HomeMy WebLinkAbout20051632 Ver 1_Complete File_20050929W A T ?9QG
o c
September 29, 2005
Buncombe County
V., DWQ Project No. 051632
NCSR 1122 (Old Pisgah Highway)
APPROVAL of 401 Water Quality Certification with Additional Conditions
Mr. J. J. Swain, Jr., P.E.
Division Engineer
N C Department of Transportation
Post Office Box 3279
Asheville, North Carolina 28802
Dear Mr. Swain:
You have our approval, in accordance with the attached conditions and those listed below, to impact 30 linear feet of two
(2) unnamed tributaries to South Hominy Creek (30 linear feet of new pipe and temporary dewatering), in order to make
improvements to NCSR 1122 (Old Pisgah Highway) in Buncombe County. The project should be constructed in
accordance with your application dated August 23, 2005 (received August 26, 2005) and revised application dated
September 12, 2005 (received September 15, 2005), including the environmental comments made in the application letter.
After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Nos.
3404 and 3366, corresponding to the U.S. Army Corps of Engineers Nationwide Permit Numberi 14 and 33. In addition,
you must acquire any other federal, state or local permits before you proceed with your project including (but not limited
to) Sediment and Erosion Control, Non-Discharge and Water Supply Watershed regulations. This approval will expire
with the accompanying 404 Permit unless otherwise specified in the Water Quality Certification.
This approval is valid solely for the purpose and design described in your application (unless modified below). Should
your project change, you must notify the DWQ in writing and submit a new application. If the property is sold, the new
owner must be given a copy of this Certification and approval letter, and is thereby responsible for complying with all the
conditions. If total wetland fills for this project (now or in the future) exceed one acre, or if total impacts to streams (now
or in the future) exceed 150 linear feet, compensatory mitigation may be required as described in 15A NCAC 2H .0506
(h) (6) and (7). For this approval to he valid, you must follow the conditions listed in the attached certification and any
additional conditions listed below.
Erosion and sediment control practices must be in full compliance with all specifications governing the proper design,
installation and operation and maintenance of such Best Management Practices in order to protect surface waters
standards:
a. The erosion and sediment control measures for the project must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Sediment and Erosion Control
Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control measures must be
such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina
Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow
sites, and waste pile (spoil) projects, including contractor-owned or leased borrow pits associated with the
project.
c. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated,
and maintained in accordance with the most recent version of the North Carolina Surface Mining Manual.
N we Carolina
Naturally
North Carolina Division of Water Quality 2090 U.S. Highway 70 Swannanoa, NC 28778 Phone (828) 2964500 Customer Service
Internet: h2o.enrstate.nc.us FAX (828) 299-7043 1-877-623-6748
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
An Equal Opportunity/Affirmative Action Employer
Mr. J. J. Swain, Jr., P.E.
September 29, 2005
Page Two
d. Any reclamation measures and implementation must comply with the reclamation in accordance with the
requirements of the Sedimentation Pollution Control Act.
2. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the footprint of the
impacts depicted in the Preconstruction Notice Application. All construction activities, including the design,
installation, operation, and maintenance of sediment and erosion control Best Management Practices, shall be
performed so that no violations of state water quality standards, statutes, or rules occur.
3. Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum extent practicable.
If placement of sediment and erosion control devices in wetlands and waters is unavoidable, they shall be removed
and the natural grade restored within six months of the date that the Division of Land Quality has released the project.
4. Sediment and erosion control measures for sensitive watersheds [ 15A NCAC 04B .0124 (a)-(e)] must be used prior to
construction and maintained until any disturbed soils are permanently stabilized. Temporary or permanent
herbaceous vegetation should be planted on all bare soil within fifteen (15) days of ground disturbing activities to
provide long-term erosion control. Erosion control mating should be used in conjunction with appropriate seeding on
disturbed soils in steep slope and riparian areas. Matting should be secured in place with staples, stakes or wherever
possible, live stakes of native trees. Tall fescue should not be used in riparian areas. Riparian vegetation must be
reestablished within the construction limits of the project by the end of the growing season following completion of
construction.
5. Culverts that are less than 48-inch in diameter should be buried to a depth equal to or greater than 20% of their size to
allow for aquatic life passage. Culverts that are 48-inch diameter or larger should be buried at least 12 inches below
the stream bottom to allow natural stream bottom material to become established in the culvert following installation
and to provide aquatic life passage during periods of low flow. This may require increasing the size of the culvert to
meet flow conveyance requirements. If any of the existing pipes are perched, they shall be removed and replaced, and
re-installed correctly, unless demonstrated that this is topographically unfeasible.
6. Rock check dams at culvert outlets should be removed at the project completion to avoid impeding the movement of
aquatic life.
7. The dimension, pattern and profile of the stream, above and below the culverts, should not be modified by widening
the stream channel or reducing the stream depth. Disturbed floodplains and streams should be restored to natural
geomorphic conditions.
8. Stormwater shall be directed to vegetated buffer areas, grass lined ditches or other means appropriate to the site for
the purpose of pre-treating stormwater runoff, and must not be routed directly into streams. Mowing of existing
vegetated buffers is strongly discouraged, so that they may be utilized for stormwater diffuse flow.
9. Removal of vegetation at the stream crossings and adjacent to streams should be minimized. Native trees and shrubs
(e.g. Rhododendron, dog hobble, willows, alders, sycamores, dogwoods, black walnut and red maple) should be
planted along the streambank to reestablish the riparian zone and to provide long-term erosion control in the vicinity
of the road crossing and along the streams within dedicated rights of way.
