Elementary School Stream Restoration Project (20)
Merrifield Nursery Emergency Gravity Sewer ReplacementFairfax County
During a routine Closed-Circuit Television (CCTV) Camera inspection by Wastewater Collection Division (WCD), it was found that 45 linear feet of 8-inch asbestos reinforced concrete pipe (RCP) between MH-292 to MH-291 was within imminent danger of failing. The bottom of the RCP was missing within the 45 linear feet of repair and the pipe was on the verge of surcharging. After an immediate pre-construction meeting with Merrifield Nursery, it was agreed to work from 6pm-10am everyday of the week to avoid disruption and potentially placing patrons at risk during the biggest time of the year for Merrifield Garden Center. The contractor mobilized to the site and began the 20-foot excavation to replace 45 linear feet of broken gravity sewer. The project started on March 14th, 2022 and was substantially complete on March 23, 2022.
The Sully Basins Stormwater Pond Retrofits project was substantially completed on April 19, 2022. The project is located within the Cub Run watershed. The project consisted of repair and enhancement of multiple stormwater basins, 0326DP, 0964DP and 1484DP. The project also included construction of new stone cascades, stone weir basin structures and the construction of wetlands with high and low marsh areas. The project will facilitate improved sediment removal and improve downstream water quality using forebays and micro pools. Aquatic and natural habitat were also added within the three basins.
Clarks Crossing Road Improvements 05-13-22Fairfax County
This document summarizes a pedestrian access improvement project along Clarks Crossing Road in Fairfax County, Virginia. The project improved pedestrian and bicycle access by constructing a missing link of sidewalk between Brookside Lane and an existing sidewalk further along Clarks Crossing Road. Work included installing sidewalk, curb ramps, drainage improvements, and milling and overlaying asphalt. The project was substantially completed in March 2022 and provides approximately 200 feet of new pedestrian access along Clarks Crossing Road.
Tysons West Wastewater Conveyance Systems Modifications Project 05-22.pptxFairfax County
Future wastewater flows in northern Fairfax County exceed existing system capacity
Treatment capacity is available in Noman M. Cole Jr. Pollution Control Plant in Lorton, VA
New pipes and pumps are needed to move future flows to treatment plant
NEXT STEPS
Field investigations / surveys
Finalize alignments and pump station layout
Use of open cut excavation
Use of trenchless methods
Easement acquisition needed
Develop traffic control plans
Description:
The project consists of a new, 23,000 square feet, two-story, four-bay fire station facility and associated improvements to the 3.3-acre site including storm water detention, landscaping and parking. The scope also included the demolition of the existing fire station, and a temporary fire station to house the Fire and Rescue Department during construction of the new facility. The key elements of the overall project include:
Scotts Run at Old Meadow Road Park Phase I and Phase II Stream RestorationFairfax County
Scotts Run @ Old Meadow Road Stream Restoration was substantially completed on March 30, 2022. The Scotts Run project consisted of restoring, enhancement, and stabilizing of approximately 2,930 linear feet of eroding stream using Natural Channel Design criteria. This project included two phases: Phase I was funded by proffers from a private development and Phase II was County funded. Also included was the removal of invasive non-native plants and the installation of new plantings to stabilize the stream and floodplain.
Sully Community Center Construction ProgressFairfax County
This document provides construction progress photos of the Sully Community Center in Fairfax County, Virginia. The photos show the ongoing construction of the building's exterior, interior spaces like the lobby, corridors, multi-purpose rooms, game room, gym, exercise room, and healthcare suite. The document was published by the Fairfax County Department of Public Works and Environmental Services to share updates on the construction of the new community center, which is scheduled to open in summer 2022.
Riverwood Community Meeting - 04-14-2022- Presentation.pptxFairfax County
The new 4-inch ductile iron force main will serve the surrounding community for the foreseeable future. Replacement of the force main will:
Reduce the level and frequency of maintenance required to keep the force main operating.
Prevent costly emergency repairs.
Provide residents with safe, reliable utility infrastructure.
Enhance the quality of life for residents.
Reduce risks to public health and the environment.
Burke Centre VRE Connector Phase IV project was substantially completed on March 7, 2022. This project enhanced the access to mass transit by creating a more direct connection from the VRE Station to the residential areas west of Premier Court. This project also connects the Oak Bluff community to the Virginia Rail Express (VRE) Burke Station and provides a multi-use shared pedestrian and bicycle trail for outdoor recreation.
