HomeMy WebLinkAbout20071841 Ver 6_401 Application_20160216CLearWaLer
ClearWater Environmental Consultants, Inc.
February 4, 2016 www.cwenv.com
Mr. David Brown
US Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, North Carolina 28801
Ms. Karen Higgins
NC Division of Water Quality
512 N. Salisbury Street, Floor 9
Raleigh, North Carolina 27604
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RE: Asheville Airport Runway Rehabilitation, Parallel Taxiway, and
Cargo Hold Expansion — Modification Request
Action ID 2010-00036, DWQ Project #07-1841
Buncombe County, North Carolina
Dear Mr. Brown and Ms. Higgins,
A permit application requesting written authorization for impacts associated with the
Asheville Airport Runway Rehabilitation, Parallel Taxiway, and Cargo Hold Expansion
project was submitted by ClearWater Environmental Consultants, Inc. (CEC), on behalf
of the Greater Asheville Regional Airport Authority (AVL) in June of 2011. The US
Army Corps of Engineers (Corps) issued the requested 404 permit on October 21, 2011
(Attachment A) and the NC Division of Water Resources (DWR) issued the requested
401 Water Quality Certification on October 27, 2011 (Attachment B). The AVL has
finalized detailed plans associated with the runway rehabilitation project and due to
Federal Aviation Administration (FAA) regulations governing the runway safety area
(RSA) additional impacts are required at the southern end of the airport (Figure 1).
Culvert Replacement and Extension - FAA design standards state that RSAs must be
"cleared and graded, and have no potentially hazardous ruts, humps, depressions, or other
surface variations" (AC 150/5300-13A). The length and width of a RSA is determined
by the largest Airplane Design Group (ADG) using the airport. At AVL, ADG C -IV (the
largest group at AVL) requires a RSA length of 1,000 feet and a width of 500 feet (AC
150/5300-13A). Based on these regulations and placement of stormwater drainage
features (discussed further below), the southeastern edge of the RSA is located at the top
of the existing stream bank, which provides no additional high ground surface for tie-in
grading without impacts to the stream channel. As proposed, the tie-in grading at
southeast corner of the RSA crosses the existing culvert and the existing unnamed
32 Clayton Street
Asheville, NC 28801
828-698-9800 Tel
Modification Request
02/04/2016
Page 2 of 3
tributary to the French Broad River. In order to comply with FAA standards, the AVL
would like to request modification of the existing permits to allow for the replacement
and lengthening of the existing culvert which would allow for the RSA grading to tie-in
to the existing ground surface. The existing 40 -foot culvert would be replaced by a 130 -
foot culvert for total new impacts of 90 linear feet (Figure 1, Impact #3). The AVL
proposes to pay into the Anderson Farms Stream Mitigation Bank to mitigate for new
impacts associated with the culvert replacement and lengthening. The AVL is in the
process of reserving credits from the bank and will provide proof of credit availability
upon completion of the reservation process.
Resizing Sediment Basin D - Additionally, the FAA regulations require RSAs to be
"drained by grading or storm sewer to prevent water accumulation" (AC 150/5300-13A).
Stormwater from the RSA would be collected and transported to Sediment Basin D for
treatment. Due to the increased land area needing collection and treatment, Sediment
Basin D would need to be resized. The AVL would like to request modification of the
existing permits to allow for approximately 0.03 acre of linear wetland impact associated
with proposed modifications to Sediment Basin D (Figure 1, Impact #1). The other basin
shown within the RSA is a temporary basin to be used during construction. This basin
would be removed and the area regraded after construction of the RSA is complete. The
AVL is not proposing mitigation for the proposed wetland impact due to the minor nature
of the impact and the overpayment of mitigation for previous projects. The existing
permit required 0.9 acre of wetland mitigation for which 1 acre of wetland credit was
purchased from the NC Ecosystem Enhancement Program (now DMS). Additionally,
0.25 acre of wetland credit was purchased for 0.15 acre of required wetland mitigation
associated with the East Side Improvement project. It is the opinion of AVL and CEC
that additional mitigation for wetland impacts associated with this modification should
not be required.
Stream Stabilization - The unnamed tributary parallel to the southern boundary of the
airport is actively eroding, subject to frequent high flows, and lacks stream features that
would aid in decreasing stream velocity during high flows. Representative photographs
of the stream channel are included for review (Attachment Q. In an effort to protect
airport property and prevent further erosion, the AVL is proposing stream bank
stabilization along a 1,430 -foot reach of the unnamed tributary (Attachment D). The
"upper" reach is approximately 900 linear feet and the "lower" reach is approximately
340 linear feet. Bank treatment in these areas would include bank benching and sloping;
installation of rock steps, constructed riffles, and geolifts; and placement of a stone toe.
Low growing tree and shrub species would be planted on the banks. Due to the presence
of existing utility lines, a stream section between the upper and lower reaches
(approximately 190 linear feet) would not the graded; however, vegetation would still be
planted in this area. The AVL would be managing vegetation to prevent any obstruction
to airport operations; therefore, the AVL would retain the right to trim or cut vegetation
as needed. The AVL would like to request modification of the existing permits to allow
for the bank stabilization discussed above and illustrated in Attachment D.
Modification Request
02/04/2016
Page 3 of 3
In summary, the AVL requests to modify the existing permits as follows:
Activity
Impacts
Stream
Wetland
Culvert Replacement and Lengthening
90 LF
Resizing of Sediment Basin D.
0.03 AC
Stream Stabilization
1,430 LF
Total
1,520 LF
0.03 AC
The applicant respectfully requests that the Corps and DWR modify the previously
permitted project to include the proposed activities described above. Please do not
hesitate to contact me at 828-698-9800 with any questions or comments concerning this
project.
Sincerely,
Rebekah N. Reid
Senior Project Manager
R. C ement Riddre, P.W.S.
Principal
Asheville Airport Runway Rehabilitation, Parallel Taxiway, and Cargo Hold Expansion Modification
Permitted Impacts !-•�
Action ID SAW -2010-00036
DWR Project No. 07-1841
1,796 linear feet of stream q '
0.9 acre of wetlands
Proposed Modification
90 linear feet of stream (culvert replacement)
1,430 linear feet of stream (bank stabilization)
0.03 acre of wetlands
Additional Mitigation Proposed ;
90 linear feet of stream (DMS)
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Unnamed Tributary
to French Broad River
Modificaton Impact #4
Stream Stabilization
90OLF
Temporary Sediment Basin
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Sediment Basin D O
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\, Modificaton Impact #1 ti� Modificaton Impact #3
\� q Fill \�"— Existing Culvert 40LF
0.03 ACProposed Culvert 130LF
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New Impact 90LF
Modificaton Impact #2
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Stream Stabilization
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Drawn by: RNR 01.28.16; Project# 819
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Existing Culvert Stream
Proposed Culvert Linear Wetland
Proposed SW Pipes Wetland Poly
Proposed Contours – – – Airport Property Boundary
Buncombe County, CLearWaLer
Modification Map
North Carolina 32 Clayton Street Figure 1
Asheville, North Carolina 28801
Attachment A
US Army Corps of Engineers 404 Permit
(dated October 21, 2011)
REPLY TO
ATIENPION OF:
DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
151 PATTON AVENUE
ROOM 208
ASHEVILLE, NORTH CAROLINA 28801-5006
October 21, 2011
Regulatory Division
Action ID No.: SAW -2010-00036
Mr. Lew Bleiweis
Asheville Regional Airport Authority
61 Terminal Drive, Suite 1
Fletcher, North Carolina 28732
Dear Mr. Bleiweis:
In accordance with your written request on June 21, 2011 and the ensuing administrative
record, enclosed are two copies of a permit to impact 1,796 linear feet of unnamed tributaries to
the French Broad River and 0.9 acre of wetlands for the rehabilitation of the existing runway and
construction of a cargo facility at the Asheville Regional Airport. The site is near Old Fanning
Bridge Road, off Airport Road/NC Highway 280, Fletcher, Buncombe County, North Carolina.
You should acknowledge that you accept the terms and conditions of the enclosed permit
by signing and dating each copy in the spaces provided ("Permittee" on page 3). Your signature,
as permittee, indicates that, as consideration for the issuance of this permit, you voluntarily
accept and agree to comply with all of the terms and conditions of this permit. All pages of both
copies of the signed permit with drawings should then be returned to this office for final
authorization. A self-addressed envelope is enclosed for your convenience.
Title 33, Part 325.1(f), of the Code of Federal Regulations reads, in part, that, "A $10 fee
will be charged for permit applications when the work is noncommercial in nature and provides
personal benefits that have no connection with a commercial enterprise...", and "A fee of $100
will be charged for permit applications when the planned or ultimate purpose of the project is
commercial or industrial in nature and is in support of operations that charge for the production,
distribution, or sale of goods or services." As your application fits the latter category, you are
requested to remit your check for $100 made payable to the Finance and Accounting Officer,
USAED, Wilmington. The check should accompany the signed and dated copies of your pen -nit.
This correspondence contains an initial proffered permit for the above described activity.
