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).

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Long Branch Central
Watershed Management Area
Project Overview
Braddock District
April 11, 2022

2. Long Branch Central Watershed Management Area
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allows
• Presentation is being recorded and will be
available at:
– www.fairfaxcounty.gov/publicworks/stormwater
/plans-projects/long-branch-central-watershed-
management-area-project
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3. Long Branch Central Watershed Management Area
Agenda and Presenters
 Welcome and Meeting Orientation
 Meghan Fellows (DPWES)
 Introductory Comments
 Supervisor Walkinshaw
 Project Overview, Team & Schedule
 Charles Smith (DPWES)
 Biohabitats Presentation of Field Work and Project
Implementation Plan Development
 Jennifer Zielinski Missett
 Joe Berg
 Katie Talley
 Meghan Gloyd
 Greg Zuknick
 Questions and Answers
Photo by Thomas Kinder July 2019 – with permission of Save Lake Accotink
Degraded Outfall and Eroding Channel:
Willow Woods Park just downstream of Braeburn Dr
DPWES Stormwater Planning Division 3

4. Long Branch Central Watershed Management Area
Project Location
Long Branch Central Watershed
3.71 Square Miles - 12 Miles of Streams
Braddock Road
Little River Turnpike (236)
Capital Beltway (495)
Burke Station Road
DPWES Stormwater Planning Division 4

5. Long Branch Central Watershed Management Area
Who’s Involved
• County Agencies
– DPWES
– FCPA
– NVSWCD
– FCPS
• Design Consultant: Biohabitats, Inc.
• Braddock District Supervisor’s Office
• Identified Stakeholder Groups:
– Friends of Long Branch
– Friends of Accotink Creek
– Earth Sangha
– Stone Haven Civic Association
– Canterbury Woods Civic Association
– Red Fox Civic Association
– Rutherford Civic Association
• Residents
Relative Stability & Bank Erosion:
Long Branch Main Stem Downstream of Guinea Road
DPWES Stormwater Planning Division 5

6. Long Branch Central Watershed Management Area
Project Team
Long Branch Central WMA
Key Participants
Northern Virginia Soil &
Water Conservation
District
Willie Woode
Acting Executive Director
Judy Fraser
Conservation Assistance
Program Coordinator
Fairfax County Park
Authority
Sam Hudson
Park Planning Branch
Manager – Planning and
Development
Marcos Saurez
Manager, Area 4
Management – Park
Operations
John Burke
Manager, Natural Resources
Branch – Resource
Management
Tami Sheiffer
Watch the Green Grow
Coordinator– Resource
Management
Department of Public
Works & Environmental
Services
Charles Smith
Project Manager – Stormwater
Meghan Fellows
Project Manager - Stormwater
Jonathan Witt, Chris Ruck,
Dionna Bucci
Aquatic Ecologists –
Stormwater
Rachael Holland
Engineer IV –
Stormwater Infrastructure
Tom Richardson
Sanitary Sewer Coordination –
Wastewater
Biohabitats
Team
Jennifer Zielinski Missett
Project Manager
Joe Berg
Principal in Charge
Rebecca Winer-Skonovd
Watershed Planning Lead
Greg Zuknick
Assessment Lead
Doug Streaker
Restoration Design Lead
Sarah Roberts
Monitoring Lead
Braddock District
Supervisor
Marcia Pape
Senior Legislative Aide
Brian Garcia
Communications Director
Key Stakeholder
Groups
Friends of Long Branch
Friends of Accotink Creek
Homeowner & Civic
Associations
DPWES Stormwater Planning Division 6

7. Long Branch Central Watershed Management Area
Development of Fairfax County Stream Restoration and Water Quality Work Plan
Fairfax County, Virginia
• Land area of approximately 400 square miles
• Population of approximately 1.1 million residents
• Includes Fairfax City, the Towns of Herndon and Vienna, George Mason
University, Fort Belvoir
• Land Use
– Residential 88%
– Commercial 5%
– Industrial 2%
– Open Space 4%
– Other 1%
• MS4 Phase I community
• Stormwater Funding: Stormwater Service
District
• 30 watersheds with over 750 miles of perennial streams
DPWES Stormwater Planning Division 7

