Bull Neck Stream Restoration Pardon Our Dust Meeting May 2, 2018
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Fairfax County plans to begin construction on a stream restoration project in Bull Neck Run in August 2018. Approximately 1,900 linear feet of Bull Neck Run will be restored. The stream runs through Fairfax County Park Authority property and Spring Hill Farm HOA property.
Bull Neck Stream Restoration Pardon Our Dust Meeting May 2, 2018
- 1. A Fairfax County, VA, publication Department of Public Works and Environmental Services Working for You! Bull Neck Run Stream Restoration Project Pardon Our Dust Meeting May 2, 2018
- 2. Stormwater Planning Division Community Meeting: Pardon our Dust • Project Background – Background – Major Project Elements • Construction Timeline Summary • Project Schedule/Phasing, Site Access, Construction Equipment • Example photos • Safety During Construction • Q&A 2
- 3. Stormwater Planning Division Project Location 3
- 4. Stormwater Planning Division Project Limits 4 Restoration Reach: • 1,910 Linear Feet • Extends to pedestrian bridge • Runs through FCPA and Spring Hill Farm HOA property
- 5. Stormwater Planning Division Project timeline 5 • Fall, 2013: Project initiated • Winter, 2013: Surveys and assessment completed • April, 2014: Pre-concepts submitted • June 18, 2014: First public meeting • October, 2014: Final concept submitted • April, 2015: Additional scope for final design developed and approved • June 15, 2015: Second public meeting • March, 2016: Final design completed • November, 2017: Project authorized for construction • March, 2018: Bid Opening – awarded to Resources Environmental Services, LLC • July, 2018: Anticipated construction start date • July, 2019: Anticipated substantial completion date
- 6. 6 Scope of Work Stormwater Planning Division
- 7. Stormwater Planning Division Construction Entrance and Access 7 • Existing Gated Areas • Cross Existing Spillway • Upslope of Soccer Field • Existing Cleared Area
- 8. Stormwater Planning Division Construction Access 8 • Upslope of Soccer Field • Existing Cleared Area • Staging and Stockpile
- 9. Stormwater Planning Division Construction Access 9 • Timber matting along the length of the access route • Orange fencing around the site
- 10. Stormwater Planning Division Reach 1 Upper (Existing) 10
- 11. Stormwater Planning Division Reach 1 Upper (Proposed) 11 • Tie into stable reach • Regenerative Design • Restore Historic Fill CONSTRUCTION ACCESS
- 12. Stormwater Planning Division Step Pool and Cascade (Proposed) 12
- 13. Stormwater Planning Division Tributary 3 and 4 (Existing) 13
- 14. Stormwater Planning Division Tributary 3 and 4 (Proposed) 14 • Removal of Fill • Regenerative Design (Trib 3) – Grade Control • Fill on Grade (Trib 4) • Connect to Main Stem
- 15. Stormwater Planning Division Regenerative Stormwater Conveyance 15
- 16. Stormwater Planning Division Reach 2 (Existing) 16
- 17. Stormwater Planning Division Reach 2 (Proposed) 17 • Downstream of Tributary 3&4 Tie In • Extend to Tributary 1 Confluence • Bridge and Trail to remain open outside of active construction hours BRIDGE AND TRAIL
- 18. Stormwater Planning Division Tributary 1 (Proposed) 18 • Step Pool System with Grade Control • Trail to be temporarily closed when work is done for Trib 1, otherwise it will remain open BRIDGE AND TRAIL
- 19. Stormwater Planning Division Reach 3 (Existing) 19 SPRINGHOUSE
- 20. Stormwater Planning Division Reach 3 (Existing) 20
- 21. Stormwater Planning Division Reach 3 (Proposed) 21 • Access Along Left Bank to Crossing Point • One Pattern Realignment Section • Bankfull Channel Shaping with Instream Structures
- 22. Stormwater Planning Division Reach 4 (Existing) 22
- 23. Stormwater Planning Division Reach 4 (Proposed) 23 • Toe Protection and Bench at Existing Rip Rap • Boulder Toe Fill at Downstream Steep Bank • Temporary trail to be installed during active construction NEW TRAIL ALIGNMENT
- 24. Stormwater Planning Division Boulder Toe (Proposed) 24
- 25. DPWES Stormwater Planning Division Stream Structures and Bed Reinforcement 25 Reinforced Bed Step Pools Cross Vanes
- 26. Stormwater Planning Division Revegetation - Trees 26
- 27. Stormwater Planning Division Revegetation – Native Seed Mix 27
- 28. Stormwater Planning Division Proposed Schedule • Notice to proceed expected to be issued to Resources Environmental Services, LLC. in June, 2018 • Project duration: 365 calendar days (<12 months) • Example construction schedule above • Contractor will submit final schedule for approval • Permit required stream restoration monitoring by County: 3 Years • Vegetation Monitoring and Maintenance by County: 3 Years 28
- 29. Stormwater Planning Division Construction Access Photos 29 Access road with timber matting and tree protection area Stockpile area
- 30. Stormwater Planning Division Construction Equipment Examples 30 Track truck Excavator
- 31. Stormwater Planning Division Construction Times • Our construction times comply with the Code of Fairfax Noise restrictions (Section 108-4) • No construction activities: – Between 9:00 pm and 7:00 am – Before 9:00 am on Sundays – Before 9:00 am on Federal holidays 31
- 32. Stormwater Planning Division Dead Run – Stream Restoration 32
- 33. Stormwater Planning Division Dead Run –Stream Restoration 33 August 2014 January 2010
- 34. Pre-Construction Construction Post Construction After plant establishmentPost-Construction Stormwater Planning Division Examples – Big Rocky Run Tributary 34
- 35. Stormwater Planning Division Examples – Rabbit Branch 35 Pre-Construction Construction Post-Construction 8 Months After Construction
- 36. 36 Safety During Construction • Contractor is required to comply with Fairfax County’s Construction Safety Resolution. • For all residents, keeping safe means following two simple rules: 1. Please stay outside the construction limits at all times! 2. Observe construction activities from a safe distance. Stormwater Planning Division
- 37. Additional Information For additional information, please contact www.fairfaxcounty.gov/dpwes Stormwater Planning Division 37 Vivian Bui, Project Manager Matt Meyers, Branch Chief Watershed Projects implementation Branch - North 703-324-5500 Vivian.Bui@fairfaxcounty.gov Matthew.Meyers@fairfaxcounty.gov 703-324-5500, TTY 711 www.fairfaxcounty.gov/publicworks/stormwater