20080780 Ver 1_401 Application_20080508

May 1, 2008
NC Division of Water Quality
Att: Cyndi Karoly
401/Wetlands Unit
2321 Crabtree Blvd., Suite 250
Raleigh, NC 27604
MPS ?
Baker Engineering NY, Inc.
797 Haywood Road
Suite 201
Asheville, North Carolina 28806
828-350-1408
FAX [phone]
0 8 0 7 8 0
Subject: Preconstruction Notification and request for 404 and 401 permits for the construction of
the Town of Black Mountain project called "Flat Creek Stream Enhancement".
Flat Creek, French Broad River Basin - CU#06010108, Buncombe County, NC.
Dear Ms. Karoly:
Enclosed with this letter are five (5) copies of the Pre-Construction Notification, project plan set,
and an electronic version of these materials. Baker has signed an MOU with DWQ for electronic
submission of applications and we have attempted to follow DWQ's guidance with this. In
addition, I have sent one additional copy directly to Kevin Barnett to save your office the time
and expense of forwarding it to him. We have also submitted this information to the U.S. Army
Corps of Engineers and N.C. Wildlife Resources Commission for their review. We are providing
this information for your department's consideration and comments relative to 401 permitting.
It is our understanding that Flat Creek is not designated as trout water by the Division of Water
Quality but may support coldwater fisheries. Accordingly, because we are below the regulatory
threshold, we are not requesting a trout buffer exemption. We believe that the results of this
project will improve habitat at this site for native aquatic and terrestrial species. We are trying to
move this project to construction this summer.
Thank you for your consideration of this request. If you have any questions, please contact me as
soon as possible at 828-350-1408 ext. 2007 or 828-545-3865.
Sincerely,
a F
r
r
Jacob McLean, PE
Project Manager
Office Use Only' Form Version March 05
• O S 0 7 8
USACE Action ID No. DWQ No.
'__Lll / All
(If any particular item is not appueante to tuts project, picasc CLIMI 1V V1 AFp i.- .,. ,... .,
I. Processing
1. Checl all of the approval(s) requested for this project:
® Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: Nationwide 27
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information 5 08
Name: Ms Elizabeth Teague MAY 200
Mailing Address: Town of Black Mountain ua.WATER QU!?? Rp,NCH
106 Montreat Road WL*DS*j)S7
Black Mountain NC 28711
Telephone Number: 828-669-9784 Fax Number: 828-669-4204
E-mail Address: eizabeth teague@townofblackmountain orp,
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Jacob McLean PE
Company Affiliation: Baker Engineering NY Inc
Mailing Address: 797 Haywood Road Suite 201
Asheville NC 28719
Telephone Number: 828-350-1408 x2007 Fax Number: 828-350-1409
E-mail Address: jmclean mbakercoM com
Updated 11/1/2005
Page 5 of 13
III. P>'Piect Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Flat Creek Stream Enhancement and Greenway Project
2. T.I.P. Project Number or State Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN):
4. Location
County: Buncombe Nearest Town: Black Mountain
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): Merge onto I-40 E
from Asheville go approximately 11.0 mi. Take the NC-9 exit, EXIT 64-BLACK
MOUNTAIN/ MONTREAT. Turn LEFT off the ramp onto NC-9/ BROADWAY ST.
Continue to follow BROADWAY ST for about 0.5 mi. Turn RIGHT onto 1 ST ST, 1 ST ST
becomes CHARLOTTE ST go 0.4 mi the downstream terminus of the project is across from
the school at the intersection with VILLAGE WAY on the left.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 82.32075 ON 35.62358 °W
6. Property size (acres): Multiple property easements from landowners and Town of Black
Mountain
7. Name of nearest receiving body of water: Flat Creek
8. River Basin: French Broad
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at htip://h2o.enr.state.nc.us/admin/mUs/.)
Updated 11/1/2005
Page 6 of 13
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is a stream bordered by residential neighborhoods
and by sewer line easement The landuse is urban-residential with some woods and open
areas due to the presence of utility easements.
10. Describe the overall project in detail, including the type of equipment to be used:
Stream enhancement activities will include: stabilizing banks with bank grading, application
of erosion matting, and planting, profile stabilization through the use of stream restoration
grade control structures (vanes or sills), rebuilding eroded banks with bioengmeered soil lifts,
installation of flow deflection vane structures to protect unstable stream banks, protecting
leaning trees by back filling dirt and rock underneath and using boulders for streambank toe
protection This work will require the use of track-hoes with hydraulic thumbs and dump
trucks to haul materials at the site.
11. Explain the purpose of the proposed work:
The purpose of this project is to stabilize eroding?streambanks to allow for a greenway trail
adjacent to the banks on the floodplain remove exotic vegetation in favor of native
vegetation and improve fish and wildlife habitat Eroding stream banks and undercut trees
will be repaired to the extent possible to reduce sediment input into the stream and maintain
shading of the river. The overall purpose is to improve riverine health and to improve public
resources by enhancing water quality, aquatic and terrestrial habitat, and aesthetic values.
IV. Prior Project History
if jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. N/A
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No a related egr enway is to be installed but will not require 404 permitting.
Updated I I / l /2005
Page 7 of 13
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Impacts from this work will be
minimized whenever possible. However, in order to accomplish the restoration effort,
impacts may be realized from temporarily increased turbidity when boulders or woody
materials are installed. Long-term impacts will be an increase in stream bank stability,
increased heterogeneity neity of instream habitat and improved vegetative cover.
2. Individually list wetland impacts (if applicable). Types of impacts include, but are not
limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc.
For dams- separately list impacts due to both structure and flooding.
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
( es/no) Distance to
Nearest
Stream
(linear feet) Area of
Impact
(acres)
N/A

Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property: N/A
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Updated 11/1/2005
Page 8of13
Stream Impact
Number
(indicate on ma)
1
Stream Name

Flat Creek
Type of Impact

Stream enhancement Perennial or
Intermittent?

Perennial Average
Stream Width
Before Impact
20' Impact
Length
(linear feet)
650' Area of
Impact
(acres)
0.3

Total Stream Impact (by length and acreage) 650' 0.3
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water timpacts include, but are not limited to
-11 11 ,.-A.-- A_ nrtn 1?„11rh Park eti-
1111 VAV

Open Water Impact GI V [AUVll
7

Type of Waterbody

Area of

Site Number Name of Waterbody Type of Impact (lake, pond, estuary, sound, bay, Impact

(indicate on ma) (if applicable)
ocean, etc.)
(acres)
N/A

Total Open Water Impact (acres)
6. List the
t .:.. , :+ +„ X11 Wafare ..f the I T R rec» ltin(y from the nroiect:
Stream Impact (acres): 0.30
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.30
Total Stream Impact (linear feet): 650
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Updated 11 / 1 /2005
Page 9 of 13
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. The nature of stream
enhancement and restoration work requires that the work be done as described. To minimize
potential impacts we will be reseeding and matting graded banks within 1-2 days. The staging
area(s) will be located as far from the river as feasible will be kept clean, and soil and other
materials contained with silt fence or other appropriate means.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
htlp://h2o.enr.state.nc.us/ncwetlands/strrngide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
Updated 11/1/2005
Page 10 of 13
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ?
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Updated 11/1/2005
Page 11 of 13
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 213 .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ? No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 3 (2 for Catawba)
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. N/A
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. The existing conditions for the site are
predominantly pervious with riparian cover and there will be no change in the proposed
pervious/impervious area on the site by the stream enhancement plans. Areas which are
impacted by construction access will be returned to a natural state with vegetation and coconut
fiber matting-, any incidental channelization of runoff pathways on the floodplain will be repaired
and revegetated to ensure diffuse flow to the stream.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Updated 1 I/ 1 /2005
Page 12 of 13
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (I 5A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
The watershed is mostly built out and the project is a stream stabilization and enhancement
project which has no past or anticipated correlation to additional development.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
`a¢- 414 s/og
Applicant/Agent's Signature Date
Agent's signature is valid only if an authorization letter from the applicant is provided.)
Updated 11/1/2005
Page 13 of 13
TOWN OF BLACK MOUNTAIN
Planning and Development Department
106 Montreat Road • Black Mountain, North Carolina
Phone [phone] Fax [phone] TDD 800-735-2962
April 14, 2008
Re: Designation of agent for Permitting, Flat Creek Stream Enhancement Project
To Whom It May Concern:
I, Elizabeth Teague, Planning Director for the Town of Black Mountain, attest to the fact that
Black Mountain has entered into a contract with Baker Engineering NY, Inc. (Baker), a professional
corporation. Baker Engineering will be providing engineering services and permitting assistance in
support of a stream enhancement and greenway project along Flat Creek on behalf of the Town. In
this contractual relationship, Baker will act as the Town's agent for the purpose of accomplishing
this work.
Specifically, employees of Baker may take those actions necessary to obtain environmental
permits from the U. S. Army Corps of Engineers, N. C. Division of Water Quality, and N. C.
Division of Land Quality. Please contact me if you have any questions.
Elizabeth Teague, AICP
Planning Director, Town of Black Mountain
Cc: Jake McLean, Baker Engineering.
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(SEE MATTING DETAIL) TOP OF 12 GAUGE MIN.
MIDDLE AND VERTICAL WIRES L
QI Q U a r pC
e BANK 10 GAUGE MIN. TO = O
ROSION CONTROL MATTING AND 80TTOM STRANDS 1 c-
1.5 LIFT OF COMPACTED ENCOMPASSES LIFT 0 O c) O
FLOODPLAIN ON-SITE SOIL (TYP) O z Op U)
C Nro
LIJ 3:
IVE BRANCH C
TTINGS
SEE N
T N
U
(
PLANTING PLAN FOR SPECIES f.. p0
> N
N
) POINT BAR OF CHANNEL t d
Y 0 "
UNDISTURBED EARTH ?/ T ED MATERIAL
(SEE TYPICAL SECTIONS) 0) 7 0) L N
m n