10. Any riprap placed for bank stabilization should be limited to the streambank below the high water mark, and
vegetation should be used for stabilization above the high water elevation. Riprap should not be place in stream
channels in such a manner that it impedes aquatic life passage.
11. Heavy equipment must be operated from the banks rather than in the stream channel in order to minimize
sedimentation and to reduce the likelihood of introducing other pollutants into the stream.
12. All mechanized equipment operated near surface waters must be regularly inspected and maintained to prevent
contamination of stream waters from fuels, lubricants, hydraulic fluids, or other toxic materials.
13. Excavation of the stream crossings and relocations should be conducted in the dry, if possible. Sandbags, cofferdams,
flexible pipe or other diversion structures should be used to minimize excavation in flowing water.
14. If concrete is used during culvert construction (e.g., headwalls), a dry work area should be maintained to prevent
direct contact between curing concrete and stream water. Water that inadvertently contacts uncured concrete should
not be discharged to surface waters due to the potential for elevated pH and possible aquatic life and fish kills.
15. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent to surface waters is
strictly prohibited.
16. The presence of equipment in the channels must be minimized. Under no circumstances must rock, sand or other
materials be dredged from the wetted stream channel under authorization of this permit, except in the immediate
vicinity of the culverts. In-stream dredging has catastrophic effects on aquatic life, and disturbance of the natural
form of the stream channel will likely cause downstream erosion problems, possibly affecting other landowners.
Mr. J. J. Swain, Jr., P.E.
September 29, 2005
Page Three
17. This certification does not authorize the discharge of waste rock and dirt into the stream or riparian zone except for
permitted areas associated with the culvert extensions.
18. All work shall be performed during low flow conditions (below bankfull).
19. Upon completion of the project, the NCDOT shall complete and return the enclosed "Certificate of Completion " form
to notify NCDWQ when all work included in the §401 Certification has been completed. The responsible party shall
complete the attached form and return it to the Transportation Permitting Unit of the NC Division of Water Quality
upon completion of the project. The NCDOT is strongly advised to send in photographs upstream and downstream of
each structure to document correct installation.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act
within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to
Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone Mr. Mike Parker of the Asheville Regional Office at 828.296.4500.
Sincerely,
Alan W. Klimek, P.E., Director
Division of Water Quality
Attachment
cc: Roger Bryan, Division 13, DEO
Ed Ingle, Roadside Environmental
Angie Pennock, USACE Asheville Field Office
Transportation Permitting Unit
Mike Parker, Asheville Regional Office
004
V ? ? : .? ?T?'?o FNS. j ? v
sr FR ?S
STATE OF NORTH CAROLINA Re'?aoy
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDO TIPPETT
GOVERNOR SECRETARY
PO BOX 3279, ASHEVILLE, NC 28802
September 12, 2005
Mrs. Angie Pennock
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
Subject: Nationwide Permits #14 & # 33 - Application Revision
SR 1122, Old Pisgah Hwy (a.k.a. Brendell)
State Project No. 13C.011086 (DWQ Minor Permit Fee $200)
Buncombe County, NC
Dear Mrs. Pennock:
I have enclosed a revised straight-line diagram with erosion control plan and revised
stream impact chart for the requested NWP #14 & #33 relative to the proposed project on
SR 1122, Old Pisgah Hwy (a.k.a. Brendell), Buncombe County, N.C.
Division of Highways plans to impact an additional 10 linear feet of stream at Site 1
(13+86) for a total of 20 linear feet. The impact for the entire project will be 30 linear
feet of stream impact. It should also be noted that the concrete box culvert at Site 1
(13+86) will be removed and replaced with a 51" metal pipe.
Existing channel morphology will be maintained upstream and downstream of the
culverts. The culverts will be placed below existing streambed elevation. 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.
By copy of this letter, we request David McHenry, North Carolina Wildlife Resources
Commission Coordinator, to comment directly to the Corps concerning the permit
revision request.
Mrs. Angie Pennock
Page -2 SR 1122, Buncombe County
September 12, 2005
By copy of this letter, I am forwarding seven (7) copies of the application revision 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
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 (828) 251-6171.
Sincerely,
Paul G. Wiesner
Division 13 Environmental Specialist
Enclosures
cc: J.J. Swain, Jr., P.E.
H. M. Coates, P.E.
Ed Ingle
David McHenry
Brian Wrenn
Mike Parker
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: We propose to remove one existing
concrete box culvert on an UT to South Hominy Creek and replace it with a 51" metal pipe.
We additionally plan to extend an existing culvert on an UT of South Hominy Creek. Total
culvert extensions will be 30 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,
__?..1.. 1:- A- 4n hnO, efrilmime and flnnding_
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
-
7
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
t b included To calculate acreage multi 1 len h X width, then divide b 43,560.
mus
Stream Impact
Number
indicate on ma e
Stream Name
Type of Impact
Perennial or
Intermittent?
Average
Stream Width
Before Impact
Impact
Length
linear feet
Area of
Impact
acres
Site 1 (13+86) UT of South
Hominy Creek Box Culvert
Extension Perennial
4 20' 0.00184
Site 2 (24+75) UT of South
Homin Creek -_
Culvert Extension Intermittent 1 10' 0.00023
Total Stream Impact (by length and acreage) 30' 0.0021
Page 4 of 9
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 of Waterbody
(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 project
Stream Impact (acres : 0.0021
Wetland Impact (acres): 0.0
Open Water Impact acres : 0.0
Total Impact to Waters of the U.S. acres 0.0021
Total Stream Impact linear feet): 30'
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 USAGE.
