20061483 Ver 1_Baseline Monitoring Report_20120823

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UT Pembroke Creek Wetland
and Stream Restoration Site
Repair Baseline Report
Project # 283
Chowan County
Submitted to:
Elusystem
a ement
PROGRAM
NCDENR -EEP, 1652 Mail Service Center, Raleigh, NC 27699 -1652
Submitted: March 2012
o wc�f-�Ddp=
AUG 2 3 2012
DEf:r, , cR QUALITY
WETLANDS ANC 6TOMAWATM$RANCH
RECEIVED
MAR 1 6 2012
NC ECOSYSTEM
ENHANCEMENT PROGRAM

— - 1
KCI
ASSOCIATES OF NC
Landmark Center H, Suite 220
4601 Six Forks Road
Raleigh, NC 27609
Phone: [phone]
Fax: [phone]
Project Manager: Adam Spiller
Email: [e-mail]
Protect No: 12090%5B_20
UT Pembroke Creek KC /Associates ojNorth Carolina
EEP Project # 283 Repair Baseline Report

TABLE OF CONTENTS
1.0 Introduction ...................................................».... ...............................
1 1 Site Description
12 Adaptive Management Needs
13 Additional Project Information
2.0 Repair Approach . ............................... .........»...... ............................... .
21 Description
21 1 Piped Road Crossings
2 12 Additional Road Crossing
2 13 Alteration to Grade Transition Structure
2 14 Additional Planting
22 Repair Goals and Objectives
23 Restoration Components
Tables and Figures
Table 1
Project Restoration Components
Table 2
Post - Repair Project Component Summations
Table 3
Project Contacts Table
Table 4
Plant Quantity and Species
Figure 1
Post Repair Site Asset Map
Appendix A — Project Photo Log
Project Photos
Appendix B — Record Drawings
Record Drawings
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1
1
2
2
2
2
2
2
3
3
3
5
5
6
6
7
9
12
UT Pembroke Creek KC/ Associates ojNorth Carolina
EEP Project # 283 Repair Baseline Report

1.0 Introduction
1.1 Site Description
The North Carolina Ecosystem Enhancement Program (EEP) restored, enhanced, and
preserved wetlands and restored a headwater wetland valley, wluch is analogous to a
stream in this setting at the UT Pembroke Creek Site in Chowan County, North Carolina
The 59 -acre site is located within the USGS 8 -digit HUC 03010205 of the Pasquotank
River Basin Prior to restoration, the site was planted in row crops and had been ditched
since the 1920's The restoration project, completed in the fall of 2007, restored and
enhanced the wetland by filling the ditches and focusing the hydrology into headwater
wetland valleys The project also preserved a large forested wetland and decommissioned
an animal waste lagoon adjacent to the project The project goals and objectives are listed
below
Goal: Modify the channelized water features, based on reference condition, with the
intent to restore the site's primary wetland functions such as nutrient cycling, flood
storage, and providing wildlife habitat
Objectives:
• Improve water quality in the basin by filtering nutrients through on -site wetlands
• Buffer flood flows downstream by increasing infiltration and storage areas
• Design a waterway through the wetland complex with appropriate cross - section,
slope, and pattern as to provide nutrient filtering, flood storage, and wildlife
habitat while meeting the appropriate success criteria for the wetland
• Improve terrestrial and aquatic habitat diversity
• Establish a contiguous buffer along the project that can serve as a migration
corridor for local fauna
• Use natural materials and native vegetation into the proposed restoration design to
the greatest extent possible
• Establish a native forested riparian plant community within the non - wetland
buffer area
• Establish a headwater wetland community
• Provide an aesthetically pleasing landscape
1.2 Adaptive Management Needs
The two roads that divided the site into three separate pieces were site constraints in the
original design of the project One road (Road A) runs east -west and separates the two
large restoration parts of the project, and the other road (Road B) runs north -south and
separates most of the preservation part of the site from the restoration part The
restoration installed road crossings on each road so that water can flow over the roads to
provide hydrologic connection throughout the site Even with the installation of the
crossings, these two roads were still impeding the flow of water through the wetland
There is also a structure at the bottom of the site that transitions the flow to a single
thread channel The elevation of this structure was impeding the natural flow of water
through the site
These issues mentioned above caused long durations of standing water that negatively
affected the planted stem survivability In other parts of the site Juncus efjusus has
become so thick and tall that it was out - competing the planted vegetation
UT Pembroke Creek KCl Associates of North Carolma
EEP Project # 283 l Repair Baseline Report