If you object to this decision or the enclosed special conditions you may request that the District
Commander reconsider his decision. Enclosed you will find a Notification of Appeal Process
(NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this decision you
must submit a completed RFA form to the District Commander, Wilmington District Corps of
Engineers at the following address:
- 2 -
Col. Steven A. Baker, District Commander
US Army Corps of Engineers, Wilmington District
69 Darlington Avenue
Wilmington, North Carolina 28403-1343
In order for an RFA to be accepted by the Corps, the Corps must determine that it is
complete; that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been
received by the Division Office within 60 days of the date of the NAP. Should you decide to
submit an RFA form, it must be received at the above address by December 5, 2011.
It is not necessary to submit an RFA form to the Division Office if you do not object to the
decision in contained in this correspondence.
After the permit is authorized in this office, the original copy will be returned to you; the
duplicate copy will be permanently retained in this office. Should you have questions or
comments, please contact Tasha McCormick, Asheville Regulatory Field Office, at
(828) 271-7980 extension 226.
Sincerely,
CX
Scott Jones, W
Chief, Ashevi a Regulatory Field Office
Enclosures
Copy furnished w/encls:
C1earWater Environmental Consultants, Inc.
Mr. Clement Riddle
224 south Grove Street, Suite F
Hendersonville, North Carolina 28792
DEPARTMENT OF THE ARMY PERMIT
Permittee Asheville Regional Airport Authority
Permit No. SAW -2010-00036
Issuing Office CESAW-RG-A
NOTE: The term "you" and its derivatives, as used in this permit, means the permittee or any future transferee. The term "this
office" refers to the appropriate district or division office of the Corps of Engineers having jurisdiction over the permitted
activity or the appropriate official of that office acting under the authority of the commanding officer.
You are authorized to perform work in accordance with the terms and conditions specified below.
Project Description: The permitted is authorized impacts to 1,796 linear feet of unnamed tributaries
to the French Broad River and 0.9 acre of wetlands. These impacts are associated with the
rehabilitation of the existing runway and construction of a cargo facility at the Asheville Regional
Airport.
Project Location: The site is located along Old Fanning Bridge Road, off Airport Road/NC Highway
280, Fletcher, Buncombe County, North Carolina.
Permit Conditions:
General Conditions:
1. The time limit for completing the work authorized ends on December 31, 2016. If you find that you need more time to
complete the authorized activity, submit your request for a time extension to this office for consideration at least one month
before the above date is reached.
2. You must maintain the activity authorized by this permit in good condition and in conformance with the terms and
conditions of this permit. You are not relieved of this requirement if you abandon the permitted activity, although you may
make a good faith transfer to a third party in compliance with General Condition 4 below. Should you wish to cease to
maintain the authorized activity or should you desire to abandon it without a good faith transfer, you must obtain a
modification of this permit from this office, which may require restoration of the area.
3. If you discover any previously unknown historic or archeological remains while accomplishing the activity authorized by
this permit, you must immediately notify this office of what you have. found. We will initiate the Federal and state
coordination required to determine if the remains warrant a recovery effort or if the site is eligible for listing in the National
Register of Historic Places.
ENG FORM 1721, Nov 86 EDITION OF SEP 82 IS OBSOLETE. (33 CFR 325 (Appendix A))
4. If you sell the property associated with this permit, you must obtain the signature of the new owner in the space provided
and forward a copy of the permit to this office to validate the transfer of this authorization.
5. If a conditioned water quality certification has been issued for your project, you must comply with the conditions specified
in the certification as special conditions to this permit. For your convenience, a copy of the certification is attached if it
contains such conditions.
6. You must allow representatives from this office to inspect the authorized activity at any time deemed necessary to ensure
that it is being or has been accomplished in accordance with the terms and conditions of your permit,
Special Conditions:
SEE ATTACHED SPECIAL CONDITIONS
Further Information:
1. Congressional Authorities: You have been authorized to undertake the activity described above pursuant to:
( ) Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C. 403).
(X) Section 404 of the Clean Water Act (33 U.S.C. 1344).
( ) Section 103 of the Marine Protection, Research and Sanctuaries Act of 1972 (33 U.S.C. 1413).
2. Limits of this authorization.
a. This permit does not obviate the need to obtain other Federal, state, or local authorizations required by law.
b. This permit does not grant any property rights or exclusive privileges.
c. This permit does not authorize any injury to the property or rights of others.
d. This permit does not authorize interference with any existing or proposed Federal project.
3. Limits of Federal Liability. In issuing this permit, the Federal Government does not assume any liability for the following:
a. Damages to the permitted project or uses thereof as a result of other permitted or unpermitted activities or from natural
causes.
b. Damages to the permitted project or uses thereof as a result of current or future activities undertaken by or on behalf
of the United States in the public interest.
c. Damages to persons, property, or to other permitted or unpermitted activities or structures caused by the activity
authorized by this permit.
d. Design or construction deficiencies associated with the permitted work.
e. Damage claims associated with any future modification, suspension, or revocation of this permit.
0a
4. Reliance on Applicant's Data: The determination of this office that issuance of this permit is not contrary to the public
interest was made in reliance on the information you provided.
5. Reevaluation of Permit Decision. This office may reevaluate its decision on this permit at any time the circumstances
warrant. Circumstances that could require a reevaluation include, but are not limited to, the following:
a. You fail to comply with the terms and conditions of this permit.
b. The information provided by you in support of your permit application proves to have been false, incomplete, or
inaccurate (See 4 above).
c. Significant new information surfaces which this office did not consider in reaching the original public interest decision.
Such a reevaluation may result in a determination that it is appropriate to use the suspension, modification, and revocation
procedures contained in 33 CFR 325.7 or enforcement procedures such as those contained in 33 CFR 326.4 and 326.5. The
referenced enforcement procedures provide for the issuance of an administrative order requiring you to comply with the terms
and conditions of your permit and for the initiation of legal action where appropriate. You will be required to pay for any
corrective measures ordered by this office, and if you fail to comply with such directive, this office may in certain situations
(such as those specified in 33 CFR 209.170) accomplish the corrective measures by contract or otherwise and bill you for the
cost.
6. Extensions. General condition 1 establishes a time limit for the completion of the activity authorized by this permit, Unless
there are circumstances requiring either a prompt completion of the authorized activity or a reevaluation of the public interest
decision, the Corps will normally give favorable consideration to a request for an extension of this time limit.
Your signature below, as permittee, indicates that you accept and agree to comply with the terms and conditions of this permit.
(PERMITTEE) ASHEVILLE REGIONAL AIRPORT (DATE)
AUTHORITY
This permit becomes effective when the Federal official, designated to act for the Secretary of the Army, has signed below.
(DISTRICT COMMANDER) STEVEN A. BAKER (DATE)
COLONEL
When the structures or work authorized by this permit are still in existence at the time the property is transferred, the terms and
conditions of this permit will continue to be binding on the new owner(s) of the property. To validate the transfer of this
permit and the associated liabilities associated with compliance with its terms and conditions, have the transferee sign and date
below.
(TRANSFEREE)
(DATE)
*U.S. GOVERNMENT PRINTING OFFICE: 1986 - 717425
SPECIAL CONDITIONS
SAW -2010-00036
1. All work authorized by this permit must be performed in strict compliance with the attached
plans, which are a part of this permit. Any modification to these plans must be approved by the
US Army Corps of Engineers (USACE) prior to implementation.
2. Except as authorized by this permit or any USACE approved modification to this permit, no
excavation, fill or mechanized land -clearing activities shall take place at any time in the
construction or maintenance of this project, within waters or wetlands. This permit does not
authorize temporary placement or double handling of excavated or fill material within waters or
wetlands outside the permitted area. This prohibition applies to all borrow and fill activities
connected with this project.
3. Except as specified in the plans attached to this permit, no excavation, fill or mechanized land -
clearing activities shall take place at any time in the construction or maintenance of this project,
in such a manner as to impair normal flows and circulation patterns within waters or wetlands or
to reduce the reach of waters or wetlands.
4. The North Carolina Division of Water Quality has issued a conditioned Water Quality
Certification for your project; the conditions of that certification are hereby incorporated as
special conditions of this permit. For your convenience, a copy of the certification is attached if
it contains such conditions.
5. All mechanized equipment will be regularly inspected and maintained to prevent contamination
of waters and wetlands from fuels, lubricants, hydraulic fluids, or other toxic materials. In the
event of a spill of petroleum products or any other hazardous waste, the permittee shall
immediately report it to the N.C. Division of Water Quality at (919) 733-5083, Ext. 526 or (800)
662-7956 and provisions of the North Carolina Oil Pollution and Hazardous Substances Control
Act will be followed.
6. The permittee shall advise the Corps in writing prior to beginning the work authorized by this
permit and again upon completion of the work authorized by this permit.
7. Unless otherwise authorized by this permit, all fill material placed in waters or wetlands will be
generated from an upland source and will be clean and free of any pollutants except in trace
quantities. Metal products, organic materials (including debris from land clearing activities), or
unsightly debris will not be used.
The permittee shall require its contractors and/or agents to comply with the terms and conditions
of this permit in the construction and maintenance of this project, and shall provide each of its
contractors and/or agents associated with the construction or maintenance of this project with a
copy of this permit. A copy of this permit, including all conditions, shall be available at the
project site during construction and maintenance of this project.