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:
VII. Impact Justification (Avoidance and Minimization)
Expected pond surface area:
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
Page 5 of 9
NC t)oT R/vw
\p-
31
SR I ? 2 2 PG.
Sf
HENRY M, PIOT'O
I I 3ro4Sd/ Sod /
30-?" CAP NEB P",)70
9r5j('6 T P. 3b? g 1540
W 00 D5
3y
3 Y.
3?
3'BRANCH
.13 •
qq ? ?3
in
I ?
I I?
?- - to GR DR,
?RoP, 25" IS"CMP
I I Z'x3'xG
3
CAC
v
• HiGHPOiNT 11+32
•
I I I
nq
I I?
•
I I
E. O. P IO t IO
8
MARY CLEVINGER
z?65/140
A AA7[ a O v
.?.,, l of 6'
?NOS?MwgFr? ,j
STATE OF NORTH CAROLINA 84144
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDO TIPPETT
GOVERNOR SECRETARY
PO BOX 3279, ASHEVILLE, NC 28802
August 23, 2005
Mrs. Angie Pennock
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
051632
Subject: Nationwide Permits #14 & # 33
SR 1122, Old Pisgah Hwy (a.k.a. Brendell)
State Project No. 13C.011086 (DWQ Minor Permit Fee $200)
Buncombe County, NC
Dear Mrs. Pennock:
I have enclosed a straight-line diagram with erosion control plan, a PCN application for
NWP #14 & #33, and a vicinity map relative to the proposed project on SR 1122, Old
Pisgah Hwy (a.k.a. Brendell), Buncombe County, NC.
Old Pisgah Hwy (a.k.a. Brendell) 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 light.
We propose to extend one existing concrete box culvert on an UT to South Hominy
Creek and we propose to extend one pipe culvert on an UT to South Hominy Creek.
Total culvert extensions will be 20 linear feet. The UT of South Hominy Creek at Site 1
is an approximately 4 foot wide creek with riffle/pool habitats, sand substrate, and
bed/bank features. The UT of South Hominy Creek at Site 2 is an approximately 1 foot
wide heavily vegetated feature with a loamy clay substrate and appears to be a "wet
ditch".
No stream relocation will be performed for the project. Existing channel morphology
will be maintained upstream and downstream of the culverts. The culverts will be placed
below existing streambed elevation. 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.
1 ?V.
P
Mrs. Angie Pennock
Page -2 SR 1122, Buncombe County
August 23, 2005
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 David McHenry, 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 Environmental Engineer, to
comment on the above project. Temporary encroachment into the buffer zone of the UT
will be required for the entire project (1,525 feet). South Hominy Creek is classified as
trout. A buffer variance will be required.
By copy of this letter, I am forwarding seven (7) 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 processing fee of $200.00 to WBS element # 13C.011086. 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 (828) 251-6171.
Sincerely,
Pr 0.6"'r-
Roger D. Bryan
Division 13 Environmental Officer
Enclosures
cc: J.J. Swain, Jr., P.E.
H. M. Coates, P.E.
Ed Ingle
David McHenry
Brian Wrenn
Mike Parker
Office Use Only' Form Version March 05
20051 632
USACE Action ID No. DWQ No.
(It any particular item is not appttcaoie to Tilts project, pICaSC Clllei INVl PIPP Icaulc vl IVIt% .)
I. Processing
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, NWP 33
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
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: pwiesner0)dot.state.nc.us
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 1122, Old Pisgah Highway (aka Brendell)
2. T.I.P. Project Number or State Project Number (NCDOT Only): 13C.011086
3. Property Identification Number (Tax PIN): N/A
4. Location
County: Buncombe Nearest Town: Candler
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): Heading south on NC
151 take a right on SR 1123 and an immediate left onto SR 1122.
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: 35° 31' 41.60" N 82° 42' 6.32" W
Site 2: 35° 31' 37.01" N 82°42'21.76" W
6. Property size (acres): 1.55-Acres
7. Name of nearest receiving body of water: Unnamed Tributary (UT) of South Hominy Creek
(Class C-TR)
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 http://h2o.enr.state.nc.us/admin,,mans/.)
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 gravel road. _ Surrounding properties
are agricultural and residential land.
Page 2 of 9
10. Describe the overall project in detail, including the type of equipment to be used: We
propose to grade drain base pave and install erosion control measures for SR 1122-Old
Pisgah Hwy (aka Brendell). The equipment to be utilized includes 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 1122-Old Pisgah Hwy (a.k.a. Brendell). We propose
to extend one existing concrete box culvert on an UT to South Hominy Creek and an existing
culvert on an UT of South Hominy Creek. Total culvert extensions will be 20 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 project? 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
Page 3 of 9
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: We propose to extend one existing
concrete box culvert on an UT to South Hominy Creek and an existing culvert on an UT of
South Hominy Creek Total culvert extensions will be 20 linear feet.