Long Branch Public Meeting - FINAL - 04-11-2022Fairfax County
Overarching Project Goals:
-Achieve Long Branch Central TMDL waste load reduction requirements.
-Provide long-term stability and have low maintenance.
-Improve water quality within the Long Branch Central Watershed.
-Improve habitat and environmental health (ecological lift).
Objectives: Share our project understanding with the council and seek input on the unique opportunities and housing goals for this site that could help guide
our master planning process.
Rabbit Branch at Collingham Drive Stream Restoration - March 28, 2022.pptxFairfax County
4,800 linear feet of stream will be restored using Natural Channel Design methodologies
Pollutant reduction
1,439 lbs/total phosphorus
3,400 lbs/total nitrogen
462.1 tons of total suspended sediment
Protection of private property and public infrastructure
Increased ecological diversity with native vegetation
DEQ has awarded a SLAF grant to this project for these environmental benefits
LAKE BARTON DREDGING, RESTORATION AND RISER MODIFICATION PROJECT Fairfax County
The Lake Barton Dredging, Restoration, and Riser Modification project was substantially completed on December 29, 2021. The project is located within the Pohick Creek watershed. The project consisted of dredging and removal of approximately 19,100 cubic yards of sediment to restore the sediment trapping capacity and improve water quality. The project also included construction of new sediment forebays, in-lake haul roads, and riser modifications (new mid-level sluice gate and cold-water intake) to facilitate future maintenance, stabilize the shoreline, and improve downstream water quality. Fish habitat was also added within the lake.
Reston Arts Community Center Feasibility - Wrap UpFairfax County
This document summarizes a meeting about a proposed arts center in Reston, Virginia that would result from a proffer from Boston Properties for development of an area known as Block J. The meeting covered the background and objectives of community outreach efforts to understand needs for the arts venue. Feedback was shared from previous focus group meetings on performing arts, visual arts, and other topics. Key spaces discussed included a 500-seat theater, art studios, galleries, and support spaces. Next steps include further programming, cost estimating, and community input before potential design and construction.
Stormwater Wastewater Facility Virtual Community Meeting, March 29, 2022Fairfax County
Benefits of Consolidated Facility
Building and Site Efficiencies
Operational Efficiencies
Addresses Space Deficiencies
Addresses Renovations and Capital Renewal Requirements
for WCD
Provides for a Centrally Located Site that Accommodates Program
Consolidates Integrated Services on One Centrally Located Site
Reston Arts Center Feasibility Study Focus Group - March 28, 2022Fairfax County
This is the 4th of 5 engagement meetings. We are excited to hear from you – your preferences, priorities, questions, hopes, concerns. The information we receive today will be used to inform the space allocations and cost estimating for discussion of the proffer by Fairfax County.
Oak Marr Pump Station Rehabilitation – Construction ProjectFairfax County
Neighborhood was built in the 1980s, and the sewer infrastructure has been in operation since.
Aged pump station equipment – pumps, valves, fans, concrete, etc.
This aging equipment has the potential of causing:
Sanitary Sewer Overflows (SSO)
Sewer back-ups into homes
Environmental damages
Maintenance problems
Tucker Avenue Neighborhood Community Meeting, 03-15-2022Fairfax County
Identify and evaluate house flooding and public safety concerns
Improve drainage conditions to convey 100-year storm if feasible
Reduce and treat stormwater runoff at the source
Improve water quality and stream protection
Use resilient & functional designs
Make improvements compatible with characteristics of neighborhood
Partner with community to develop sound, cost effective solutions that can be collaboratively implemented and maintained
Build on lessons learned to help improve site development process for infill development
Reston Arts Center Feasibility - Focus Group Visual ArtsFairfax County
This document summarizes a focus group meeting to discuss needs and ideas for a proposed new arts center in Reston, Virginia. The meeting covered background on the proposed project, which would result from a development proffer. Attendees provided input through polls and discussion on desired visual arts programming, spaces, and amenities. Key priorities identified included studio space, galleries, classrooms, digital media facilities, and ensuring the center is diverse, equitable and accessible. The project team will take this community feedback into account as they continue planning.