9. The permittee shall employ all sedimentation and erosion control measures necessary to prevent
an increase in sedimentation or turbidity within waters and wetlands outside the permit area.
This shall include, but is not limited to, the immediate installation of silt fencing or similar
appropriate devices around all areas subject to soil disturbance or the movement of earthen fill,
and the immediate stabilization of all disturbed areas. Additionally, the project must remain in
full compliance with all aspects of the Sedimentation Pollution Control Act of 1973 (North
Carolina General Statutes Chapter 113A Article 4).
10. The permittee, upon receipt of a notice of revocation of this permit or upon its expiration before
completion of the work will, without expense to the United States and in such time and manner
as the Secretary of the Army or his authorized representative may direct, restore the water or
wetland to its pre -project. condition.
11. Violations of these conditions or violations of Section 404 of the Clean Water Act or Section 10 of
the Rivers and Harbors Act must be reported in writing to the Wilmington District U.S. Army Corps
of Engineers within 24 hours of the permittee's discovery of the violation.
12. In order to compensate for impacts to 0.9 acre of wetlands and 1,796 linear feet of stream
channel, the permittee shall make payment to the North Carolina Ecosystem Enhancement
Program (NCEEP) in the amount determined by the NCEEP, sufficient to perform the restoration
of 0.9 acres of Riparian Headwater Forest and 1,796 linear feet of cool water stream channel in
the French Broad River Basin, Cataloging Unit 06010105. The permittee will pay into EEP in
phases. Phase 1 will include mitigation for 1,225 linear feet of stream impacts for the cargo area
and associated infrastructure (to take place immediately after permit issuance) and Phase 2 will
include mitigation for 571 linear feet of stream impacts and 0.9 acre of wetland impacts
associated with rehabilitation of the existing runway (estimated to begin in 2013). Prior to
impacts occurring in Phase 2, the permittee will provide an updated acceptance letter to the
Corps. Construction within jurisdictional areas on the property shall begin only after the
permittee has made payment to the NCEEP and provided a copy of the payment documentation
to the Corps, and the NCEEP has provided written confirmation to the Corps that it agrees to
accept responsibility for the mitigation work required, in compliance with the NCEEP In -Lieu
Fee Instrument, approved by the United States Army Corps of Engineers, Wilmington District on
July, 28, 2010.
13. The permittee will maintain the authorized work in good condition and in conformance with the
terms and conditions of this permit. The permittee is not relieved of this requirement if he
abandons the permitted ,activity without having it transferred to a third party.
14. If concrete is used during culvert installation (headwalls), a dry work area must be maintained to
prevent direct contact between curing concrete and stream water. Uncured concrete affects water
quality and is highly toxic to fish and other aquatic organisms.
15. For construction of culverts, measures will be included in the construction that will promote the
safe passage of fish and other aquatic organisms. For all culvert construction activities, the
dimension, pattern, and profile of the stream, (above and below a pipe or culvert), should not be
modified by widening the stream channel or by reducing the depth of the stream. Culvert inverts
- 2 -
will be buried at least one foot below the bed of the stream for culverts greater than 48 inches in
diameter. For culverts 48 inches in diameter or smaller, culverts must be buried below the bed of
the stream to a depth equal to or greater than 20 percent of the diameter of the culvert.
16. If the permittee discovers any previously unknown historic or archeological remains while
accomplishing the authorized work, he will immediately notify the Wilmington District Engineer
who will initiate the required State/Federal coordination.
17. This Department of the Army permit does not obviate the need to obtain other Federal, State, or
local authorizations required by law.
- 3 -
Attachment B
NC Division of Water Resource Water Quality Certification
(dated October 27, 2011)
A��
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor
Director Secretary
October 27, 2011
Mr. Lew Bleiweis, Airport Director
Asheville Regional Airport Authority
61 Terminal Drive, Suite 1
Fletcher, NC 28732
Re: Asheville Airport Runway Rehabilitation Parallel Taxiway and Cargo Hold Expansion (West)
Buncombe County
DWQ #20071841, Ver. 4; USACE Action ID. No. SAW -2010-00036
Ut to French Broad River [040302, 6-(54.5), B]
APPROVAL of 401 Water Quality Certification with Additional Conditions-REVISED4
Dear Mr. Bleiweis:
Attached hereto is a copy of Certification No. 3753 issued to Mr. Lew Bleiweis and Asheville Regional
Airport Authority, dated October 27, 2011. This Certification replaces the Certification issued to you
on October 13, 2011. In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Solid Waste, Sediment and Erosion Control,
Stormwater, Dam Safety, Non -discharge and Water Supply Watershed regulations.
If we can be of further assistance, do not hesitate to contact us.
Sincerely,
C leen H. Sullins
CHS/kah/gym
Attachments: Certificate of Completion
- NCDWQ 401 WQC Summary of Permanent Impacts and Mitigation Requirements
cc: Becky Fox, EPA, 1307 Firefly Road, Whittier, NC 28789
U.S. Army Corps of Engineers, Asheville Regulatory Field Office, Wilmington District, USACOE
Chuck Cranford, DWQ Asheville Regional Office
DLR Asheville Regional Office
File Copy
Clement Riddle, CEC, 224 South Grove Street, Suite f, Hendersonville, NC 28792
Filename: 07184 I Ver4AshevillcAirportRumvayRehabiliiationParal lelTaxiwayAndCargoi luldExpansion_Nest(Bunconmbe)401_IC_I2evised4
Wetlands, Buffers, Stormwater, Compliance and Permitting Unit (WeBSCaPe)
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Phone: 919-807-63001 FAX 919807-6494
Internet: hup:I/porla1mcdem org/weblwq/ws
An Equal Opportunity 1 Affirmative Action Employe,
Mr. Lew Bleiweis and Asheville Regional Airport Authority
Page 2 of 6
October 27, 2011
NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
THIS CERTIFICATION is issued in conformity with the requirements of Section 401 Public Laws 92-
500 and 95-217 of the United States and subject to the North Carolina Division of Water Quality (DWQ)
Regulations in 15 NCAC 21-1, Section .0500 to Mr. Lew Bleiweis and Asheville Regional Airport Authority,
have permission to fill or otherwise impact 0.9 acres of 404/wetland and 1,796 linear feet of stream, to
construct the proposed Asheville Regional Airport expansion, which is located at 61 Terminal Drive, in
Fletcher, Buncombe County, North Carolina, pursuant to an application dated June 8, 2011, and received by
the DWQ on June 14, 2011, and by Public Notice issued by the USACE on June 24, 2011, and received by
the DWQ on June 24, 2011, and by additional information received on August -30, 2011, and September 15,
2011.
The application and supporting documentation provides adequate assurance that the proposed work will
not result in a violation of applicable Water Quality Standards and discharge guidelines. Therefore, the
State of North Carolina certifies that this activity will not violate the applicable portions of Sections 301,
302, 303, 306, 307 of PL 92-500 and PL 95-217 if conducted in accordance with the application, the
supporting documentation, and conditions hereinafter set forth.
This approval is for the purpose and design submitted in the application materials and as described in the
Public Notice. If the project is changed, prior to notification a new application for a new Certification is
required. If the property is sold, the new owner must be given a copy of the Certification and approval
letter and is thereby responsible for complying with all conditions of this Certification. Any new owner
must notify the Division and request the Certification be issued in their name. Should wetland or stream
fill be requested in the future, additional compensatory mitigation may be required as described in 15A
NCAC 2H .0506 (h) (6) and (7). If any plan revisions from the approved site plan result in a change in
stream or wetland impact or an increase in impervious surfaces, the DWQ shall be notified in writing and
a new application for 401 Certification may be required. For this approval to be valid, compliance with
the conditions listed below is required.
Conditions of Certification:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts to
wetlands, streams, and/or buffers, are approved including incidental impacts:
Type of Impact Amount Approved Units Plan_ Location or Reference
404/Wetland 0.9 (acres) Application
Stream 1,796 (linear feet) Application
Sediment and Erosion Control:
2. Erosion and sediment control practices must be in fill] 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,
ope-ated, and maintained in accordance with the most recent version of the North Carolina
Sed: men: and Erosio)i Con. rol Planning and ')esign Manic d.
Mr. Lew Bleiweis and Asheville Regional Airport Authority
Page 3 of 6
October 27, 2011
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 Conlrol Manual. Tile 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. Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
3. 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 404/401 Permit 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;
Sediment and erosion control measures shall not be placed in wetlands or waters without prior
approval from the Division. If placement of sediment and erosion control devices in wetlands and
waters is unavoidable, design and placement of temporary erosion control measures shall not be
conducted in a manner that may result in dis-equilibrium of wetlands or stream beds or banks,
adjacent to or upstream and down stream of the above structures. All sediment and erosion control
devices shall be removed and the natural grade restored within two (2) months of the date that the
Division of Land Resources or locally delegated program has released the project;
5. Protective Fencing - The outside buffer, wetland or water boundary and along the construction
corridor within these boundaries approved under this authorization shall be clearly marked with
orange warning fencing (or similar high visibility material) for the areas that have been approved to
infringe within the buffer, wetland or water prior to any land disturbing activities;
Continuing Compliance:
Mr. Lew Bleiweis and Asheville Regional Airport Authority shall conduct construction activities
in a manner consistent with State water quality standards (including any requirements resulting
from compliance with section 303(d) of the Clean Water Act) and any other appropriate
requirements of State law and federal law. If the Division determines that such standards or laws
are not being met (including the failure to sustain a designated or achieved use) or that State or
federal law is being violated, or that further conditions are necessary to assure compliance, the
Division may reevaluate and modify this Certification to include conditions appropriate to assure
compliance with such standards and requirements in accordance with 15A NCAC 2H.0507(d).