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
Floodplain
es/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
Number
indicate on ma
Stream Name
Type of Impact Perennial or
Intermittent? Average
Stream Width
Before Impact Impact
Length
linear feet Area of
Impact
acres
Site 1 (13+86) UT of South
Creek Box Culvert
Extension Perennial
4' 10' 0.00092
Site 2 (24+75) UT of South
Homin reek Culvert Extension Intermittent
1' 10' 0.00023
Total Stream Impact (by length and acreage) 20' 0.00115
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.
Page 4 of 9
Open Water Impact
Site Number
indicate on ma Name of Waterbody
(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 project.
Stream Im act acres : 0.00115
Wetland Impact acres): 0.0
Open Water Impact (acres : 0.0
Total Impact to Waters of the U.S. acres 0.00115
Total Stream Impact (linear feet : 20'
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:
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 secondary road
must be improved to meet current safety standards for paved roads. The culvert extensions
requested are the minimum necessary to establish an appropriate typical section for the roadway.
Page 5 of 9
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/stnngide.htm1.
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.
We request that mitigation not be required for the culvert extension at Site 2 (24+75) due to
the low quality of the associated unnamed tributary of South Hominy Creek. We propose to
utilize the Ecosystem Enhancement Program (EEP) for the mitigation requirements for Site 1
(13+86) and if applicable, Site 2. NCDOT will be coordinating with the EEP to obtain the
appropriate mitigation credits.
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
(919) 715-0476 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
Page 6 of 9
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wW/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)
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 (919) 733-5083 to review current thresholds for environmental documentation.
Yes ? No
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.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .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
I Required
Mitigation
I 3 (2 for Catawba)
Page 7 of 9
* Zone I extends out 30 feet perpendicular from the top of the near bank of channel; Gone 1 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 213.0242 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.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A 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/ncwet]ands. If no, please provide a short narrative description:
Page 8 of 9
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
9 Applicadt/Agent's Signature ' Date
Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
082' 43'0.00" W 082'42'0.00" W 082' 41'0.00" W
r }
r 7
? N
t
?/?ir, ? L.' ?' i I .•?• •?' •>!t ?r? ? t`? ? ? ? -rs_._?"; i ?/'..?7 rtl-? 1 N?• ? •.d '4i •
-- _. (Ir10? .• ?_. ..., }, _? --. tr 1J? •%. N.... ?/ Jr \a r?'c
,,• $o p? u,, - ? it ?. i ;?+lr
.tom _ n '-. , tr I ,,r? ? ?'??./ Y• r?El? ? '//--?? ?r ? ? ? ?
'' k?"
Atli"
1
7 ,: rr /? ?'}? ', \` ? 'IS? Slte 1 ?1?V'- ?:. 1, ?'?_, t ?'ti? ?
:? 4 r t i
? ? ti I . r 2j ? ? . ! "s.•'
r
rr „..
:,? •f
wa,
rr ? y/
P10 U
lljt
{ • q S
.? n.t a - fi _ n+ • i
kli,
i _ l ???? ; i i???-J?r •?.-. !/,ll -? t- ? ?.-.. f !/-ti' {R4'',y4 i I'.
r u
6- W
082' 43'0.00" W
082' 42'0.00" W
082' 41'0.00" W
z
g
0
Cf)
0
Z
8
O
N
co
M
O
Z
8
M
M
0
Name: ENKA Location: 035' 31'37.79" N 082' 42'06.72" W
Date: 8/22/2005 Caption: SR 1122 Old Pisgah Hwy (aka Brendell), Buncombe County,
Scale: 1 inch equals 2000 feet North Carolina
Copyright (C) 1998, Maptech, Inc.
Photos: Site 1 : Concrete Box Culvert Extension -SR 1122, Buncombe County, NC.
Photo 1: A view of the upstream section.
Photo 2: A view of the downstream section.
I!
Photos: Site 2: Pipe Culvert Extension -SR 1122, Buncombe County, NC.
Photo 1: A view of the upstream section.
Photo 2: A view of the downstream section.
N.C. DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
SECONDARY ROAD SURVEY
SUBJECT: SR 1122 Old Pisgah Hwy (a.k.a. Brendeil?
LOCATION: From EOP to EOM
WORK TYPE: Grade, Drain, Base & Pave
WORK ORDER: 13C.011086 PRIORITY: 52
COUNTY: Buncombe TOWNSHIP: Upper Hominy
DATE: 02-14-05 SCALE: 1"=50'
NOTES: 45' R/W
.29 mi.
PREPARED BY: JPR
(:
STATE OF NORTH CAROLINA
DIVISION OF HIGHWAYS
EROSION SYMBOLS
?TD # DESCRIPTION
45.03 TEMPORARY SILT DITCH --------------------------------------------- rsD
'45.05 TEMPORARY DIVERSION ---------------------------------------------- ro -?.