Here is Gabe Whitley's response to my defamation lawsuit for him calling me a rapist and perjurer in court documents.
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Acolyte Episodes review (TV series) The Acolyte. Learn about the influence of the program on the Star Wars world, as well as new characters and story twists.
El Puerto de Algeciras continúa un año más como el más eficiente del continente europeo y vuelve a situarse en el “top ten” mundial, según el informe The Container Port Performance Index 2023 (CPPI), elaborado por el Banco Mundial y la consultora S&P Global.
El informe CPPI utiliza dos enfoques metodológicos diferentes para calcular la clasificación del índice: uno administrativo o técnico y otro estadístico, basado en análisis factorial (FA). Según los autores, esta dualidad pretende asegurar una clasificación que refleje con precisión el rendimiento real del puerto, a la vez que sea estadísticamente sólida. En esta edición del informe CPPI 2023, se han empleado los mismos enfoques metodológicos y se ha aplicado un método de agregación de clasificaciones para combinar los resultados de ambos enfoques y obtener una clasificación agregada.
An astonishing, first-of-its-kind, report by the NYT assessing damage in Ukraine. Even if the war ends tomorrow, in many places there will be nothing to go back to.
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Discover the essential tools and strategies for modern PR business success. Learn how to craft compelling news releases, leverage press release sites and news wires, stay updated with PR news, and integrate effective PR practices to enhance your brand's visibility and credibility. Elevate your PR efforts with our comprehensive guide.
04062024_First India Newspaper Jaipur.pdfFIRST INDIA
Find Latest India News and Breaking News these days from India on Politics, Business, Entertainment, Technology, Sports, Lifestyle and Coronavirus News in India and the world over that you can't miss. For real time update Visit our social media handle. Read First India NewsPaper in your morning replace. Visit First India.
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Crook Branch at Mantua Elementary School Stream Restoration Project
1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
January 9, 2017
Community Meeting
Mantua Elementary School Cafeteria
Crook Branch at Mantua Elementary School
Stream Restoration Project
Accotink Creek Watershed Plan Implementation
2. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Status and General Schedule
• Data Collection (Completed)
• Stream Restoration Design Process (In Progress)
– Pre-Concept Plan Development (Completed)
– Concept (35%) Design Plan Development (Currently Developing)
– Field Walk - Spring 2017
– Preliminary (65%) Design Plan Development
– Final Design Plan Development – Fall 2017
– Construction Documents
• Construction (± 12 months)
– Bidding and Contract Award
– Pardon Our Dust Community Meeting
– Construction date dependent on future funding
2
3. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Meeting Outline
3
• Site Location and Project Limits
• Discuss General Design Approach
• Review Historical Data
• Existing Conditions
• Data Collection Process
• Design Goals
• Design Philosophy and Channel Sizing
• Construction Access and Options
• Projected Tree and Trail Impacts
• Schedule
• Q&A
6. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Wetland Studies and Solutions, Inc.
Natural & Cultural Resources consulting firm
• Founded in 1991
• Consulted on 5,000+ project sites
encompassing 200,000+ acres
• 100+ staff
Expertise
• Geographic Information Systems
• Environmental Science
• Archeology
• Surveying
• Regulatory and Permit Compliance
• Environmental Engineering
• Landscape Design
• Ecosystem Restoration
Acquisition by The Davey Tree Expert Company:
• Expertise in tree protection, assessment, and analysis
• Largest employee-owned service company in U.S.
• Founded in 1880
Locations:
• Gainesville, VA
• Roanoke, VA
• Richmond, VA
• Odenton, MD
6
Virginia’s First LEED®
Gold-Certified Office
Crook Branch Restoration Project Team
– Brian Chromey, P.E.
– Mike Marsala, P.E., C.F.M.
– Aaron Estep, E.I.T.
– Matt MacFarland, E.I.T.
7. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
General Design Approach
7
• Review historical data to help understand evolution
• Data Collection
• Document existing conditions to identify design constraints and specific
goals and objectives
• Stream measurements to utilize in design process
• Stream Sizing and Design
• Channel Cross-Section
• Alignment
• Profile
• Stabilization and Flow Direction Structures
• Protection of utilities and bridges
• Vegetation
• Construction Access
• Floodplain Impacts
17. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
DESIGN GOALS
17
What are the design goals?
