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Project Summary/Site Visit Request
TO: Interagency Review Team (IRT) members
FROM: Melonie Allen, DMS Project Manager
RE: Request for Establishment of Stream Enhancement and Preservation Mitigation Ratios
UT West Fork Deep River
CU 03030003; Forsythe & Guilford Counties
IMS # 442
Fund Code 2984
DATE: 10/01/2015
The Ut to West Fork Deep River is a DMS DBB stream mitigation project transferred to EEP in 2005 by
NCDOT. There were a number of delays associated with the project including property acquisition (completion
of original DOT acquisition held up by easement expansion), limited construction access and design concerns.
The project was dropped by DMS in 2011 and resurrected in 2014 (see timeline below).
Brief Project History
Task
Date Completed
Project Transfer from NC DOT
? 2005
EEP PRC Presentation
3/2007
EEP Project Designer Assigned
3/2007
Conceptual Plan
8/2008
Draft Mitigation Plan Submitted
9/2008
Final Mid lion Plan Approved
3/2009
404 /401 submitted
4/15/2009
401 /404 issued
11/24/2009 (expired 11/24/2011
Draft Construction Plans Submitted
Project on hold/dropped 2010
Project resurrected
? 2014
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Ut to the West Fork Site had a number of factors that'resulted in a re- exam nation Nofthe pr64ect'sbility. The V
concerns associated with the site are: (.'rw.-
1. Lateral constraint — the easement limits the belt width of the project
2. Vertical constraint — the existing conditions'resulting from historical land use and ongoing stressors in
the watershed have resulted in a channel that is both incised and entrenched through a combination of
downcutting and aggradation of legacy sediment.
3. The project reach is located in a F'EMA regulated zone.
These constraints have limited the design options for the site. Priority I restoration is not possible due to
easement dth as well as the length of the reach being insufficient to accommodate the profile adjustment that
would be ecessary to restore floodplain functionality. Priority II, the original design for the site, is also not a
suitable solution for this reach in particular given that the site is currently functioning as a sand bed system. The
long -term stability of the site would require that the iedirnent transport analysis be accurate not only for curre
conditions but also for future conditions in a developing watershed. A priority II restoration would entail the 13 � 'ot
typical concerns associated w th'ban stabiliza ion and vegetation establishment associated with work ng in
subsoil as well as an added risk of potential for deposition on benches; which could ultimately re- create a streaml
f • * syVem resembling the current condition. Stream enhancement I accomplished through dimension adjustment
would havE x'similan•riak. In fen of the limited design options subject to uncertain success, planting the easement
..and treating the invasive species would benefit the site. DMS has funded the design and c!2R§ItucdQn
agxic tura s gn st e, entin and alternative waterin strut tires were estgned by Guilford Soil & Water
P *p-;Ijtstrtc�nstalled by DMS contractor in 20 tven the work proposed; planting, invasi�cies
°tYbtatment, cattle exclusion Eencmg and alternative dye watering, DMS is proposing a combination of stream
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enhancement and preservation on Ut West Fork of Deep River. Given the level of channel impairment,
DMS is seeking IRT input on steam enhancement and preservation mitigation ratios.
UT West Fork Deen River– Asset Snmm.r
Type of Asset
Original Assets
Original Credits
Revised Assets*
Estimated
Revised Credits
Stream Restoration
2201
2201
0
0
Stream Enhancement 1
990
660
0
0
Stream Enhancement 2
0
0
2456
?
Stream Preservation 00
2040
408
2775
?
Buffer Restoration & Enhancements . ft.
237837
237837
242,372
t)
- -nurrer assets were revlsea to reflect the 2014 Consohdated Temporary Butter Rules, will be re- evi�psbed and
verified at mitigation plan stage; stream assets to be determined.
J�
Project Location: 1609 Sq ire Davis Rd Kernersville, NC 27284 \ �5t
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Legend
Stream Assets
— OI
P
— Easement
® Burer_:a
Buller Asea _101_200
0 Bu Rer_Assets_30_100
uaa ee
Ut West Fork Deep River (442)
0 / 250 500 1,000 Feet
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