8. Long Branch Central Watershed Management Area
Development of Fairfax County Stream Restoration and Water Quality Work Plan
8
Major Stormwater Project Drivers
1. Chesapeake Bay TMDL*
Pollutant Load Reduction Requirements
a) Nitrogen: 59,400 pounds/year
b) Phosphorous: 6,500 pounds/year
c) Sediment: 2,700 tons/year
2. Local TMDL’s
a) Sediment (4)
b) Bacteria (7)
c) PCB’s (tidal portions of
Potomac River)
d) Chloride (1)
3. 105 Impaired Waterbodies
*TMDL – Total Maximum Daily Load – Assigned by the VA Department of Environmental Quality
2020 Impaired Waters
Impaired
Segments:
77 Streams
3 Reservoir
29 Estuarine
109 Total
DPWES Stormwater Planning Division 8

9. Long Branch Central Watershed Management Area
Development of Fairfax County Stream Restoration and Water Quality Work Plan
9
Long Branch TMDL
Fairfax County
Sediment Load
Reduction
Requirement =
3,313 tons per year
This is the amount of sediment that Fairfax
County is required to reduce coming out of Long
Branch Central each year under the County’s
Municipal Separate Storm Sewer System (MS4)
permit.
Eroded channel and exposed sewer line at Trapp Rd outfall.
DPWES Stormwater Planning Division 9

10. Long Branch Central Watershed Management Area
Project Overview
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).
Failed Stream Bank: Long Branch near
Olde Creek Elementary School
Degraded Outfall: Long Branch
at Laurel Street
DPWES Stormwater Planning Division 10

11. Long Branch Central Watershed Management Area
Project Overview
Individual Project Goals:
• Will be based on the conditions where the
project is proposed.
• Focus on restoring highly degraded channels
to stop erosion.
• Seek to avoid impacts to higher quality
resources.
– For example: good quality/stable stream areas or
floodplain forest.
• Improve ecological function where possible.
– For example: fish habitat or vegetation in the
floodplain.
• Minimize tree impacts.
Tabard Place to Woodland Way
Degraded Stable
DPWES Stormwater Planning Division 11

12. Long Branch Central Watershed Management Area
Project Schedule
• Begin Assessment – Fall 2020
• Complete Restoration Work Plan –
September 2022
• Complete First Construction Plans –
Fall 2023
• *Begin Construction – Winter 2023
• Construction Ongoing – Through
2029
• Warranty, Monitoring and
Maintenance – 2025 through 2032
*Note that project implementation is dependent
upon future fund availability.
Massive Bank Erosion: Long Branch Tributary in Old Forge Park
DPWES Stormwater Planning Division 12

13. Long Branch Central Watershed Management Area
Project Scope
Assess:
• ~12 miles of stream
• ~150 outfall
• County maintained SW facilities
Restore:
• 21 proposed projects
• ~6.5 miles of stream and outfall
channels
• ~75 outfalls
• Renovate county SW facilities
(optional)
Undermined Concrete Ditch: Long Branch in Smokewood
Park Downstream of Whiteacre Dr
DPWES Stormwater Planning Division 13

14. Long Branch Central Watershed Management Area
21 Proposed Restoration Projects
21 Proposed Projects
• Grouped by location
• Range from upstream to downstream
• Focused on outfalls and stream
channels
• Include four (4) optional stormwater
pond renovations
Public Comment Period
• April 11 to May 11, 2022
How to comment:
• Access through project webpage
• Can also use public input map & email to
project managers
DPWES Stormwater Planning Division 14