Q a
cl) 1,
FILTER FABRIC
WIRE
WISHED BED
ELEVATION
APPROX. 6" OF STONE
TOE ABOVE BASEFLOW
BASEFLOW
FILTER FABRI
NOTES,
1) WIRE SHALL BE MINIMUM OF 32" WIDE WITH
COMPACTED FILL
6 LINE WIRES WITH 12" STAY SPACING
STONE TOE APPROX. \

FABRIC SHALL BE MINIMUM OF 36"
2) FILTER
1 FT BELOW FINISHED
BED ELEVATION ND
WIDE AND FASTENED TO WIRE
I ? . ..? t .. ?' T 3) USE 5' STEEL POST MADE OF ANGLE IRON

DUNDATION:
WITH SELF-FASTENERS
B
t
t
NOTES: 1)ROOTWAD CLUSTER AND/OR .....
1
1. WHEN GEOLIFTS ARE BUILT ABOVE ROOTWAD 2)EOUL MIX OF CLASS A STEEL POST - 2-0- DEPTH
CLUSTER, USE EQUAL MIX OF CLASS 1 AND AND CLASS 1 RIPRAP
CLASS A RIPRAP BEHIND ROOT MASS TO BUILT
FOUNDATION
EXTENSION OF FABRIC AND
WIRE NTO TRENCH
GEOLIFT e SILT FENCE
4 NTS
e 4 HTs
H
PUBLIC ROAD z
1
U
2
Z
LU
U Z
Z
I
TTI
G SHA
RO
BE
TRO
S
ON CON
N
E
LL
L MA
I
I
H
EEP TRE
CH
STAKED
P =
-J
,
LACED
N 6
NC
N
,
D Z

°
° ?O
O BACKFILLED AND COMPACTED NOTES
1. BANKS SHALL BE SEEDED PRIOR TO PLACEMENT OF MATTING.
0
ELT
?
' TOP OF STREANBANK 2. EROSION CONTROL MATTING SHALL BE PLACED AND OVERLAPPED
T
ENDATIONS
T
F
RER RECO 0
R=40 R=4O
O O MANU
AC
MM
U
TYPICAL STAKE ACCORDING
3. MATTING STAKES SHALL BE PLACED IN A DIAMOND SHAPE PATTERN. W Y
TOE OF SLOPE U Q
EROSION CONTROL MATTING SHALL BE
PLACED IN 6 INCH DEEP TRENCH, STAKED,
m
O0 r BACKFILLEO AND COMPACTEA
TTOM OF CHANNEL
-BO
r LL
50' MINIMUM
0 THN
L
00 °
0

12' MINIMUM 2' STAKE
WITH NAIL
08
TYPICAL MATTING STAKE
0 0? CROSS-SECTION
THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECO-STAKE OR APPROVED EQUAL WITH THE
TRENCH FOLLOWING DIMENSIONS:
TRENCH 0 IN 27.91 CIA
LEG LENGTH 11.0
25
TOP O BANKS WIDTH I. IN 1 O
TOP O HEAD THICKNESS m OD DID
BANK -STAKE (TYP) LEG WIDTH 0.60 IN 1.52 CM TAPERED TO POINT) C m N n K
1 /
THICKNES 0.10 IN L02 CIA
• / • • • • 1 U 41 K
7
A
. 0
2 a, x
0 0
I
• • • •
• • •. Y
TOE OF 1 •- 1 • • • • 1 4)Y K
DID DID
C%l
PUBLIC ROAD
" / • • 1 • • / 1 a IM o j CO
m
MINIMUM THICKNESS
6 m o f ..

OF CLASS ASTONE
/ • • / 1 1 r x

o
a c to Y c m
ta
;o D
PLAN VIEW d
an
0 0 EROSION CONrka

0 MATTING TO BE EXTENDED
TO TRENCH AT TOE OF SLOPE
p 0
Baker Project Number
TYPE 2 FILTER FABRIC
1
4
1
AH-1
95
EROSION MATTING Date: 411412008
3
CONSTRUCTION ENTRANCE
4
e
4 NTS
e
Drawing Sheet No.
Sheet 3 of 3
46