93.01 TEMPORARY SILT FENCE ---------------------------------------------
190.05 TEMPORARY SLOPE DRAIN WITH EARTH BERM ------------------ -I
'45.01 SILT BASIN TYPE A --------------------------------------------------------------- -O
'45.02 SILT BASIN TYPE B --------------------------------------------------------------
192.04 TEMPORARY ROCK SILT CHECK TYPE A ------------------------------
TEMPORARY ROCK SILT CHECK TYPE B ------------------------------- -
192.01 TEMPORARY ROCK SEDIMENT DAM TYPE A ----------------------- ®
192.02 TEMPORARY ROCK SEDIMENT DAM TYPE B ------------------------ -
197.01 ROCK PIPE INLET PROTECTION --------------------------------------- ---- -
94.01 ROCK SILT SCREEN --------------------------------------------------------------- -'
45.04 STILLING BASIN --------------------------------------------------------------------- -®
48.01 RIP RAP ----------------------------------------------------------- ------- RR
DITCH LINER -----------------------------------------------------------
ENVIRONMENTALLY SENSITIVE AREA------------------------------
PIPE OUTLET ENERGY DISSAPATOR --------------------------------------0
EROSION CONTROL MATTING ----------------------------------- ECM
FIBER GLASS ROVING ----------------------------------- -----• FGR
SILT CHECK DAM TYPE-A ------------------------------------------------------- O
SILT CHECK DAM TYPE--B-------------------------------------------------------
O N
C
N N
:-
z cn
c n
N T
m w w w N N w N
wwwwwwo
- (p x
in a io
cn x
N
? C
L O
t0
N
O
m L C E
Ul M O
U
m E O
Q d
E m d d L
o o
m ?
€ 'a °y m L
c
M y 3 3
m
o ? O
Z c
a a
SQ
c
c
N lr?
E
?i
N N
'? O
7 " N O M
? L O O
N Or
0 Ol C - OI _
D y y C 0
? E m ?
c O II Cr Qi C 11 tll
'
An _ N N
M N d
}
N d? N 3 d
C
d
N
= N
d M C
y o
w
? Q Q
T
3
L
O)
N
'a
32
c
O N O
N a N
?
U
3°
C V T
LO 00 rn w
m
W L)
d
U
C
N N
m 0 Go 1)
Of n N N N
N
m
u
m
v r-- v rl- h 0
0 0 0 0 0 0
0 0 0 0 0 0 0
m
d
Q
. N
y N "GO r0 O N N O
rn°DOrnnG10fr7
Q N co N c'7 N to
N L
-e N C O N 12 L2 O v
y N N7 N N
O 'J
V
u?Inrnlnrnv??
O
N S
_ S
°
.0
N
CO 0" }}}}}}?
w
L
rn
O) N d W d W
? ?Q-. J J J J J
a>
J
T t « L
m _N C N
c d; O. n «?
7
ccncgoa ina 3
M ? N OOi V N
m ;t
cn - N N N N
N
O O O g 0« 0 0
N O N rn O p v
O M co O cp
+ + + + + + +
O ^ V O N "
N N N
C? C C C C
N N N N N
y 0 O O O O
E c v c c c cy5 c 'ux
E y U U c U U U
Eo L o; .2 y o o o 06
U U N w C N 0 N 3
ID 0 0 0 0 0 0
? p W U) I V) w w in W in
U
L C O O O M 0 1) 0 0 0
U .V ? M ? n M M
in `L
N
c am
f0 M ?-- M I? N '7 ? M ?
a ?
N O to O N O N 00
M O w w w O 00"
fn vNN NN
0 0 0 .2 0 0 0 0! 2
to Ln
05 O m O 0
05 a0 co Go
co
O t c Y N O. + f. .
?-' •- N N N
EROSION CONTROL PLAN SHEET
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.
Silt basins (Type B) will be constructed to the dimension of nine feet by
three feet by two feet unless otherwise noted on plans. (See SB-9 on
dimension sheet)
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.
PIPE INSTALLATION NOTES
1) Install erosion control devices. In streams, where necessary, rock silt
screens 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 the
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 the project. Where possible, new grade will be below the 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.
ROADWAY DITCH AND MEDIAN LINING GUIDELINES
Percent of Grade Type of Lining Recommended
0%----
Straw And Tac
1 % ----
2% Erosion Control Matting
3% ----
4% Erosion Control Matting
5% ----
Greater Stone
Stage Seeding:
The work covered by this section shall consist of the establishment of a vegetative cover
on cut and fill slopes as grading progresses. Seeding and mulching shall be done in stages
on cut and fill slopes which are greater than 20 feet in height or greater than 2 acres in
area. Each stage shall not exceed the limits stated above.
PIPE OUTLET ENERGY DISSIPATOR:
A pipe outlet energy dissipator shall be used at pipe outlets to slow the water
velocities when it exits the pipe and flows out ditched or natural waterways. It is
an apron of stone of a sufficient thickness to protect the outlet area from scouring
out and causing'off-site sedimentation damage. Pipe outlet energy dissipators
should be built according to the guideline chart shown on page VIII-3 of this
manual. _
AREAS OF USE:
• Outlets of pipes and culverts to prevent scouring.
DESIGN CRMRIA:
• In accordance with chart on page VIII-3.
• Filter fabric, or six inch layer of gravel, shall be used under stone.
MATERIALS :
• Filter fabric shall meet requirements of section 1056 of Standard
Specifications for Roads and Structures, January 1, 1990, for type II filter
fabric.
VI-34 March, 1993
A
d
m C
Q L
cc U
o =c cis
04)
ao
C. Z '
Q
A?
W
C
b
C
O ?
WO
m
a
0-
?..a
VI-35
ltz V
C
d
CO
?.
0
f? a
Au ? s
Q
C
0
d
C0
L.
O
cz
Q.
cn
0
2)
W
a?
O
CL
^ ? v
C ? O
0 0 0 0
h
0
moo ;v '? ;?
u 3 ? r»
a3AC/)
160
MWh.19§3
l.
DESIGN FOR'
( S.6.6 )
3'
2'
SILT BASIN NOT TO SCALE
CHECK EVERY STORM SENT AND
CLEAN OUT WHEN HALF FULL.
