20081713 Ver 1_Application_20081118

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F EASLEY LYNDO TIPPETT
GOVERNOR SECRET \RY
PO BOX 3279, ASHEVILLE, NC 28802
November 13, 2008
Mr David Baker
US Army Corps of Engineers 081713
151 Patton Avenue. Room 208
Asheville, NC 28801-5006
Subject Nationwide Permits #14
SR 1316, Brummitt's Creek Road
State Project No 13C 061016 (DWQ Minor Permit Fee $240)
Mitchell County, NC
Dear Mr Baker
I have enclosed a straight-line diagram with erosion control plan, a PCN application for
NWP #14, and a vicinity map relative to the proposed project on SR 1316 Brummitt's
Creek Road, Mitchell County, NC
Brummitt's Creek Road is currently a 14-16 feet wide gravel road Division of Highways
plans to pave the road 18 feet wide and increase the typical section Grading will be
moderate
We propose to replace/extend two (2) pipe culverts on Brummett Creek and an UT Total
culvert extensions will be 31 linear feet with a temporary impervious dike for dewatering
during installation Brummett Creek is an approximately 4-foot wide stream with
riffle/pool habitats and gravel/sand/silt substrate Bed/bank features are prominent
No stream relocation will be performed for the project Existing channel morphology
will be maintained upstream and downstream of the culvert The culverts will be placed
below existing streambed elevation whenever possible Riparian vegetation will be
reestablished along disturbed areas associated with the culvert extensions Stormwater
will be diverted through grass-lined ditches or vegetated buffers prior to entering streams
U

Mr David Baker
Page -2 SR 1316, Mitchell County
November 13, 2008
No effect on federally listed species (threatened or endangered) or their habitats is
anticipated
As a part of the 401 Certification process, a copy of the application will be forwarded to
the NC State Historic Preservation Office as required by Section 106 of the National
Historic Preservation Act of 1966 and GS 121-12(a)
By copy of this letter, we request Ron Linville, North Carolina Wildlife Resources
Commission Coordinator, to comment directly to the Corps concerning the permit
request
By copy of this letter, we are asking Ed Ingle, Area Roadside Field Operations Engineer,
to comment on the above project Brummett Creek is classified as trout A buffer
variance will be required for the entire project
By copy of this letter, I am forwarding four (4) copies of the application package to Brian
Wrenn, NC Division of Water Quality, 401/Wetland Unit and an additional copy to Mike
Parker, NC DWQ Asheville Regional Office for review and comment Please charge the
application fee of $240 00 to WBS element # 13C 061016 Please forward comments
directly to the Corps with copy to Division 13 Environmental Officer
Your earliest consideration for this request would be greatly appreciated If you have any
questions or information needs, please contact me at [phone]
Sincerely,
Ay- '0
Roger D Bryan
Division 13 Environmental Officer
Enclosures
cc J J Swain Jr, P E
D R McNeal, P E
Ed Ingle, CPESC
Ron Linville
Brian Wrenn
Mike Parker