Before modifying the Certification, the Division shall notify Mr. Lew Bleiweis and Asheville
Regional Airport Authority, and the US Army Corps of Engineers, provide public notice in
accordance with 15A NCAC 21-1.0503 and provide opportunity for public hearing in accordance
with 15A NCAC 21-1.0504. Any new or revised conditions shall be provided to Mr. Lew Bleiweis
and Asheville Regional Airport Authority in writing; shall be provided to the United States Army
Corps of Engineers for reference in any Permit issued pursuant to Section 404 of the Clean Water
Act, and shall also become conditions of the 404 Permit for the project;
Miti .,lion:
7. Compensatory Mitigation Using the Ecosystem Enhancement Program (EEP)
Mitigation must be provided for the proposed impacts as specified in the table below. We
understand that you wi;h to make a pays-ent to the Wetlanfas Restoration Fun I administered by
the Nc I . osystem Enhrmce,nent Progran; (FT 11) to meet this mi igation requi erne it. This has
Mr. Lew Bleiweis and Asheville Regional Airport Authority
Page 4 of 6
October 27, 2011
been determined by the DWQ to be a suitable method to meet the mitigation requirement. Until
the EEP receives and clears your check (made payable to: DEN — Ecosystem Enhancement
Program Office), no impacts specified in this Authorization Certificate shall occur. The EEP
should be contacted at (919) 716-1921 if you have any questions concerning payment into a
restoration fund. The mitigation will be phased as shown in the table below:
TVpe of Wetland
Compensatory Mitigation Required
River and Sub -basin Number
Phase #1 — Caro Area
404/Wetlands — riparian
0 (acres)
French Broad/06010105
Stream (perennial)
1,225 (linear feet)
French Broad/06010105
Phase #2 — Parallel
Taxiwa
404/Wetlands — riparian
1.259 [(acres) 0.359 acres was mitigated for
in Version 1, therefore 0.9 acres is required]
French Broad/060 t0105
Stream (perennial)
571 (linear feet)
French Broad/06010105
8. Construction Stormwater Permit NCG010000
Upon the approval of an Erosion and Sedimentation Control Plan issued by the Division of Land
Resources (DLR) or a DLR delegated local erosion and sedimentation control program, an
NPDES General stormwater permit (NCGO10000) administered by DWQ is automatically issued
to the project. This General Permit allows stormwater to be discharged during land disturbing
construction activities as stipulated by conditions in the permit. If your project is covered by this
permit [applicable to construction projects that disturb one (1) or more acres], full compliance
with permit conditions including the sedimentation control plan, self-monitoring, record keeping
and reporting requirements are required. A copy of this permit and monitoring report forms may
be found at: http•//portal ncdenr org/c/document library/Qetfle?uuid=d15e7ee8-cb50-443f-
9dcf 049b001337ac&gr, oupld=38364 ;
9. Culvert Installation
All work in or adjacent to stream waters shall be conducted in a dry work area. Approved BMP
measures from the most current version of NCDOT Construction, and Maintenance Activities manual
(http://www.ncdot.orWdoh/operations/BMP manual/download/BMP Manual.pdf)
such as sandbags, rock berms, cofferdams and other diversion structures shall be used to prevent
excavation in flowing water.
Culverts required for this project shall be installed in such a manner that the original stream profiles
are not altered. Existing stream dimensions (including the cross section dimensions, pattern, and
longitudinal profile) must be maintained above and below locations of each culvert. Culverts shall
be designed and installed to allow for aquatic life movement as well as to prevent head cutting of
the streams. If any of the existing pipes are or become perched, the appropriate stream grade shall
be re-established or, if the pipes installed in a perched manner, the pipes shall be removed and re-
installed correctly.
Culverts) shall not be installed in such a manner that will cause agnradation or erosion of the
stream tip or down stream of the culvert(s). Existing stream dimensions (including the cross section
dimensions, pattern and longitudinal profile) shall be maintained above and below locations of each
culvert.
Placement of culverts and other structures in waters, stri.:ams, and wetland; must be placed below
ilie el, vation of the sire: 3nbed by one foot For all culvers wi''.t a diameter ;reat.:r than 48 inc hes.
Mr. Lew Bleiweis and Asheville Regional Airport Authority
Page 5 of 6
October 27, 2011
and 20 percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow
low flow passage of water and aquatic life. Design and placement of culverts and other structures
including temporary erosion control measures shall not be conducted in a manner that may result in
dis-equilibrium of wetlands or streambeds or banks, adjacent to or upstream and down stream of the
above structures. The applicant is required to provide evidence that the equilibrium shall be
maintained if requested in writing by DWQ.
The establishment of native, woody vegetation and other soft stream bank stabilization techniques
must be used where practicable instead of rip rap or other bank hardening methods. If rip -rap is
necessary, it shall not be placed in the stream bed, unless specifically approved by the Division of
Water Quality.
Installation of culverts in wetlands must ensure continuity of water movement and be designed to
adequately accommodate high water or flood conditions.
Upon completion of the project, the Applicant 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
401/Wetlands Unit of the NC Division of Water Qualityupon completion of the project. Please
send pholographs upstream and downstream of each culvert site to document correct installation
along with the Certificate of Completion form.
10. Deed Notifications
Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands,
waters and protective buffers in order to assure compliance for future wetland, water and buffer
impact. These mechanisms shall be put in place at the time of recording of the property, or of
individual lots, whichever is appropriate. A sample deed notification can be downloaded from
the 401/Wetlands Unit web site at:
http://portal ncdenr orglc/document libra!y/get file?uuid=ef84d0el-5fc9-4183-87b5-
2f9d7eb152e0&Igroupld=38364. The text of the sample deed notification may be modified as
appropriate to suit to this project.
11. Stormwater Management
Before any permanent impervious surface (i.e., building, roadway, taxiway, tarmac or other
similar surface) is installed as part of any phase of the project described in this certification,
the applicant must meet all of the following:
The Stormwater Management Plan (SMP) must be approved in writing by the City of
Asheville. A copy of the approval letter and approved SMP must be submitted to the
Division prior to installation of any impervious surface within the project site. If the
project is phased, then the approved SMP for each phase must be submitted to the
Division prior to installation of any impervious surfaces associated with that phase.
The approved stormwater best management practices (BMPs) must be constructed and
operational before any permanent bui ding or other structure is occupied or becomes
operational. if the project is phased, then the approved BMPs for each future phase must
be constructed and operational before any permanent building or other structure
associated with that phase is occupied or becomes operational.
The approved SMP, phased or otherwise, as well as drainage patterns must be maintained
in perpetuity.
Mr. Lew Bleiweis and Asheville Regional Airport Authority
Page 6 of 6
October 27, 2011
The SMP may not be modified without prior written authorization frau the SMP
approval authority.
12. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable
Buffer Rules, and any subsequent modifications, the applicant is required to return the attached
certificate of completion to the Wetlands, Buffers, Stormwater, Compliance and Permitting Unit
(WeBSCaPe), North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC,
27699-1650.
Also, this approval to proceed with your proposed impacts or to conduct impacts to waters as
depicted in your application shall expire upon expiration of the 404 or CAMA Permit.
If this Certification is unacceptable to you, you have the right to an adjudicatory hearing upon written
request within sixty (60) days following receipt of this Certification. This request must be in the form of a
written petition conforming to Chapter 150B of the North Carolina General Statutes and filed with the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. if
modifications are made to an original Certification, you have the right to an adjudicatory hearing on the
modifications upon written request within sixty (60) days following receipt of the Certification. Unless
such demands are made, this Certification shall be final and binding.
This the 27'h dayof Otobe
DIVO
IT
Y
4
Coleen H. Sullins
3753
CHS/kah/jm
Aji=
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee SecretaFreemary
Governor Director
North Carolina Division of Water Quality
401 Water Quality Certification
Summary of Permitted Impacts and Mitigation Requirements
In accordance with 15A NCAC 2H.0500, Mr. Lew Bleiweis and Asheville Regional Airport Authority, have
permission to fill or otherwise impact 0.9 acres of 404/wetland and 1,796 linear feet of stream, to construct the
proposed Asheville Regional Airport expansion, which is located at 61 Terminal Drive, in Fletcher, Buncombe
County, North Carolina. All activities associated with these authorized impacts must be conducted with the
conditions listed in the attached Permit transmittal letter. THIS CERTIFICATION IS NOT VALID WITHOUT
THE ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENTS, ECOSYSTEM ENHANCEMENT PROGRAM
DWQ PROJECT #: 20071841, Ver. 4
NC EEP NAME: Asheville Airport Expansion
LOCATION: Asheville
COUNTY: Buncombe
BASIN/ SUB BASIN: French Broad/06010105
As required by 15A NCAC 2H.0500, and the conditions of this Certification, you are required to compensate for
the above mitigable impacts through the restoration, creation, enhancement or preservation of wetlands, surface
waters and riparian buffers as outlined below prior to conducting any activities that impact or degrade the waters of
the state.