600 CUBIC FEET PER ACRE.
°Ir??
(S-8-7)
zY?
3'A (S.B. 21)
r ??? 2-W
2'
( S.B. 28 )
i
3'
2'
( S.B. 9 )
LENGTH OF DISTURBED AREA
3'
r 14'
21 1 (:
(S-8-14 )
LENGTH OF DISTURBED AREA
LENGTH OF DISTURBED AREA
LENGTH OF DISTURBED AREA
i
I
i
SILT BASIN TYPE-B:
A silt basin type-B is a temporary basin built to collect sediment flowing through a
drainage way. The silt basin is built at the base of the ditch with its length being at
least 2 times the width of the basin. The type-B silt basin is generally built in
conjunction with temporary rock silt checks and other devices that control or slow
down water flow. This device must be monitored closely and cleaned out on a
regular basis until grass is established along the ditch line and sedimentation is no
longer a problem.
AREAS OF USE:
• In conjunction with temporary rock silt checks and other devices used in
drainage ditches.
DESIGN CRITERIA:
Width - variable
Length - 2 times width
Depth - 2 ft. minimum storage - 1800 cubic feet/acre (equals L x W x D)
23 March, 1992
Im
°
F v
I
N
;,)'?a? ???, IIIII II I III
?
,\,;"\, ').
`
:
?`
)
`
'
II
I ? IIII
;
??
:
;
;;
i•
4 ? I
I ? -
)
.j ?"
\y?:.i ?\`: ay\ d
S
111111
m
v,v?
?)ry ?wi
?
i
' "\''' '? `?
IIII z;rl
%An I
`
` III 11 `
a L,LjLP?
)
) IIIII '='z
m
N
t IIIII ?- o--
J
;y
?,?,,:, J __ ? IIIII W ?, zz?
_
•
y
'I ° F
IIIII Z v
\?"
Hill 1111111=
u
W A r 'WA II -
III
'
? IIIII ? III II ?
? \ ",
I
I
? '
y
` :;)i a 111 I ; 11111 v,
FI
ZI CI
1\
?
a;
;. =
I ? E
c%I
i.
_ cl
d
zl
24 March,1992
TEMPORARY SILT DITCH:
TSD
A temporary silt ditch shall be used in place of silt fence in many situations.
Temporary silt ditches shall be used at the toe of fill slopes to divert runoff into
sediment basins, temporary rock sediment dams, temporary rock silt checks and/or
other sedimentation control measures. Temporary silt ditches are approximately 1
ft. deep, 2:1 side slopes with an optional earth berm.
AREAS OF USE:
• Toe of fill slopes where fill exceeds 3 ft in vertical height.
• Along streams to intercept flow and/or divert to a controlled outlet.
13 March, 1992
>i
p?fM
zim
f?N
U
E--
a cn d
d ,. Z.
w r
o?
0
d 0 Q `' Z
F , ? F---I LL Z Z
m
/ Do
W zZ
w O ..
Q Jam.
> 0 C l r n
Q ?
o
a Q
i 0
?
w Q
?
Z
Q cn
?
o
Ct
o
J
kCz
zl a
?.
f G O
L.?
B
j
?"
R
I l
? n
C
zl.x
1 4 March, 1992
TEMPORARY SILT FENCE:
A temporary silt fence is commonly used at the toe of a fill section to prevent off-
site sedimentation. It is made of permeable filter fabric buried at the bottom,
stretched and supported by steel posts. The silt fence reduces the water flow while
retaining the sediment. They may also be used to divert water flow to protected
outlets. Silt fences need to be checked after each significant rainfall to ensure there
effectiveness. They must be maintained on a regular basis. Silt fences shall n= be
installed across streams, ditches, or waterways.
AREAS OF USE:
• At toe of fill sections where sediment runoff can be stored and contained
inside the project limits.
DESIGN CRITERIA:
Material With Wire Without Wire
Fabric Type 3 Class A Type 3 Class B
Steel posts length 5 ft 5 ft.
Post spacing 10 ft. 6 ft. maximum
17 March, 1992
C2
33
2 ~
O
32
x3
? X
m Q
CD
I
wx
?Z
x
U 0
.., ¢
f-- C7
Cr_
W
Z N
¢m
w
_j -J
O --?
_O =
O ?
QZ
m?
c" W
?CD
Q
o
F-- 0
0-
Co _
LL)
o m
¢ J
J
o=
HN
U
0
m
LL
m
w
J
LL
W
cc:
3
Cr_
Co
Li. Cr
Ix ~
w3
F- O
J
LL ¢
J
J
0
w
I-
U
Q.
x
O
U
o
L z
_? I
I 1
'
I m m
I "
-
: ?'
=1 z
mw
I I
--------- ----
- ---- ,L_
,
- --? O
------- ---- I Z 0
0 ?-
z
z
- io -•? W W
X..
W3
¢ Cr_
w
2
M
cc Z
W 0
W
W z
,? 3
z I-
¢
2
_ Z
¢ ¢
V) ¢ m 2 m
LL
j fV Co J O W
¢ w w
(n CD
= 2
_j 2: z
m
L f)
J
LLJ
m
¢ J U)
¢
2: 0 -j W z J
P
2
a 3
V) Z I- w¢
w
Lei J
J cc
W
m = N
cnW U S¢= u
m 0 >- 3: LLJ
D: Cr ?- ° F--
CO 0 w
m ?- N
J
2 Z 3
¢ ¢
0} (n
LL 3 ¢mo
O J
w F- ¢
Lr)
?
w w
2 Z
?-•
Q
m z 0 0
- w
w
~w
a.
