20120774 Ver 1_Other Agency Correspondence_20140725

Strickland, Bev
From: Kulz, Eric
Sent: Friday, July 25, 2014 1:37 PM
To: Strickland, Bev
Subject: FW: Jacobs Ladder and Jacobs Landing Credit Modificaiton Request Letters
(UNCLASSIFIED)
Attachments: Ladder - Credit Request.pdf; Landing - Credit Request.pdf
Bev:
For 12 -0773 (Jacobs Landing) and 12 -0774 (Jacobs Landing)
- - - -- Original Message---- -
From: Tugwell, Todd SAW [ mailto :Todd.Tugwell @usace.army.mil]
Sent: Friday, July 25, 2014 12:54 PM
To: Kulz, Eric
Subject: FW: Jacobs Ladder and Jacobs Landing Credit Modificaiton Request Letters (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
- - - -- Original Message---- -
From: Tugwell, Todd SAW
Sent: Thursday, May 22, 2014 2:41 PM
To: Fritz Rohde (Fritz. Rohde @noaa.gov); Amy Chapman (amy.chapman @ncdenr.gov); Baker, Virginia; Beter, Dale E
SAW; Biddlecome, William J SAW; bowers.todd @epa.gov; Crumbley, Tyler SAW; Cyndi Karoly
(cyndi.karoly @ncdenr.gov); David Cox (david.cox @ncwildlife.org); Emily Jernigan @fws.gov; eric.kulz @ncdenr.gov;
Gibby, Jean B SAW; Greer, Emily C SAW; Jones, Scott SAW; Karen Higgins (Karen. Higgins @ncdenr.gov);
Kathryn Matthews @fws.gov; Marella Buncick ( Marella [e-mail]); McLendon, Scott C SAW; 'Steve Sollod';
Travis Wilson (travis.wilson @ncwildlife.org); Wheeler, Tracey L SAW; Wicker, Henry M JR SAW
Cc: 'Baumgartner, Tim'; 'Tim Morris'
Subject: Jacobs Ladder and Jacobs Landing Credit Modificaiton Request Letters (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
All,
Pursuant to our discussions during the last IRT meeting on May 13th, please see the attached letters from Tim Morris
with KCI. The letters are requesting a modification to the amount of credit proposed for two of the tributaries that were
constructed as part of the project. The presentation that was provided to the IRT during the meeting is also available on
the IRT portion of the RI BITS website.
As we discussed during the meeting, the attached letters have been prepared to provide justification for the requested
credit modification. Please review the attached letters and provide any comments to me within 30 days of this emails
(June 20th).
Thanks,

Todd TugwelI
Special Projects Manager
Wilmington District, US Army Corps of Engineers
11405 Falls of the Neuse Road
Wake Forest, NC 27587
Office: 919 - 846 -2564
Mobile: 919 - 710 -0240
Classification: UNCLASSIFIED
Caveats: NONE
Classification: UNCLASSIFIED
Caveats: NONE

KC1
NOW11 °1 CAROLINA, P
May 22, 2014
ENGINEERS • SCIENTISTS • SURVEYORS • CONSTRUCTION MANAGERS
Landmark Center 11, Suite 220 4601 Six Forks Road Raleigh, NC 27609 (919) 783 -9214 (919) 783 -9266 Fax
Mr. Todd Tugwell
Regulatory Division
Wilmington District
U.S. Army Corps of Engineers
11405 Falls of Neuse Road
Wake Forest, NC 27587
And:
Mr. Tim Baumgartner
Deputy Director
NC DENR
Ecosystem Enhancement Program
1652 Mail Service Center
Raleigh, NC 27699
Subject: Jacob's Ladder (95023) Stream Restoration Project
Request for Mitigation Plan Amendment
Dear Mr. Tugwell and Mr. McDonald,
This letter is in response to the discussions at an Interagency Review Team (IRT) meeting attended by
KCI on May 13, 2014. During this meeting KCI presented a request to modify the allocation of stream
mitigation credits on the Jacob's Ladder stream restoration project. Citing procedural reasons, the IRT
requested that KCI submit a formal request to reallocate credits. This letter will serve as that request.
Request
KCI requests the following changes to the credit table provided in the Jacob's Ladder Stream Restoration
Site - Final Mitigation Plan dated September 2012 (requested changes shown in red).
KCI ASSOCIATES OF NORTH CAROLINA, P.A.
www.kci.com
Employee -Owned Since 1988

Reach
Miti g ation Type
Priority
Approach
Existing Linear
Footage
Designed
Linear
Footage
Mitigation
units
T1 -1
Restoration
111
587
739
739
T1 -2
Restoration
111
1,592
1,622*
1,622
T2 -1
Restoration
111
837
750*
750
T2 -2
Restoration
111
1,246
1,334*
1,334
T1A -1
Enhancement
-
306
306
204
T1A -2
Enhancement II
-
140
140
56
T1A -3
Restoration
111
470
498
498
Total Stream Enhancement
306
306
204
Total Stream Enhancement II
140
140
56
Total Stream Restoration
4,732
4,943
4,943
Total Mitigation Units
5,203
7usti fi cnti on
The 837 linear feet of stream channel associated with reach T2 was identified during the Proposal Stage
(including an IRT site walk) as Enhancement Level 1 at a 1.5:1 ratio. As a matter of practice, KCI
attempts to be consistent with the credit -types requested in the Proposal during the assessment and the
design stages of the project. Initial thoughts during the proposal stage were to install periodic structures
to stabilize the grade and direct flow, selectively grade banks and retrofit a cross section where practical.
During the assessment and design stage for Reach T2, a more aggressive restoration approach was
utilized. This was primary due to the need to rework the grade on both banks, to create a floodplain
bench and to properly tie -in the on -line restoration work with the existing bedrock control and the offline
restoration section downstream. These reasons and others resulted in ultimate decision to completely
change the stream type from a G -type channel to a C -type channel. This approach was a restoration
approach, although it never was properly identified as such in the Mitigation Plan. The approach included
the following restoration initiatives:
Channel type changed from a G channel to a C channel by installing a typical riffle cross section
with a 10.0' bankfull bench and a 1.8' bank height.
Adjusted thalweg and centerline (planform) slightly throughout most of the reach and
significantly in several areas to allow for the incorporation of the bankfull bench. Bench location
and width varied from cross section depending on condition of valley and the ability to
accommodate the full bankfull width given the valley condition.
Installed significant number of structures (1 step pools, 2 soil lifts, 17 riffle enhancements) to
stabilize the profile and create in- stream habitat.
Added bedform diversity and stabilized the planform.
All of the items mentioned above support the reallocation of credit type to restoration (or enhancement at
a higher ratio). KCI requests that the IRT support the correction of the 1.5:1 Enhancement I ratio
proposed for Reach 2 in the Final Mitigation Plan to 1:1 ratio. KCI can provide amended copies of the
KCI ASSOCIATES OF NORTH CAROLINA, P.A. www.kci.com
Employee -Owned Since 1988

Mitigation Plan, if desired. Please understand that the exact number of credits may vary slightly when the
as -built plans are analyzed. These numbers are based on the modification of the mitigation plan, not the
actual, constructed condition.
We hope you find this information appropriate in order to move forward with your decision. If you have
further questions or comments, feel free to contact me at 919 - 278 -2511 or tim.morris(a�kci.com .
Sincerely,
Timothy J. Morris
Senior Environmental Scientist
cc: Joe Pfeiffer, KCI (email)
Adam Spiller (email)
Mike McDonald, EEP (email)
KCI ASSOCIATES OF NORTH CAROLINA, P.A.
www.kci.com
Employee -Owned Since 1988