Note: Acreage requirements proposed to be mitigated through the Ecosystem Enhancement Program must be
rounded to one-quarter acre increments and linear foot requirements must be rounded up" to the nearest
foot according to 15 2R.0503(b).
Impacts
Mitigation
0.9 Acres Riparian Wetlands
1.259 Acres Riparian Wetlands (0.359 acres were
mitigated for in Version 1, therefore 0.9 acres is
required)
1,796 Linear Feet of Stream
1,796 Linear Feet of Stream
One of the options you have available to satisfy the compensatory mitigation requirement is through the payment of
a fee to the Wetlands Restoration Fund per NCAC 2R.0503. if you choose this option, please sign this form and
mail the form along with a copy of your 401 Certification or Buffer Approval to the Ecosystem Enhancement
Program at the address below. An invoice for the appropriate amount of payment will be sent to you upon receipt
of this form. PLEASE NOTE, THE ABOVE IMPACTS ARE NOT AUTHORIZED UNTIL YOU RECEIVE
NOTIFICATION THAT YOUR PAYMENT HAS BEEN PROCESSED BY THE ECOSYTEM' ENHANCMENT
PROGRAM.
Signature
Date
ECOSYSTEM ENHANCEMENT PROGRAM
1652 Mail Service Center
RALEIGH, N.C. 27699-1652
(919) 715-2219
rilenaIII c:
071841 Ver4AsheviIleAirportRumvayRehabititntion ParallelTaxiwayAndl'nrgoF1oldGxpansion_West(Buncombe)40I IC—L F 11
_-Revised2
Wetlands, Butters, Slonnwater, Compliance and Permitting Unit (WeBSCaPe)
1650 Mail Service Center, Raleigh, North Carolina 77699-1650
Phone 919-807-63011 FAX: 919-807-6494
Internet. http:l/poilaLncdenr.org/weblwglws
An Fgwl Opporlunity 1 Affirmative Aclion Employer
Attachment C
Representative Photograph
r
e�
! '� `
•u'�1'�Y
Attachment D
Stream Stabilization Plans
d t f� A'ville aunt. rech � •., ,� OSP a j.—i Hlu
Acton r . WpP •a�" S
�tk. Af ���:. Y _Me0•I Rp^.Comm '��FAr } t,
74 `�• "�"� VillarA
e°•f S ■
and ® '�.wNc a ®: i
Hill to Farmws ovv
4A
fipmsny '�� MorkH Biltmore N(�—/��� �o �
�' j,l House■ �:.�/ '.r y Reynolds
112; Cc- s wBusbee
Res.
vlU��o Biltmore o0 �. *
s ailrmore Forest i
YO �� O
PISGAH 191ti
AEstafe a Branch
f.NT }`
"o Valley ;
eo. Springs ,
'�
sI 5A
NAT'L rrCf
,oA, o ~ o
oro 116® Lake �oMcoRa _A
a s RD=1� k land
'-
f
O ;
West Heave Julian c>
Avery Cr� e o /� TtRRA c o
Ppy P 6,�°• P;
}o Pp�o'.E Arden
P —
4
FOREST ?
CO. Oa ark rE /•i.
Fti� `SO
RN _elfSCO.
aj / �• I k g:on 1 t r \, 4a :M
\}. •�./ A•ptpGE / �`, ANoC'A}Oc Ro. etchefR
! 'Po - How's
As' PROJECT SITE 011; �-�� •°
Vicinity Map
Not to Scale
BEFORE YOU DIG!
CALL 1-800-632-4949
N.C. ONE -CALL CENTER
IT'S THE LAW!
Stream Stabilization
Buncombe County, North Carolina
FINAL FOR
CONSTRUCTION PLANS
ISSUED FEBRUARY 02, 2016
Sheet Index
Title Sheet
0.1
Quantity Estimates and Symbols
0.2
Project Overview
0.3
Typical Sections
1.1
Cross Sections
1.2-1.3
Stream Plan & Profile
2.1-2.4
Details
3.1-3.2
Project Directory
Engineering:
Wildlands Engineering, Inc
License No. F-0831
167-B Haywood Rd
Asheville, NC 28806
Jake McLean, PE, CFM
828-774-5547
Owner:
Asheville Regional Airport
Z
Quantities
Upper Reach Lower Reach
fTEM
UPPER QTY
UNIT
Mob, 1, zati on
1
LS
Survey La out
1
LS
Construction Entrance
50
LF
Herbic-:' de Treatment
125
STEM
Grading
1
LS
Mi sc. Class A Stone
20
TON
Mi sc. Class B Stone
20
TON
Misc. Class 1 Stone (Stone Toe)
230
TON
Rock Step
7
EA
Constructed Riffles (Class I Mix)
302
LF
Geolifts
460
LF
Water Diversion
1
LS
Erosion Control (Coir) Malting
1820
SY
Si It Fence
1200
LF
Temporary Seed! ng
5382
SY
Permanent Seedi ng, Riparian Buffer
1593
SY
Permanent Seeding, Stabilization Mlx
3789
SY
Li ,e St. kes
870
STEM
Bare Root Seed Iings
700
EA
Existing Features
Existing Property Line
REM
LOWER QTY
UNIT
Mobilization
1
LS
Survey Layout
1
LS
Construction Entrance
0
LF
Herbicide Treatment
175
STEM
Grading
1
LS
Misc. Class AStone
20
TON
Misc. Class B Stone
20
TON
Misc.Class I Stone(Stone7oe)
100
TON
Rock Step
5
EA
Constructed Riffles (Class I Mix)
153
LF
Geolifts
250
LF
Water Diversion
1
LS
Erosion Control (Coir) Matting
610
SY
Silt Fence
744
LF
Temporary Seedirg
1960
SY
Permanent Seedirg, Riparian Buffer
467
SY
Permanent Seeding, Stabilization Mix
1493
SY
Live Stakes
676
STEM
Bare Root Seedl l ngs
450
EA
— Right of Way
-- 100 Existing Major Contour (5' Interval).
(contour labels not shown on overview sheets)
Existing Minor Contour
(contour labels may be shown in flatter areas)
--- Te ----- TB --- Existing Top of Terrace
Existing Overhead Electric
Existing Thalweg Alignment
Existing Fence
Existing Power Pole
Existing Water Line
Existing Gas Line
Existing Sewer Line
Existing Utilities
Work Associated With
Culvert Installation
ITEM
QTY
UNR
Mobilization
1
LS
Existing Culvertand Headwall Removal
1
LS
Channel Grading (Approx. 20fUpstream and
Culvert)Downstream of Culvert)
1
LS
MiscClass 1Stone(Stone Tuel
10
TUN
Culvertand Headwall Construction(includes
3ackfill and Grading)
I
LS
Culvert and Headwall Design
I
LS
Grading Cut and Fill Estimates
Reach Cut (Soil Export)
(cu. Yds)
Upper
3,100
Lower
950
Total
4,050
Proposed Features
10.00
--� - Proposed Centerline Alignment
--0 Proposed Top of Terrace With Existing Grade Tie-in Circle
B B Proposed Back of Bench
— — — Proposed Front of Bench
Proposed Rock Step
(see Detail 1/3.1)
0000000 Proposed Stone Toe
0 00n(see Detail 2/3.1)
Proposed Constructed Riffle
(see Detail 3/3.1)
Proposed Geolift
(see Detail 4/3.1)
Proposed Ramp to Access Stream Bench
tD
mss,„rrnpr ~
O
Ila
Ls rho
ti �N
eeVVV
O
1.2
Za�ego
Fill (Soil Import)
Net
� j $-;,1 ^mZ.
(cu. Yds)
(cu. Yds)
Z _ - m $ v
ai;md-.
1,400
1,700 cut
: z Q LL E
J
75
875 cut
1,475
2,575 cut
tD
mss,„rrnpr ~
O
Ila
Ls rho
ti �N
eeVVV
O
1.2
PROPOSED TOP OF TERRRACE
PROPOSED BACK OF
BENCH
EXISTING GATE, rr<vry i yr t�trv�n
CONSTRUCTION
ACCESS POINT
1'
20+00
0
GRADE MOWING
ACCESS
START OF PROJECT,
"UPPER" REACH
STATION 20+61'
„gym
,rads
NOO
� N
�V
PRO�E
i
i sl
/ l• /ate .
tea••• �"\" •'I.
FENCE TO BE
REMOVED \
N.
N.
cs
• �.
EXISTING ti �� - mss•` ,`� \
�,.. �` ,•�e �
��•-A".. � WHERE NOT GRADINGFNCh � � ... � � -c\�` .� _' • • �, Z •=!