F-
cn o0
D_
Z
.?
J ? z
Z
C I w 0
M
0
3 3 cD V) LL J
U.
¢ LL cn a: N .
CD J
L7 0
3 0
w ZLL
•. o 0- LL ¢...
cn o LL 0 w
s z
¢ Z..
¢
0
z -
0
a
wm
LL
0
C -.
zm
Q r?
1~i! to °°
LLI
Z
LLJ
LL
_J
crn ca
BTU
>- UC?z
Q `'C'TT
00 Cw
CL Z a
OZ
D
W
~ w>_
p 1-C
Q Cn
Z
Q
U)
O
.O
N
t
I!
VI-7 March, 1993
ROCK SILT SCREEN:
3
A rock silt screen is a low-level dam structure to be used in streams below culvert
sites. Rock silt :screens shall be used to trap sediment transported by iunning water;
and shall be placed'iii-the stream below the construction site within Wi -right-of- -'
way.or easement boundary..The rock silt screen utilizes class B stone lined with ##5
,.or #57 stone to produce a ripple-effect in the stream to settle the larger sediment
particles transported in the stream from the construction site. The trapped sediment
shall be cleaned out before the device is removed from the streamr.- - -
AREAS OF USE:
• In live streams below construction sites where construction occurs in or
adjacent to the stream.
• In live streams below a culvert construction site.
• Where it can be cleaned before it is removed from stream.
DESIGN CRITERIA:
Structural stone - class B stone
Sediment control stone - # 5 or # 57
Dam height - 1.5 ft. minimum and 3
1 ft. above normal flow of stream)
stone
ft. maximum ( shall not be higher than
VI-24
March, 1993
1
?l
w,
>
0
m
co
co
0
W
a r? ca E' z
x AE'c.??z zo?a?z d??
En zzE- °-O a. W AE O
WDd¢Wtn v1o E-: w a
zv2a zmQA C)
(? W M 0 W. W O
Cs V) fwd
"]WV)--ru Ou??UZW W Cap
d
jW VaOWZ0WHZOQOZ
Er z
E C4 00owwZE-. WN?W>
000 dtl.0m 0
W E?W- 3 E.- ?- V)0 Wd[404X 7d?
Oto WO?.00"aV)
Z ZFOfxzd fEs-'G'
?UfnUE-V 0fnCs.CL? fn .rC?
w
w .
M
LL
X
S
o
Z F-
t W
4 !
A!
y (n
V)
.. ; ' ,. 0
N L U
r
.
tX
• VI-25 11/tewnt 1 M9
.z
w
. .w
U
(1)
I- e
z
J f,
^
H O
? U
V
3
x=Z
U
0
0 0
?
0 .
cx.
O v,
0 L•`>
_
?C
C.) cn
z
Q
O
h
TEMPORARY ROCK SEDIMENT DAM TYPE-B:
U
A temporary rock sediment dam type-B is a small dam structure with a weir outlet
and a built-in sediment basin. Type-B temporary rock sediment dams shall be used
in drainage ditches to detain sediment-laden runoff and to trap sediment to protect
receiving streams and adjacent property. The type-B temporary rock sediment
dams utilize class-B stone lined with #5 or #57 stone in conjunction with a built in
basin to trap sediment. They shall not be used in live streams.
AREAS OF USE:
• At outlets of temporary diversions, temporary silt ditches, channels, and
temporary slope drains.
• In locations where the dam can be cleaned and maintained on a regular
basis.
• In locations where runoff is exiting the construction site.
• In small natural drainage turnouts.
DESIGN CRITERIA:
DRAINAGE AREA
acre
1
2
3
4
5
MINIMUM WEIR LENGTH
4.0
6.0
8.0
10.0
12.0
• Storage capacity - 1800 cubic ft./ acre to be cleaned out when half full
(approximately 3-4 times a year).
• Side slopes - 2 :1 (or flatter).
• Structural stone - class B stone.
• Sediment control stone - #5 or #57 stone.
• Length of apron - approximately height of dam.
31 March, 1992
TEMPORARY ROCK SILT CHECK TYPE-B: '
A temporary rock silt check type-13 (also called check dam) is a small-dam with
weir used to reduce gullying in drainage ditches that are to be filled or a
permanently stabilized at a later date. These type-B rock silt checks help reduce
the flow velocity and are generally made of class-B stone. They are used in
during construction where the grade meets and/or exceeds 3%. ditches
AREAS OF USE:
• In channels, roadside ditch outlets, temporary silt ditche
diversions. s, and temporary
• In conjunction with type-13 silt basins.
DESIGN CRMRIA:
• Center of rock silt check shall be at least 1 foot lower than the outer ed es
(top of channel sides) g
0 The spacing (ft.) = (3 / % of ditch grade) X 100 ft.
W I-
co u
W
Q
J
O .
J ?
(n020zz
?(n000
- W
mZOW~(!)
oz=(ro
JUaF-W(r.
Q-w
°
¢
N
m
UOm
WO OCCW•
Z a: Ln LL
C.W
(n
2 W0W(,o
z (1)
QOF-OQ
U F- (n CY J -- •.-, F- J
OUQZNU
z
mw ?
?-?O. ..