1.3 Additional Project Information
Summary mformation/data related to the occurrence of items such as beaver or
encroachment and statistics related to performance of vanous project and monitoring
elements can be found in project monitoring reports Narrative background and
supporting information can be found in the mitigation and restoration plan documents
available on the EEP's website All raw data supporting the tables and figures in the
appendices are available from the EEP upon request
2.0 Repair Approach
2.1 Description
In early June 2010, KCI conducted a site survey at the UT Pembroke Site This survey
was used to verify the existing elevations of the roads, the road crossings, the grade
transition structure, and the elevations of the surrounding wetland areas The information
from this survey was used to develop the Conceptual Plan (October 2010) for repairs at
the UT Pembroke Site to correct the failures described in Section 12 The repairs were
implemented in September 2011 and supplemental planting occurred in December 2011
2.1.1 Piped Road Crossings
Three drainage pipes were installed under Road A The pipes are 8" schedule 40
PVC These pipes increase the volume of water that can flow from the northern
to the southern half of the site without flowing over the top of the road The exact
location of the pipes and the elevation of the pipe inverts were determined in the
field dunng construction The invert elevations are shown in the repair record
drawings These elevations were chosen to hydrologically connect the wetlands
on either side of the road The most easterly pipe was installed with a different
type of inlet inlet, because it needed to be buned deep enough below the road
grade A picture of this inlet can be found in Appendix A
2.1.2 Additional Road Crossing
To reduce the quantity of standing water in the depressional area adjacent to
Road B an additional road crossing was installed As designed, this crossing does
not eliminate the standing water, because this depression is naturally the lowest
part of the site and parts of it are still lower than the new crossing, but it has
reduced the area of standing water The lowest elevation of the road adjacent to
the depression prior to the repair was 15 5' The elevation of the new road
crossing is approximately 14 6'
2.13 Alteration to Grade Transition Structure
The grade transition structure at the downstream end of the site contnbuted to the
ponding and long hydropenod at the site The top of the structure was onginally
set at 15 0' To reduce the amount of standing water in the preservation wetland,
the top two logs at the top of the structure were removed and the stone base of
the step was graded down by approximately one foot The second log structure
was rebuilt to repair piping and lowered to approximately 13 9' in elevation
These measures still maintain a small ponded area at the southern part of the
preservation wetland, however, this structure no longer influences the flow and
hydropenod on the western side of Road B
UT Pembroke Creek KCI Associates of North Carolina
EEP Project # 283 2 Repair Baseline Report

2.1.4 Additional Planting
The site was also planted with additional native trees These plantings included
I" caliper trees along some of the site boundaries and in the large areas of
standing water, bare root trees in areas of low density and low diversity, and '' /z"
caliper fabricated root ball trees in other parts of the site with low survivability
due to excessively long hydropenods The plant list and quantities are included in
Table 4
2.2 Repair Goals and Objectives
The project accomplished the goals of this repair by implementing the objectives as
described below
Goals:
• Modify the hydrology at the UT Pembroke Creek Site to decrease the amount and
duration of standing water in the restored and preserved wetlands while
maintaining the site's wetland hydrology
• Increase the site's vegetative density, with particular attention to the areas with
standing water
Objectives.
• Add piped road crossings along Road A between the northern and southern parts
of the site to facilitate surface flow
• Build an additional road crossing on Road B, between the southern part of the site
and the preservation wetland, providing a flow path for the excess standing water
in the restored wetland
• Adjust the grade transition structure at the outlet of the preservation wetland to
decrease the amount of standing water in the preservation wetland
• Plant native trees and shrubs in parts of the site that have experienced excessive
mortality of the previously planted vegetation
2.3 Restoration Components
The repairs have altered the path of the headwater wetland valley By installing the new
road crossing, the headwater wetland valley crosses Road B and flows south along the
eastern side of the road to the site's downstream outlet This change converts some area
from wetland preservation to headwater wetland valley (stream) restoration This
modified flowpath coincides with the natural valley through the site Since the road is not
in the conservation easement, the 100' corridor for the new location of the wetland valley
extends to the western side of Road B This change decreases the wetland preservation
and stream restoration credit, but increases the wetland restoration credit at the site See
Tables 1 and 2 for the revised credit calculation
UT Pembroke Creek KCI Associates ojNorth Carolina
EEP Project # 283 3 Repair Baseline Report

TABLES AND FIGURES
UT Pembroke Creek KCl Associates of North Carolina
EEP Project # 283 4 Repair Baseline Report