TERRACE (TYP) VFR �., „g � ,,,' ` •... cb ,
FENCE TO BE��• `
`�•
REMOVED ,
CULVERT BID ITEM
SEE SECTIONS SHEETS _ SEE QUANTITY ?.
_1 1.2-1.3 FOR BANK AND ESTIMATES AND
BED TREATMENTS (TYP) SYMBOLS (SHEET
0.2) FOR DETAILS
00 00 ♦ •
.•'0IAI
00 0010 00 00 00 00
GRADE
ACCES
� UTILITY POLE TO BE
RELOCATED
j�/• � VEG. MGMT. ZONED�6)o
END
"UPPER"
REACH
PROPOSED STORM PIPE �, v 0 , �J
SYSTEM AND RUNWAY 1A
GRADING (5i -CONTOURS) �
NO GRADING TO BE CONDUCTED FROM
STATION 29+65' TO STATION 31+50'
VEGETATION MGMT. ZONES STILL APPLY �
r ♦
�
a' 100 ♦
so' 150
/l
yNAVIGATION
AND UTILITIES
TO BE
RELOCATED
REACH
RESUME BANK
AND TERRACE
GRADING
1 11
1,00
0
END OF PROJECT '•, \
STATION 34+91'
zsry�mLL
z
umd
y?�Q�LLe
END OF PROJECT '•, \
STATION 34+91'
zsry�mLL
z
umd
y?�Q�LLe
VEGETATION MANAGEMENT ZONES:
A. REGRADED BANKS (RIGHT OR LEFT SIDE OF STREAM) - PLANT STABILIZATION
SEEDING 5/3.2, AND LOW GROWING TREES AND SHRUBS PER PLANTING
SCHEDULE 6/3.2 (MOWED AND MAINTAINED AS NECESSARY)
B. MOW ZONE: PLANTED RIPARIAN SEEDING, 4/3.2
C. LIVESTAKE WITH LOW GROWING SPECIES PER 9/3.2, APPLY RIPARIAN SEEDING
C2. LIVESTAKES ONLY WHEN STONE TOE IS APPLIED
D. IDENTIFY, CUT AND TREAT WITH HERBICIDE TALL TREE SPECIES, PLANT LOW
GROWING TREES AND SHRUBS PER PLANTING SCHEDULE 6/3.2
EXISTING GRADE]
PROPOSED EROSI
CONTROL MATTI
PROPOSED GR
ABOVE CULVE
PROPOSED STREAM
GRADE AT ENTRANCE OF
CULVERTS
PROPOSED DOUBLE CULVERT
INVERTS TO BE BURIED 1' BELOW
PROPOSED STREAM GRADE
EXISTING GRADE
Culvert Section Upstream of Existing Culvert (looking downstream)
SCALE 1" =10'
EXISTING STREAM GRADEEXISTING GRADE
AT EXIT OF CULVERTS OVER EXISTING CULVERTS
------------
PROPOSED STREAM
GRADE AT EXIT OF PROPOSED DOUBLE CULVERT
CULVERTS INVERTS TO BE BURIED 1' BELOW
PROPOSED STREAM GRADE
Culvert Section at Existing Culvert (looking downstream)
SCALE 1" =10'
EXISTING GRADE
PROPOSED TOP OF
VEGETATION MANAGEMENT ZONES
0' 5' 10' 1.
VARIES. GRADED AT
2:1 SLOPE UNTIL TIE IN 18.00'
WITH EXISTING GRADE (MIN 16.00')
--------------------------
PROPOSED
------------ -
PROPOSED GRADE
PROPOSED BACK OF BENCH PROPOSED BANKFULL
(FRONT OF BENCH)
A B
VEGETATION MANAGEMENT ZONES
Typical Section: Riffle (looking downstream)
SCALE 1" =10't STA 20+10'
,VARIES.'GRADED AT
Typical Section: Step/Structure Pool (looking downstream)
SCALE 1" =10't
PROPOSED ti
VARIES
ACCORDING
TO PLANS
SEE PLAN VIEW FOR AREAS
WHERE RIGHT BANK
GRADING IS PROPOSED
(VEG MGMT ZONE A)
OTHERWISE, NO GRADING
RIGHT BANK (ZONE D)
u
FOR CHANNEL BANKS,
SEE TREATMENT BASED ON PLAN VIEW NOTES
AND CROSS SECTION SHEETS 2.2-2.3
(SAME FOR POOL)
BOTTOM WIDTH MAY VARY V-2'
DEPENDING ON TIE-IN
WITH RIGHT BANK
SEE PLAN VIEW FOR AREAS
WHERE RIGHT BANK
GRADING IS PROPOSED
(VEG MGMT ZONE A)
OTHERWISE, NO GRADING
RIGHT BANK (ZONE D)
POOL DEPTH AS DEEP AS EXISTING, UP TO 6.0' MAX,
ARMOR WITH CLASS I STONE WHEN EXISTING DEEPER
THAN 6.0' AND FILL IS PLACED BELOW
(^
y 9 b T
zZ=��ms
W O ^fV G
AL W ayrym
umd••
.aZ6Q�"�E
�W LL
3
0
I
2095
Cross Section X1 (looking downstream) 2090
SCALE 1" = 10• STA 21+65'
2085
2080
2075
2070
2085
APPLY COIR EROSION
0+00
2090
2080
Cross Section X3 (looking downstream)
CONTROL MATTING ALL
2075
=10' STA 25+65'
Legend
— — — — — GRADED TERRACE SLOPES
— —
I I I
Compacted soil backfill
Geolifts on Class 1 Stone Base 2055
2085
Detail 4/3.1
2080
Geolifts on Weathered Bedrock 2080
Detail 4/3.1
s
Riffle Material 2055
Detail 3/3.1 0+00
\
/
Detail 2/3.1
2oea
\
/ EXISTING GRADE,
\
NO RIGHT BANK
PROPOSED/
2075
V
GRADING
GRADE \
/
GRADE FROM EXISTING TOE,
ADJUST TYPICAL TO EXISTING
207C
APPLY MATTING TO BANK
BOTTOM WIDTH OR INSTALL
o
STONE TOE WHERE DIRECTED
208!
0+00
2085
Cross Section X2 (looking downstream)
SCALE 1" =10' STA 23+75' 2080
2075
2070
2085
2080
2055
PROPOSED \
GRADE
COMPACTED FILL
IN 12" MAX LIFTS
PROPOSED
TOP OF
TERRACE
PROPOSED
GRADE
GEOLIFT ON
STONE BASE
0+50
0+50
GEOLIFT ON
STONE BASE
RIFFLE — — — — — —
MATERIAL
i
EXISTING
i GRADE
STONE TOE
SEE PROFILE, SHEET 2.1, FOR CLARIFICATION
OF FILL IN RIFFLES AND POOLS
RIFFLE — —
MATERIAL
2•
1+00
U
2085
0+00
2080
Cross Section X3 (looking downstream)
SCALE 1"
2075
=10' STA 25+65'
Legend
2070
I I I
Compacted soil backfill
Geolifts on Class 1 Stone Base 2055
U
Detail 4/3.1
2080
Geolifts on Weathered Bedrock 2080
Detail 4/3.1
s
Riffle Material 2055
Detail 3/3.1 0+00
Stone Toe
Detail 2/3.1
PROPOSED \
GRADE
COMPACTED FILL
IN 12" MAX LIFTS
PROPOSED
TOP OF
TERRACE
PROPOSED
GRADE
GEOLIFT ON
STONE BASE
0+50
0+50
GEOLIFT ON
STONE BASE
RIFFLE — — — — — —
MATERIAL
i
EXISTING
i GRADE
STONE TOE
SEE PROFILE, SHEET 2.1, FOR CLARIFICATION
OF FILL IN RIFFLES AND POOLS
RIFFLE — —
MATERIAL
2•
1+00
U
2085
Z
0
U
2080
Q)
0
2075
�y
V
u
o
N
2070
' •''
0
Cj
0.