• General Goals
• Stabilize stream
• Reduce excess sediment from being transported downstream
• Reduce excess nutrients from entering the waterway
• Improve aesthetics
• Reduce hazards (steep, eroding banks)
• Reconnect stream to floodplain
• Improve Riparian Buffers
• Additional Project Specific Goals
• Protect valuable infrastructure – utilities and bridge
18. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Restoration Approaches
Priority 1 Restoration – Raise stream to reconnect with floodplain.
18
Fewer trees removed
Width of disturbance
Balanced cut and fill volumes
result in less waste
Before After
19. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Restoration Approaches
Priority 2 Restoration – Excavate floodplain at lower elevation.
19
Width of disturbance
Large cut volumes result in waste material
Many trees removed
Priority 3 Restoration –
Confined stream valleys.
21. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Urban Stream – Design Realities
1. Significantly more flow than rural streams.
2. Significantly more “bankfull” events than in rural watersheds.
3. Given site constraints, reinforcement is necessary.
– Rock structures – using native diabase rock
– Reinforced bed
– Heavy planting densities – native vegetation only
21
Snakeden Branch (after 1 year)Rabbit Branch (after 7 months)
22. DPWES Stormwater Planning Division
Crook Branch Stream Restoration
Stream Structures and Bed Reinforcement
22
Reinforced Bed
Step Pools Cross Vanes
28. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Design – Proposed Access
28
Construction
Entrance 1
Construction
Entrance 2
29. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Design - Tree Impacts
29
Tree impact considerations
Ecological / Habitat Value
• Size / Diameter
• Higher - Climax species: Oaks, Hickory, Holly (mast
producers, long-lived).
• Lower – Early successional species: Maples, Poplar
(fast-growing, short-lived).
Existing Condition
• Undercut by stream, high proportion of exposed
roots, short life expectancy
• Dead, dying, diseased, or damaged trees that pose a human safety hazard
• Impacting or pending impact to infrastructure (utilities, roads, trails, etc.)
Proposed Condition
• Long-living, healthy, native species that help to stabilize the banks and floodplain
• Increased bio-diversity
30. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Stream Restoration Design Process
30
Short term impact for long term benefit
• Cleared trees “recycled” as in-stream habitat, grade control, wood-chip
trails, habitat “brush” piles, firewood
• Restoration raises the water table, (raises stream bed) which increases
stream access to floodplain and nutrient delivery to roots.
• Healthier ecosystem will develop with the density and species variety
of replacement plantings
– Mosquito population control via predator habitat
– Dense streambank planting will provide shade, reduce water
temperatures, increase oxygenation, increase fish survivability
– Dragonfly larva molting access via heavily planted streambank with
shallower slope
• Canopy loss will close as remaining trees adjust and react to increased
sunlight, growing to fill in openings
Fewer trees cut = lower restoration cost
• Tree-climbing removal method vs. traditional forestry timbering
(minimize impacts to neighboring trees) is expensive.
Lower water table
Higher water table
Incised stream
Restored (raised) stream
37. Pre-Construction Construction
Post Construction After plant establishmentPost-Construction
Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Examples – Big Rocky Run Tributary
37
38. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Examples – Rabbit Branch
38
Pre-Construction Construction
Post-Construction 8 Months After Construction
39. Crook Branch Stream Restoration
DPWES Stormwater Planning Division
Status and General Schedule
• Data Collection (Completed)
• Stream Restoration Design Process (In Progress)
– Pre-Concept Plan Development (Completed)
– Concept (35%) Design Plan Development (Currently Developing)
– Field Walk - Spring 2017
– Preliminary (65%) Design Plan Development
– Final Design Plan Development – Fall 2017
– Construction Documents
• Construction (± 12 months)
– Bidding and Contract Award
– Pardon Our Dust Community Meeting
– Construction date dependent on future funding
39
40. Additional Information
For additional information, please contact
www.fairfaxcounty.gov/dpwes
Crook Branch Stream Restoration
DPWES Stormwater Planning Division 40
Dipmani Kumar, Project Manager
Matt Meyers, Branch Chief
Watershed Projects implementation Branch - North
703-324-5500
Dipmani.Kumar@fairfaxcounty.gov
Matthew.Meyers@fairfaxcounty.gov