Office Use Only: Form Version March 05
USACE Action ID No. DWQ No. 2 0 0 8 1 7 1 3
i.r -
kip any Naiumwai imm is iiw app icame to finis project please enter "Not Applicable" WNW' )
I. Processing
1 Check 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 NWP 14
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
Owner/Applicant Information
Name J J Swain Jr P E Division Engineer
Mailing Address NC Department of Transportation
P O Box 3279
Asheville NC 28802
Telephone Number 828-251-6171 Fax Number 828-251-6394
E-mail Address rdbryan a,ncdot Pov
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 ) N/A
Name
Company Affiliation
Mailing Address
Telephone Number Fax Number
E-mail Address
Page I of 9
III. Project 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 SR 1316 Brummitt's Creek Road
2 T I P Project Number or State Project Number (NCDOT Only) 13C 061016
3 Property Identification Number (Tax PIN) N/A
4 Location
County Mitchell Nearest Town Tipton Hill
Subdivision name (include phase/lot number) N/A
Directions to site (include road numbers/names, landmarks, etc) SR 1316 is located off of
NC 197 between Tipton Hill and Relief (see map)
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)
Site 1 3605511.30N 82 26991° W
Site 2 36 055115° N 81 269890 W
6 Property size (acres) 2 3-Acres
7 Name of nearest receiving body of water Brummett Creek (Class C-Trout)
8 River Basin French Broad
(Note - this must be one of North Carolina's seventeen designated mayor river basins The
River Basin map is available at http //h2o enr state nc us/admin/maps/ )
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 an existing two lane gravel road Surrounding
properties are residential and farmland
Page 2 of 9
10 Describe the overall project in detail including the type of equipment to be used We
propose to widen and pave SR 1316 and install erosion control measures The equipment to
be utilized includes an excavator backhoe and trucks
11 Explain the purpose of the proposed work We propose to grade drain, base pave and install
erosion control measures for SR 1316 Brummitt's Creek Road We propose to replace two
existing culverts with total additional impacts of 31 feet The additional pipe is necessary to
widen the typical section for a two lane paved roadway A small impervious dike with
jumper pipe will be constructed in the existing culverts for dewaterin during pipe extension
Total culvert extension will be 31 linear feet The culverts will be installed to insure aquatic
life passage within the streams
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 project9 If so, describe the anticipated work
and provide justification for the exclusion of this work from the current application
No, no future plans
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
Page 3 of 9
I Provide a written description of the proposed impacts We propose to replace/extend two (2)
culverts on Brummett Creek and an UT Total culvert extension will be 31 linear feet
2 Individually list wetland impacts 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
Floodplam
(yes/no) Distance to
Nearest
Stream
(linear feet) Area of
Impact
(acres)
N/A

Total Wetland Impact (acres) N/A
3 List the total acreage (estimated) of all existing wetlands on the property 0 0
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
Stream Impact Perennial or Average Impact Area of
Number Stream Name Type of Impact Intermittent Stream Width Length Impact
(indicate on ma) Before Impact (linear feet) (acres)
Site 1 9+20
( ) UT to Brummett
Pipe Culvert
Perennial
16
00004
Creek I
Site 1 (9+20) UT to Brummett
Creek Tem DewaterinQ
p
Perennial
1'
45
00010
Site 2 (16+50) Brummett Creek Pipe Culvert Perennial 4 15 00014

Site 2 (16+50)
Brummett Creek
Temp Dewatenng
Perennial 4'
70
00064

Page 4 of 9
Total Stream Impact (by length and acreage) 146' 0 0128
5 Individually list all open water impacts (including lakes, ponds, estuaries, sounds Atlantic
Ocean and any other water of the U S ) Open water impacts include, but are not limited to
fill, excavation dredging, flooding, drainage, bulkheads, etc
Open Water Impact
Site Number

(indicate on ma) Name

Wat
(if applicable) )