0
U
2085
0
4r
.,
2050
Q)
2055
�
1+00
Gn
2080
EXISTING
_ GRADE 2075
2070
2085
0
i
STONE TOE IN FILL OR 2080
COMPACTED FILL TO COIR WHEN IN CUT ONLY s < 3
CREATE BANKFULL BENCH r N
2055 J
0+50 1+00 8 l�
E
E
0' 5' 10' 15' c Rd
2075
2070
2065
0' 2' 4' 6'
2060 }
20+00
STA = 20+60.89
ELEV = 2072.20
STA 20+61'
BEGIN PROJECT
PROPOSED PROFILE
ELEVATIONS ARE APPROXIMATE,
ENGINEER TO FIELD VERIFY
20+50 21+00
I` _ _ — _ c% _ — __— _— 0 _ — __ _ _ _ J—
- LEFT BANK: GRADE TYPICAL RIFFLE SIDE
SLOPE AT EXISTING LEFT TOE AND INSTALL
EROSION CONTROL MATTING PER DETAIL
PROPOSED TOP OF
TERRACE (TYP)
t
1
EXISTING GATE/
CONSTRUCTION _41
ACCESS
PROPOSED4
EXISTING GROUND J
ALONG PROPOSED 4
(APPROXIMATE)
START PROJECT, MATCH
EXISTING GRADES 20+61'
TO 23+40'
21+50 22+00
20+60't START GEOLIFT
CONSTRUCTION ON LEFT
BANK AND STONE TOE ON
RIGHT BANK, CONTINUE
TO END OF UPPER REACH
tri
i
n o
IT
PROPOSED --
GROUND ALONG
PROPOSEDE
2.5'
----------------- --------------- , MIN
STA = 22+61.26 —
ELEV = 2071.29 \
STA = 23+01.71
ELEV = 2071.02
22+50
RIFFLE
STONE TO 2'
DEPTH (TYP)
I
COMPACTED
QId>
BACKFILL EXISTING,
INVERT
CLASS 1 ARMORING OF POOL, POOL 4'
BELOW HEAD OF DOWNSTREAM RIFFLE
23+00
0 — — - REMOVE LARGE -�
BOULDERS FROM BANK
i /
0 J ..-0
f
0
23+50
24+00
STRUCTURE HEADER
AND FOOTER — — 2°75
a'
a �
2070
4'
MAX
I
2.t
m
TYPICAL CHANNEL BACKFILL AND
GRADE CONTROL SHOWN IN THIS
AREA FOR CLARIFICATION PURPOSES
11-
+ 2060
24+50 25+00
PROTECT EXISTING
'SANITARY SEWER
\�t AND MANHOLE
MAINTAIN MIN. 15' CLEAR,
ON OBSTRUCTIONS TO M
FROM TOP OF PROPOSE[
TERRACE. NARROW BEN
FROM 18' TO 16' AT STA 2
:E
ING
H WIDTH 4
70'
gig B
oo60000104 z4.Qz��
_-• ffi OSCE wn/1Q0
• - r
2085..._. ._. __ _ •••• 1�—� —i ` , , I '4 -----81----- —
SSC v
STREAM BENCH, 1500
RAMP ACCESS 0 �iiu�•����•1 -� a+_sos� zz+
v7O
WIDTH -�� :•'�•�� x - - -eL' 1\ ��\ �� I
! ■������p�p���', X91\ v� j\a
K.�
START OF o S�
PROJECT 20+61'a�
UPPER REACH i '�' ' '„_�� fEXISTING
t - - 2+00
_--- --� -
s�
1
PRESERVE EXISTING RIPRAP AND ALDERS GRADING TIE-IN
AND LAY TERRACE SLOPE BACK AT 2:1
WHERE ERODING �� (TYP)
NO RIGHT TOE TREATMENT,
EXCEPT AS DIRECTED IN
FIELD 20+60 TO 22+60
w w
w w
_ _
cf) U)
0' 4' 6'
2070 -
2065 -
STA = 24.
ELEV = 2C
2060 -
2055
24+75
PROPOSED PROFILE
\O
i
O
N
ELEVATIONS ARE APPROXIMATE,
?ped
boNdy �
2060
APPROXIMATE LOCATION OF REMOVE
ENGINEER TO FIELD VERIFY
PROPOSED
PROPOSED DOUBLE CULVERT EXISTING
GROUND ALONG
o
DESIGN BY OTHERS CULVERTS
PROPOSEDti
1W
_
< w
'91
6.15
7 STA = 25+12.76
r
I
n
ELEV = 2065.37
an
ry n
W
i
i 1
' `
W
`--------
= ------
1
EXISTING GROUND
,----------------, \�-------------
\`-----------
------------�
\�.
ALONG PROPOSED t
(APPROXIMATE) STA
an
162062.33
PROPOSED DOUBLE CULVERT
no �un
INVERTS TO BE BURIED 1' BELOW
on
•�
\='
PROPOSED STREAM GRADE
25+00
25+50
rJ /
PROPOSED TOP OF.
TERRACE (TYP)
i
PROPOSEDE
i
0
7
I
I
Tr
26+00
28+50
27+00
27+50
FENCE TO BE RELOCATED _--
yAli
D
RAMP ACCESS TO
STREAM BENCH, 15'
WIDTH
B ■'
B --� ----- --- _ - ft�L
24+00 `� ' ' 26.000, 0. -t v.'0O�O,VLo-'4 , , 4��, f��n
�fl1==_--81• .. n1r�O+QOi `O v .O 1` 81-----BL-----EL----,-
aL
CULVERT BID ITEM. SEE QUANTITY ESTIMATES
<'. N EXISTING AND SYMBOLS (SHEET 0.2) FOR BID DETAILS
r
ryyN ysN
90' OF PROPOSED NEW IMPACTS (40' OF
EXISTING PIPE AND 130' OF PROPOSED PIPE)
1 r�
28+00
UTILITY POLE TO BE
RELOCATED
"000-
- RUNWAY DRAINAGE
! BY OTHERS
28+50
29+00
2070
Q
zZ�g
a
�2 CE
�� LL
3
2065
\O
i
O
N
yAli
D
RAMP ACCESS TO
STREAM BENCH, 15'
WIDTH
B ■'
B --� ----- --- _ - ft�L
24+00 `� ' ' 26.000, 0. -t v.'0O�O,VLo-'4 , , 4��, f��n
�fl1==_--81• .. n1r�O+QOi `O v .O 1` 81-----BL-----EL----,-
aL
CULVERT BID ITEM. SEE QUANTITY ESTIMATES
<'. N EXISTING AND SYMBOLS (SHEET 0.2) FOR BID DETAILS
r
ryyN ysN
90' OF PROPOSED NEW IMPACTS (40' OF
EXISTING PIPE AND 130' OF PROPOSED PIPE)
1 r�
28+00
UTILITY POLE TO BE
RELOCATED
"000-
- RUNWAY DRAINAGE
! BY OTHERS
28+50
29+00
2070
Q
zZ�g
a
�2 CE
�� LL
3
2065
2055
29+50
0' 20' 40' 60'
gIRpORTRO ,\
Oyw-
280)
\O
O
N
?ped
boNdy �
2060
2055
29+50
0' 20' 40' 60'
gIRpORTRO ,\
Oyw-
280)
2085
2060
2055
2050
28+75
0' 2' 4' 6'
g
`
o
N
PROPOSED PROFILE
ELEVATIONS ARE APPROXIMATE,
ENGINEER TO FIELD VERIFY
$
TIE-IN TO
EXISTING
GRADE 29+65't
-- -- w " ;
LOWER REACH: 31+50
r
< >
LOWER REACH: START
BANK GRADING LEFT
BANK ONLY
0
`�.
TO 32+38 PROFILE
� >
______ ,
WORK ONLY
PROPOSED
GROUND
ALONG
`��'�
=-----------------------------------
-----
PROPOSED
rc
�______________ _____
_-
___ �._______
.0%
EXISTING GROUND
'
ALONG PROPOSED iEXCAVATE
POOLS IN LOWER REACH
-
`-------------- -----------------
--------------(APPROXIMATE)
(APPROXIMATE)
TO BEDROCK OR 2.5' BELOW HEAD OF
DOWNSTREAM RIFFLE
29+00
N' CO.
N
N r
�r
Zp_--
29+50
30+00 30+50
31+00
- UTILITIES TO BE
.RELOCATED
31+50 32+00 32+50 33+00 33+50
0' 20' 40' 60'
�wmmHiw
N
H
W
w
N
W
uj
EXISTINGNO STREAM OR BANK
WORK STATION 29+65'
TO 31+50' BEGIN LOWER REACH,
START LEFT BANK _
30+00 GRADING AT STA 32+38'
O
OOn _
000^ _ �_ _ _ _ - — �B
9i st
VOO y 8
33*00
Y
NO DISTURBANCE TO ''sr
RUNWAY STORM ' '� RIGHT TERRACE
DRAINAGE BY �t PROPOSED 4. (TYP) 'J SLOPE ABOVE
OTHERS J r 1 `i �f BANKFULL
z
z
2
v
w
O
0' 2' 4' 6'
f�•rr.�u
33+25 33+50
34+00
34-50
35+50
36+00
36+50
2060 In
z o o' 4
__ �N
im=
Qzm�$d
IE
�J LL
2055
2050
2045
36+75
0' 20' 40' 60'
V�; r
no
GRADING TIE-IN
QOl?O END LOWER REACH
PROPOSED TOP / AND PROJECT t
OF TERRACE (TYP) //� //� >/i STATION 34+91'
ELL`
cl,// -/ �� V
cam•+ ,(� ,, / . " / � -'" _ - - g1.'I
_36+00 ELL
— r
PROPOSED (TYP)
/
0000*
/
i v ��� • �y }) r>
00000
,/ nit,
EXISTING 4 _
RU
NWAY STO RM
DRAINAGE, BY
G �/ �.e� •r 33� ,' /aim ��'�; ? -- �/ OTHERS
NO DISTURBANCE TO
RIGHT TERRACE SLOPE
ABOVE BANKFULL
0
0
o
O
rho oyd � �r
"
PROPOSED
PROFILE
ELEVATIONS
ARE APPROXIMATE,
W
c
a
ENGINEER
TO FIELD VERIFY
2055
•— : ?