Table 1 Project Restoration Components
Project Number and Name 283 - UT Pembroke
Stream (If)
Riparian Wetland (Ac)
yGrr
mcc
ayGrr
Buffer (Ac)
BMP
Rrverme
Non- Rrvenne
Restoration
Le `
a
o
Original
Post Repair
Project Component
Level
p` 4 "A
rs°, " ,;
Stationing
Stationing
Comment
nhancement 1
00+00 to 34 +73
00+00 to 28 +39
This feature is 100 feet wide
Headwater Wetland Valley
Restoration
4,488 If
4,355 If"
and
and
for its entire length,
40+00 to 58 +72
30+00 to 46+07
encompassing 9 94 acres
Riparian Wetlands
Restoration
13 81 ac
14 41 ac
N/A
N/A
Kreservation
on -Ri anan Wetlands
Restoration
4 46 ac
4 46 ac
N/A
N/A
on-Rt anan Wetlands
Enhancement
5 26 ac
5 26 ac
N/A
N/A
Riparian Wooded Wetlands
Preservation
8 95 ac
8 35 ac
N/A
N/A
on- Ripanan Wooded Wetlands
Preservation
16 97 ac
16 97 ac
N/A
N/A
' This length reflects the exclusion of three 30' road crossings from the creditable footage
Table 2 Post - Repair Component Summations
Project Number and Name 283 - UT Pembroke
Restoration Level
Stream (If)
Riparian Wetland (Ac)
Non - Riparian (Ac)
Upland (Ac)
Buffer (Ac)
BMP
Rrverme
Non- Rrvenne
estoration
4,355
1441
446
nhancement
5 26
nhancement 1
nhancement 11
Creation
Kreservation
835
1697
Preservation
UT Pembroke Creek KC/ Associates ojNorth Carolina
EEP Project # 283 5 Repair Baseline Report

Table 3 Project Contacts Table
Project Number and Name 283 - UT Pembroke
Site Maintenance
Design Firm
KCI Associates of NC
I /2" Caliper
Fabricated
Root Ball
Landmark Center II, Suite 220
Blow Oak
4601 Six Forks Rd
1,000
Raleigh, NC 27609
10
Contact Mr Adam Spiller
Quercus mtchauxtt
Phone [phone]
0
Fax [phone]
Construction Contractor
Land Mechanics Designs
1,600
126 Circle G Lane
10
Willow Springs, NC 27592
Quercus ntgra
Contact Mr Lloyd Glover
875
Phone [phone]
Planting Contractor
Bruton Natural Systems
1,500
PO Box 1197
10
Fremont, North Carolina 27830
Ltrtodendron tultptfera
Contact Mr Charlie Bruton
0
Phone [phone]
Table 4 Plant Quantity and Species
Project Number and Name 283 - UT Pembroke
Common Name
Scientific Name
Quantity
Bare Root
I /2" Caliper
Fabricated
Root Ball
1" Caliper
Ball and
Burl
Blow Oak
Quercus phellos
1,000
0
10
Swamp Chestnut Oak
Quercus mtchauxtt
1,000
0
0
Cherrybark Oak
Quercus pagoda
1,600
0
10
Water Oak
Quercus ntgra
1,600
875
0
Green Ash
Fraxtmis pennsylvan►ca
1,500
875
10
Yellow Poplar
Ltrtodendron tultptfera
0
0
10
ald Cypress
Taxodtum disttchum
0
875
15
ISwamp Tupelo
Nyssa btflora
0
875
0
UT Pembroke Creek KC/ Associates of North Carolina
EEP Project # 283 6 Repair Baseline Report

• ,� / /I /I/ �I
♦ ♦ ♦i IIIi
ito
r'
Am �iI
of iur ient
Figure 1. Post - Repair Site Asset Map
UT Pembroke Creek, Chowan County, EEP Prgiect # 283
Wetland Valley Centerline (4,355 If) Q Non - Riparian Wooded Wetland Preservation (16.97 ac)
® Headwater Wetland Valley (9.94 ac) ® Riparian Wetland Restoration (14.41 ac)
® Non - Riparian Wetland Enhancement (5.26 ac) Q Riparian Wooded Wetland Preservation (8.35 ac)
® Non - Riparian Wetland Restoration (4.46 ac) xN, ua n No 4(a)
Fccl
KCI
,\SSOCurE5 OF NC

APPENDIX A
PROJECT PHOTO LOG
UT Pembroke Creek KCl Associates of North Carolina
EEP Project 9 283 8 Repair Baseline Report

09/12/2011 — View of repair to Grade Transition
Structure.
09/12/2011 — View of repair to Grade Transition
Structure.
09/13/2011 — View of newly constructed road crossing
immediately after installation, with previously ponded
water draining across the road.
09/12/2011 — View of repair to Grade Transition
Structure.
09/12/2011 — View of repair to Grade Transition
Structure.
09/14/2011 —View of newly constructed road
crossing after water has drawn down.
UT Pembroke Creek KCI Associates ojNorth Carolina
EEP Project # 283 9 Repair Baseline Report

09/14/2011 — View of one of the piped road crossings
immediately after installation.
12/08/2011 — View of 1" caliper ball and burlap tree
prior to planting.
12/08/2011 — View of 1/2" caliper fabricated root ball
tree prior to planting.
09/14/2011 — View of drain inlet modification to the
most eastern piped crossing.
01/03/2012 — View of planted I" caliper ball and
burlap tree.
12/08/2011 —View of 1/2" caliper fabricated root
ball trees prior to planting.
UT Pembroke Creek KCI Associates of North Carolina
EEP Project # 283 10 Repair Baseline Report

APPENDIX B
RECORD DRAWINGS
UT Pembroke Creek KCI Associates ojNorth Carolina
EEP Project # 283 !! Repair Baseline Report