O
J
o J
=
O U
O
Q. U
CC > u
O J
L-
O Ll.
O CL.
O
Z
F-
w W
3
_W
Q
J
a
L-
VI 17 Ma *rl, t nee
u
O
W
a z >
z
j
W I
w
I. ?
,
0
J
m
i (.n
Q
w
a
m
ij-u r
i QU)
Z
0
°
u
0
. z
O
,
F- U
•-,
z / U
w
(n 0 x _ N O
(1) LLJ
;I?
(n
(n W N
U %n U ?
? U
C
`
rTn v
?Q
2 m
co
i
L-ii
F--
U
LLJ
U
J z„
C17 C >
?r
CD
., p
>- -ZQ
°- •
CD Q°
CL
x
Li
F--
cr-
Q
?I Q
,
1
? o
a
. a
Nc DoT R/w
WOODS
s?f
?(` 3 ? $RATICH
m IiZZ PG.
HENRY M, PINTO
-3q.4%/S4--
p R-
' C"Ap NErJ RY ?. ,j7-0
P aa+8 540
113 I •
Q
I •I
i 0
t
?- - ' lo, GR DR,
lit '
?>S ?RoP, 25" IS''CMP
Z'x 3'x G'
I
I • HiGHPO NT 11 t 32
•
III
nq
I?
•
E. O. P lotto
5 9.5 e
MARY CLEVINC-ER
Zib5/1(o
20
I io I
' 2,3?G e
CARL R. ? DEBoRA
K, MENTELE •
Z(, 51 ?-90
r
4
•I 9 I
,
to II
? ?
2 Y.
zi?3?6 I
I:
NC-DoT
194-51500
WOODS
Z
7y
)0 SOIL. DR,?
4? K IS??r:MP ?
RCPIAce -'s
IU
•
3 I
0f
3
N
Q
I
I
I
18
to It
7
to
10
I
5
10
I
oC
P
?POP, So'x I!a"C
IIzz PG.2
FOODS
R
HENRY M. PIN To
3644 / 5415
W0005
R 2Z PG.3
4ET?AESQ?4 MASS . RAPT. ?f?'' 10'GP,DQ. 2 5 - -
TRUSTEE S Zo5V/651 15'GR. DR. FoLSt?MER Oar. R?''?
TyP
? 3o?x 18?_
R F?TEpJD 10'
Zoif IS c r
'
35x IS?GMP ?
r ' I
RE P(A ( I.
ID ASPNAwT Pi,* I
I2
io 4
a
3i
I
I
•
,?EFF ? ?REr??R
r1EDMONO ?
?
I I
1308/ + 4- i
.I I
`Z 3 I IL R
N?cr+PauT •
?
y
v l I ,
PASTURE
Z
I
„a, • 3'62RNcN
?1 \
j
A8Aro0uNE
l ?
CARL R, 0E8044 K , MENTELE
JACNRY M, PINTO
3ro 48 / 540
PROPO seo 5o'x S' CM P
ID Gk DR.
30 Is "c Akp
kftVE Z- -0
SR tizZ j
\oNC MASONRY rot.
SETHESDA MISS. 6APT. c4uRe.8 r4os-r e5
-1 ro nQ .
YX34'
li
E N 0 PRoTEC"r
STA. z5+Z5
i21s
-- -?\
2 1a.
.
0
I ?
m N
77 141
.. \ .1 1206 ' \ . 28 34! ; ? ? a 1
.06
120,
i
\
1 1225
IL
r
\
1161 1208
12,0?\
l
1471 ae 55 sc
120, \ 1? ) 5 1209
N 1 o
4
I
220
\
ice/ e 166• \
.56
?)1 210
12% 003 12116
nw \ .? u70 \ I ?or.on \\
\ .?/ / 1436
1h 1669 1.96 \?y 1461
I r I m9 a \
\ '200 \ I. 1272 1432
(((TTTEEE'''''?))
1204 -1386o
i
~
is J - - -
- J
1271
,?
o\ .
00
\
i
.:11.3 .. ? . I 113E
1m \ 1 1175.
??. ,36 1136 ''30 - 1129 1=5J 3"4
na1 \
'\
o n39
1116 ...
:}
'0 1
\ ,
_
101 1150 \ ' 11 ?
Ir 1_? 1 \ 4 { ,'1)
sc -7 .,o
\ .
'130
\ \•?
5 "30 i .\
.. 1125 \1
^ ?
16 . .
Cr,Y
\
1120 ,P
1123 \ GM.•
I'm 3w
\ 3439
i 126
R 341,
GL \
.01\ /
ila• _
1 r 1_p 1 ?1
/???'N •1, ? .n :..?./ J\/1 ?l ,fli??? 11 I ,
C
E 3437
3649
Iil9 111 \ 1
FOREST 11,8
s 3,152
?
1?39
E'I? I
R 11.9
?
? ?-
111
,.
.Ir.Y Isl
4•. Cn. _ _ .. i
? \
?o
J
lItA
111 3053 -'3 nl
Q.'
i16
y \
2`0 _
LI
a.w ,6 3A" / 34.6
31457
Ina ?,' / .\ .?
4
F
•\ 2-2
3
58
N5A MM
\ \ /
111 I 4 .
/
292
V ?
O,
- .W )AM /).-g
I
/
\
/ 1 - . '
15 3
?....dr11
• -
\
fwAh 1
1110 WIN
••
2"2 .?
.u n. iucullCC W.1
Ho
Lll