Type of Impact Type of Waterbody

(lake, pond, estuary, sound bay

ocean etc) Area of

Impact

(acres)
N/A

Total Open Water Impact (acres) N/A
6 List the cumulative impact to all Waters of the U S resulting from the nroiect
Stream Impact (acres) 0.0218
Wetland Impact (acres) 0.0
Open Water Impact (acres) 0.0
Total Impact to Waters of the U S (acres) 0.0128
Total Temporary Stream Impact (linear feet) 115
Total Permanent Stream Impact (linear feet) 31
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 )
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
Page 5 of 9
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 existing gravel road must
be improved to meet safetv standards for a paved roadway The pipe culvert extensions
requested are the minimum necessary to construct the roadway Riparian vegetation will be
established on disturbed areas associated with the project construction
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
http //h2o enr state nc us/ncwetlands/strmgide html
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)
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
Page 6 of 9
We do not feel that mitigation is warranted due to the minimal impacts of the pipe cul\,ert
extensions
If required, we propose to utilize the Ecosystem Enhancement Program EEP) for the
mitigation requirements for the proposed impacts NCDOT will be coordinating %Nith the
EEP to obtain the appropriate mitigation credits if required
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) - N/A
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
Regional Office may be included as appropriate Photographs may also be included at the
applicant's discretion
Page 7 of 9
I Will the project impact protected riparian buffers identified within 15A NCAC 213 0233
(Neuse), 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 Multiplier Required
(square feet) Mitigation
1 3 (2 for Catawba)
2 15
Total
* Zone 1 e% tends out 30 feet perpendicular from the top of the near bank of channel Zone 2 extends an
additional 20 feet from thL Ldge of Zont I
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
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 compacted gravel roadway acts as
an impervious surface Paving of the roadway should eliminate sedimentation from fines
associated with gravel surface treatment The roadway surface will be 40% of right of way
acreage Stormwater will be diverted through settling basins or grass lined buffers prior to
entering the streams
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
N/A
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H 0500) or any Buffer Rules9
Yes ? No
Page 8 of 9
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 quality9 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 eni state nc us/ncwetlands If no, please provide a short narrative description
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)
With regard to hazardous spill basins the road is not classified as an arterial route therefore
hazardous spill basins are not required
?- _ 1111312
() Applicant/Atent's Signature / /Date
(Agent's signature is valid only if an authorization letter from the applicant is provided )
Page 9 of 9
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Name HUNTDALE Location 036 0563677° N 082 2678263° W
Date 11/12/2008 Caption SR 1316 Brummitt's Creek Road
Scale 1 inch equals 1000 feet Mitchell County, NC
Copyright (C) 1998 Maptech Inc
rIgure 1 JK 1310 Jite 1 l I to Brummett Creel., Station 9+20, Mitchell County, NC
Figure 2 SR 1316, Site
Brummett Creel., Station 16+50, Mitchell Countv, NC

N

SHEET 1 OF 13
COUNTY: Mitchell TOWNSHIP: Bradshaw
PROJECT- SR 1316, Brummitt Creek Rd LENGTH: 2,245 feet, 0 43 miles
WORK TYPE grade, drain, base, pave, erosion control RURAL PRIORITY #: 14
LOCATION
From SR 1317, thus east for 0 43 miles SUED/RESID PRIORITY #
r6
R/W WORK ORDER NO. 1.._ l os' CONSTRUCTION W O. NO.
DATE' 7/11/03 SCALE. 1"=50' DRAWN BY: K E P
NOTES AND PROVISIONS PERTAINING TO STRAIGHT LINE DIAGRAM
1 Assigned right of way agent needs to verify all property owners Property owners shown on
the straight line diagram are taken from tax maps only
2 Fences to be moved off the right of way and reset off right of way by the Department of
Transportation crews Any new materials, posts, wire, etc to be supplied by the property
owner
3 Existing asphalt or concrete drives to be tied in with asphalt if the existing driveway is
within 20 feet of proposed centerline See any exceptions on straight line diagram
4 Driveway pipes to be furnished and installed as needed by Department of Transportation
crews in existing driveways
5 Existing water lines, sewer lines, drain lines, etc, under road project to be adjusted by
Department of Transportation as needed during construction Property owners to supply
all materials and release Department of Transportation from any liability
6 Underground utility lines to be located by owner Lines to be adjusted by owner as needed,
otherwise retain
7 Note proposed right of way markers shown on straight line diagram
8 Please inform property owners that cuts and fills could exceed proposed right of way
9 The erosion plan should be used for erosion control purposes only
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1 ,
SR 1316. BRUMMITT CREEK RD.
i
MITCHELL COUNTY
SHEET__Z_OF 13
TYPICAL SECTION
R/W 45'
F
R/W
E
A. FILL SLOPE 2 :1
B. SHOULDER SLOPE 1' PER FT.
C. DITCH SLOPE 3 :1
0. CUT SLOPE 1Y2:1
ABC COMPACTED
ABC LOOSE
TONS (DRIVES)
STONE BY
TONS (INTERS.)
TONS (ROAD)
TONS (TOTAL)

SHEET 3 OF 13
1 FULL
SUPERELEVATION
FULL SUPERELEVATION
SECTION - EE
2/3
SUPERELEVATION
2/3 SUPERELEVATION
PCOR P T
SECTION - nn
SUPERELEVATION =
NORMAL CROWN NORMAL CROWN
SECTION - CC
LEVEL NORMAL CROWN
SECTION - gg
NORMAL CROWN NORMAL CROWN
SECTION - AA
STANDARD METHOD FOR OBTAINING SUPERELEVATION
2 LANE PAVEMENTS
Ideally. 213 of superelevation is obtained at P. C. or P. T.
as shown on Section - DO
r '
Example: if maximum superelevation is +.06 -.06, the superelevation
at the point of curve or point of tangent is +.04 -.04
.06 X 2/3 =.04
Superelevation for 18' Pavement
.02
04 0.4' E.P. to E.P.
'
.
06 0.7
E.P. to E.P.
'
.
08 1.1
E.P. to E.P.
'
. 1.4
E.P. to E.P.
Normal Crown - 0.2 '
r