15. Long Branch Central Watershed Management Area
21 Proposed Restoration Projects
Project Name Grouping
Dansk Court to Flintridge Court Headwaters
Somerset – Ceralene Drive to Dansk Court Headwaters
Smokewood Park, South of Laurel Street Headwaters
Smokewood Park, North of Laurel Street Headwaters
Willow Woods Park South of Braeburn Drive Willow Woods
Ilda Pool at Braeburn Drive Willow Woods
Pickett Road to Tara Drive Upper Mainstem
Olde Forge Park Upper Mainstem
Olde Creek Elementary School to Pickett Road Upper Mainstem
Guinea Road to Tabard Place Rutherford Park
Rutherford Park Rutherford Park
Kristin Lane to Rutherford Park Rutherford Park
El James Drive to Rutherford Park Rutherford Park
Canterbury Woods Park – Cockney Court to Wakefield Chapel Road Lower Mainstem
Long Branch Stream Valley Park – Dora Court to Cockney Court Lower Mainstem
Woodland Way to Dora Court Lower Mainstem
Tabard Place to Woodland Way Lower Mainstem
Woodland Meadows Court Stormwater Pond Stormwater Facility Retrofits
Olley Lane Regional Stormwater Pond near Surrey Square Park Stormwater Facility Retrofits
Newcombe Stormwater Pond Stormwater Facility Retrofits
Holly Park Stormwater Pond Stormwater Facility Retrofits
DPWES Stormwater Planning Division 15

16. For Public Comment and Additional Information or to
Provide Input, Please Visit the Project Web Page:
https://www.fairfaxcounty.gov/publicworks/long-branch-
input
Long Branch Central Watershed Management Area
Discussion & Additional Information
Discussion & Questions Old Grade Control Structure: Long Branch Main Stem
Canterbury Woods Downstream of Woodland Way
With Questions, You Can Contact the DPWES Project
Managers:
Meghan Fellows – meghan.fellows@fairfaxcounty.gov
Charles Smith – charles.smith@fairfaxcounty.gov
Or by phone: 703-324-5500, TTY 711
DPWES Stormwater Planning Division 16

17. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
Phase I
Field Assessment and
Restoration Work Plan
Development
Phase II
Conceptual Design and
Value Engineering
Phase III
Final Design, Permitting,
Construction Admin.
Phase IV
Pre and Post Construction Monitoring
PUBLIC & STAKEHOLDER OUTREACH AND INVOLVEMENT
RESTORING LONG BRANCH

18. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
Phase I
Field Assessment and
Restoration Work Plan
Development
Phase II
Conceptual Design and
Value Engineering
Phase III
Final Design, Permitting,
Construction Admin.
Phase IV
Pre and Post Construction Monitoring
PUBLIC & STAKEHOLDER OUTREACH AND INVOLVEMENT
RESTORING LONG BRANCH

19. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Field Assessment Work Plan
― Existing watershed information, data and
mapping
― Public outreach and participation plan
― Restoration goals
― Field assessment plan
― Preliminary approach to monitoring
Drainage Area 3.8 square miles
Current Imperviousness 27%
Stream Length Approx. 12 miles
Land Use Residential (58%)
Non-Residential (28%)
Open Space (3%)
Recreation (11%)

20. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Field Assessment and
Restoration Opportunity Identification
― ~12 miles of stream
― ~150 outfall
― County-maintained stormwater facilities

21. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
Ecological Benefits
Floodplain Vegetation
Habitat
Sediment Load
Feasibility
Property Ownership
Access
Utility Conflicts
Ancillary Benefits
Public Input
Project Synergies
RESTORING LONG BRANCH
Project Evaluation Framework
― Watershed assessment data used to identify
and prioritize potential projects

22. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Preliminary Project Identification
and Prioritization

23. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Monitoring – Before, During and After Construction

24. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Monitoring – Before, During
and After Construction

25. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Preliminary Environmentally Sensitive
Areas Mapping

26. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORING LONG BRANCH
Project Aggregation

27. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION APPROACH
0 SOCIAL >> Recreation,communityinvolvement,support,perception,and education
Modified from Harman, 2012

28. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION APPROACH
Stream Restoration &
Floodplain Reconnection
Using Wood
Bacon Ridge at Elks Camp
Anne Arundel County, MD
February 2018
Pre-Restoration
October 2019
Post-Restoration

29. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
Bacon Ridge Headwater Stream Restoration
Anne Arundel County, MD
RESTORATION APPROACH

30. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION APPROACH
Hawkins Cove
Anne Arundel County, MD

31. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Engineered Log Jams
Constructed Riffles
Floodplain Log Sills
Regenerative Stormwater Conveyance (RSC)
Bank Protection
Floodplain Bench
Large Woody Debris
Wetland Complex

32. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Engineered Log Jams
Bacon Ridge
Anne Arundel County, MD

33. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Constructed Riffles
Breewood
Montgomery County, MD

34. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Floodplain Log Sills
Bacon Ridge at Elks Camp
Anne Arundel County, MD

35. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Regenerative Stormwater
Conveyance (RSC)
Carriage Hills
Anne Arundel County, MD

36. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Bank Protection
River Valley Ranch
Baltimore County, MD

37. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Floodplain Bench
Brentwood Manor
Howard County, MD

38. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Large Woody Debris
Breewood
Montgomery County, MD

39. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RESTORATION TECHNIQUES
Wetland Complex
Bacon Ridge at Elks Camp
Anne Arundel County, MD

40. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS

41. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS
Headwaters
― Dansk Court to Flintridge Court
― Somerset – Ceralene Drive to Dansk Court
― Smokewood Park, South of Laurel Street
― Smokewood Park, North of Laurel Street
― Newcombe Stormwater Pond
― Holly Park Stormwater Pond

42. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS
Upper Mainstem
― Pickett Road to Tara Drive
― Olde Forge Park
― Olde Creek Elementary School
to Pickett Road

43. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS
Rutherford Park
― Guinea Road to Tabard Place
― Rutherford Park
― Kristin Lane to Rutherford Park
― El James Drive to Rutherford Park
― Olley Lane Regional Stormwater Pond near
Surrey Square Park

44. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS
Willow Woods
― Willow Woods Park South of Braeburn Drive
― Ilda Pool at Braeburn Drive

45. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
RECOMMENDED PROJECTS
Lower Mainstem
― Canterbury Woods Park – Cockney Court to
Wakefield Chapel Road
― Long Branch Stream Valley Park – Dora
Court to Cockney Court
― Woodland Way to Dora Court
― Tabard Place to Woodland Way
― Woodland Meadows Court Stormwater
Pond

46. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS
Project Summary
Photos
Restoration Opportunity Map
Site Description
Restoration Goals
― Improve Hydrology
― Improve Hydraulics
― Improve Geomorphology
― Improve Physicochemical Processes
― Improve Biology and Ecology
― Improve Community
Restoration Approach
Feasibility Summary
Restoration Pollutant Reductions Potential

47. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS

48. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS

49. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS

50. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS

51. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS
Smokewood Park, South of Laurel Street
Exposed sewer encasement. Paved outfall ditch discharging into stream.
Incised and widening channel beginning to encroach on the sewer.

52. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PROJECT DESCRIPTIONS
Olde Forge Park
Incised, over widened perennial channel. Concrete channel from swim club parking lot.
Existing stormwater pond.

53. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!
We do not expect everyone to review all 21 projects – focus on projects of greatest interest to you.
“Big picture” questions:
― Are you comfortable with the identified project locations and extents?
― Are stream reaches or outfalls of concern missing?
― Are stream reaches proposed for restoration that you do not think warrant restoration?
― Are the profiles and maps readable and understandable?
Project specific questions:
― Do you agree with the proposed project extent?
― Is the site description accurate?
― Are there valuable resources within the project area not noted in the description?
― Does the preliminary restoration approach cause concern?
― Is there any additional information you can provide about the project extent that should be considered when
evaluating project viability?

54. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!
https://www.fairfaxcounty.gov/publicworks/long-branch-input

55. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!
https://www.fairfaxcounty.gov/publicworks/long-branch-input

56. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

57. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

58. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

59. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

60. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

61. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!

62. LONG BRANCH CENTRAL WATERSHED MANAGEMENT AREA
PLEASE GIVE US YOUR INPUT!
https://www.fairfaxcounty.gov/publicworks/long-branch-input

63. Discussion & Additional Information
Discussion & Questions
Long Branch Central Watershed Management Area
Old Grade Control Structure: Long Branch Main Stem
Canterbury Woods Downstream of Woodland Way
For Public Comment and Additional Information or to
Provide Input, Please Visit the Project Web Page:
https://www.fairfaxcounty.gov/publicworks/long-branch-
input
With Questions, You Can Contact the DPWES Project
Managers:
Meghan Fellows – meghan.fellows@fairfaxcounty.gov
Charles Smith – charles.smith@fairfaxcounty.gov
Or by phone: 703-324-5500, TTY 711
DPWES Stormwater Planning Division 63