-,4 ,r -
f

EROSION CONTROL PLAN SHEET
Generally, the order of installation of the erosion control measures will be as
follows
Temporary silt basins shall be installed before clearing and
grubbing begins
Silt fences and temporary silt ditches shall be installed after
clearing and before grading
Temporary stone ditch checks shall be installed as soon as
ditch line is established
Pipe outlet and inlet protection will be done as soon as the
pipe is installed
Seeding and other permanent erosion control measures are
to be implemented as soon as practical
Temporary rock silt checks (type B) will be spaced as required
by percent of grade as described on page VI-16 in the Erosion
And Sedimentation Guidelines
No 5 stone, or equivalent, will be used in conjunction with
temporary rock silt check Type-B in locations where water is
leaving the project or entering a pipe
Silt basin size is 9'x3'x2' for 75 feet of disturbed ditch line unless otherwise
noted
Silt basin (Type B) are designed for 1800 cubic feet per acre every storm event
and cleaned out when half full
Per permit conditions for Corps of Engineers and the Wildlife Resources
Commission, all pipes in streams must be buried 12" below streambed elevation

t L
aZ
Sheet 5 of 13
PIPE INSTALLATION NOTES
1) Install erosion control devices In streams, where necessary, rock silt
screen will be used
2) Remove material and existing pipe while limiting, as much as possible,
material and sediment from entering the stream and/or escaping from project
3) Prepare pipe foundation while again taking care to limit, as much as possible
material and sediment from entering the stream and/or escaping from project
Where possible, new grade will be below existing streambed If needed,
bedding material will be clean stone
4) Place the new pipe and compact backfill.
5) Install slope protection on outlet and inlet ends of pipe Also complete
installation of erosion control measures and perform maintenance as needed
on existing measures
6) Establish permanent vegetation as soon as possible

..-a ter << '

DESIGN FOR SILT BASIN
1800 CUBIC FEET PER ACRE
CHECKED EVERY STORM EVENT AND CLEANED OUT WHEN HALF FULL
NOT TO SCALE
3 ? MIN
2'
>2
SILT BASIN - I
(S. B. 7 )
A?
MIN, 14,
SILT BASIN - 2
(S. B. 14 )
2' I
fro \
>! \ Mjti
2' 28.

SILT BASIN - 3
( S. B. 21 )
SILT BASIN - 4
( S. B. 28 )

EROSION CONTROL
DETAILS AND
SPECIFICAT.IONS
Std•
1630.03
1630.05
1605.01
1622.01
1630.01
1630.02
1633.01
1633.02
1634.01
1634.02
1635.01
1635.02
1636.01
Descriptio
Temporary n
Silt Ditch
Temporary Diversion
Temporary Silt Fence
Temporary Slope Drain
Silt Basin Type A
Silt Basin Type B
Temporary Rock Silt Check Type A -
Temporary Rock Silt Check Type B -
Temporary Rock Sediment Dam Type A -
Temporary Rock Sediment Dom Type B -
Rock Pipe Inlet Sediment Trap Type A -
Rock Pipe Inlet Sediment Trap Type B -
Rock Silt Screen
1630.04 Stilling Basin
Swmhol

TSO
- TO
D
A
Bo
3
Rock Inlet Sediment Trap
1632.01 Type A 000000
A?
- OR
- A
1632.02 Type B B LLOg - OR - B
1632.03 Type C C ?Q
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ROCK SILT CHECKS - OUTLET OF PIPE
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RR 24
EXISTING DITCH 7.5'
30' CSP
RR 30
EXISTING DITCH 9' munuumm 36' CSP
RR 36
EXISTING DITCH 10.5'
42' CSP
RR 42

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