END PROJECT,
MATCH EXISTING
GRADE
--------------------
-\--
`I
1
1
1
A
II
/ 1
2050
-_
1
1
I \
/ \
1
EXCAVATE POOLS IN LOWER ' -
----------- ---- --
/ \
-------------- = \�
REACH TO BEDROCK OR 2.5'
BELOW HEAD OF
[EXISTING
DOWNSTREAM RIFFLE
GROUND
ALONG PROPOSED f
(APPROXIMATE)
2645
33+25 33+50
34+00
34-50
35+50
36+00
36+50
2060 In
z o o' 4
__ �N
im=
Qzm�$d
IE
�J LL
2055
2050
2045
36+75
0' 20' 40' 60'
V�; r
no
GRADING TIE-IN
QOl?O END LOWER REACH
PROPOSED TOP / AND PROJECT t
OF TERRACE (TYP) //� //� >/i STATION 34+91'
ELL`
cl,// -/ �� V
cam•+ ,(� ,, / . " / � -'" _ - - g1.'I
_36+00 ELL
— r
PROPOSED (TYP)
/
0000*
/
i v ��� • �y }) r>
00000
,/ nit,
EXISTING 4 _
RU
NWAY STO RM
DRAINAGE, BY
G �/ �.e� •r 33� ,' /aim ��'�; ? -- �/ OTHERS
NO DISTURBANCE TO
RIGHT TERRACE SLOPE
ABOVE BANKFULL
0
0
o
O
rho oyd � �r
fl
ELEVATION POINT VARIES BY BACKFILL EQUAL
STEP ARRANGEMENT RIFFLE MIX FROM PROJECT
PROFILE FOR ELEVATION RIFFLE TABLE
HORSE SHOE SHAPED i
ASEEi
A'
ARCHED
ANGLED
THALWEG ON UPSTREAM 1/3 OF ANGLED
STEP (SIMILAR TO SINGLE ARM VANE)
IRREGULAR
DOUBLE THALWEG OR
VARIABLE THALWEG
PLACEMENT
Types of Step
Configurations
HEAD OF RIFFLE ELEVATIO
POINT PER PROFIL
RIFFLE VENEER
Profile A -A'
MAY BE HORSE SHOE
SHAPED, ARCHED, ANGLED
FLOW ORIRREGULAR,
CONTRACTOR TO VARY. IN
OUTSIDE OF BEND,
ANGLED WITH SLOPING
ARM IS TYPICALLY
REQUIRED AS SHOWN IN HEADER
LOG STEP DETAIL SECTION
A -A'. FOOTER BOt
A'
( I
( POOL WIDEN BOTTOM
\ I WIDTHTOTYPICAL
STRUCTURE POOL
\ DIMENSION
Plan View
Rock Ste
3.t Not to Scale
SFF PRDFII F
FILTER FABRIC
Section B -B'
CONTINUE
BOULDERS 2'
INTO BANK
= BOTTOM WIDTH (TYPICAL SECTIONS) //-(HEADERS AND
to / FOOTERS),
to n / BOTH SIDES
NONWOVEN/
FILTER FABRIC
HEADER BOULDER
FOOTER BOULDER
Section View (Section A -A')
Plan View
B
RIFFLE VENEER: 24" CLASS 1 STONE
MIX WITH ONSITE
COBBLE/GRAVEL AND SAND TO FILL VOIDS
F RIFFLE ELEVATION
PER PROFILE
INVERT PER PROFILE
CKFILL DEPTH
' MINIMUM
�HEREAP-,_._,SEECETA'L
OF BANK (TVP)
END STONE TOE EXISTING GROUND
Section B -B'
RIGHT AND LEFT EDGE OF CHANNEL
HIGHER THAN INVERT
42) Constructed Riffle
3.1 Not to Scale
EXISTING GROUND \
BANKFULL BENCH
PROPOSED GROUND
I . SEE PLANS FOR LOCATIONS WHERE DETAIL APPUES.
2. EXTEND STONE TO ORIGINAL CHANNEL BOTTOM EXCEPT
WHERE ORIGINAL CHANNEL BOTTOM IS GREATER THAN 4'
LOWER THAN DESIGN BOTTOM.
• • • • A
24" THICK CLASS 1 RIPRAP, CONFORM TO EXISTING
UPSTREAM AND DOWNSTREAM BANKS
?I
4' MAX, SEE NOTE 1
2 Stone Toe
3.1 of to bcatle
Section
(Riffle Typical shown, same for Pool)
NOTES:
1. THE TOP AND FACEEACH UFT SHALL BE SEEDED AND MULCHED BEFORE WRAPPING WITH MATTING.
2. SOIL USED FOR LIFTSTS SHALL
HALL BE CLEAN, LOAMY SOIL FREE OF ROCKS AND DEBRIS.
3. LIFTS SHALL BE MODERATELY COMPACTED 50 THAT FOOTPRINTS ARE NOT VISIBLE UPON COMPLETION.
4. SEE CROSS SECNON SHEETS FOR GEOLIFT BASE TREATMENTS IN CUT AND FILL SCENARIOS.
5. LIVE STAKING SHOULD BE COMPLETED DURING THE DORMANT SEASON, GENERALLY DECEMBER TO APRIL
BANKFULL BENCH OR FLOODPLAIN
ELEVATION 1' HEIGHT SOIL
GEOUFTSa2
23" PER ENGINEER'S DISCR 0
BASE OF FIRST
uFTB"AVERT
DOWNSTREAM
PoFFLE IN
MIX SOIL
ON TOP 3'
LAVER TO PROVIDE
BEDDING FOR CUTTINGS
EROSION CONTROL MATTING WITH BURLAP
WRAPPED AROUND SOIL TO CREATE GEOLIFT,
SEE LAP DETAIL
DORMANT
—� LIVE CUTTINGS
WEATHERED ROCK (CUT AREAS)
\\l- OR CLASS 1 RIPRAP STONE BASE
WEATHERED ROCK (FILLAREAS)
OR COMPACTED
FILL, SEE CROSS SECTIONS
Section View
(Pool Typical Section Scenario)
Geohfts
3.1 Not to Scale
2.0' (TYP)
�8.
2' (TYP)
Matting Lap Detail
ORIGINAL
CHANNELBED
Illmdssfor OtoKR LJsa Ranches
Scien1lift Name
Common No"
Sala sellcee
Silky Willow
Physokxrpm opulibhm
Nmnlhelk
Sala Nola
Black Willow
Cephalarahus occidentalis
Buttorbush
a
zZvo�
B
pVnm2
Z
^Z Yrmia�
-i x-mn J
)2e��E
3� LL
S
t
T
ogm3m
2 a
.. •m7.....--- Jul■
.... a..• .:
n. ".si7'".'.i'. i .'i'..'.iiB
MENE-Iii 77•.•.iiii:i7�:iiiii 'iiif�l 'mg..l
..:�:::� 6 G:S�iia
ii
6" MIN. AM RLABDIRE /
DOWNSTREAM DIRECTION
AT MAP ENDS L"
TOP OF BANK
TOE OF SLOPE
0.6"
Eco Stake
TOP OF BANK
TOE STAKE (TVP) Section View NOTE:
1. SEE PROJECT SPECIFICATIONS FOR TOE STAKE
ECOSTAKE (TYP)
Erosion Control Matting
32 Not to Scale
FILTER FABRIC
COMPACTED FILL
EXTEND FABRIC
IMO TRENCH
NOTES:
1. USE WIRE A MINIUM OF 32" IN WIDTH AND WITH
A MINIMUM OF 6 LINES OF WIRES WITH 12" STAY
SPACING.
2. USE FILTER FABRIC A MINIMUM OF 36" IN WIDTH
AND FASTEN ADEQUATELY TO THE WIRES AS
DIRECTED BY THE ENGINEER
3. PROVIDE 5' STEEL POST Of THE SELF -FASTENER
ANGLE STEEL TYPE. ANGLE STEEL TYPE.
EXISTING GROUND
rx
4" g o
�Q
�1 Temporary Silt Fence
32 of to Scale
NOTES:
1. PROVIDE TURNING RADIUS SUFFICIENT TO
ACCOMMODATE LARGE TRUCKS.
5. LOCATE CONSTRUCTION ENTRANCE AT ALL POINTS
OF INGRESS AND EGRESS UNTIL SITE IS STABILIZED.
PROVIDE FREQUENT CHECKS OF THE DEVICE AND
TIMELY MAINTENANCE.
6. MUST BE MAINTAINED IN A CONDITION WHICH
WILL PREVENT TRACKING OR DIRECT FLOW OF MUD
ONTO STREETS. PERIODIC TOP DRESSING WITH
STONE WILL BENECESSARY.
7. ANY MATERIAL TRACKED ONTO THE ROADWAY
MUST BE CLEANED IMMEDIATELY.
B. USE CLASS A STONE OR OTHER COARSE AGGREGATE
APPROVED BY THE ENGINEER.
9. PLACE FILTER FABRIC BENEATH STONE.
it Construction Entrance
3.2 Not to Scale
1. UVE STAKES TO BE PLANTED IN AREAS AS SHOWN ON PLANS AND DIRECTED
BY THE ENGINEER.
2. 3x3' AVG SPACING (2 ROWS ON BANKS)
3. LIVE STAKING SHOULD BE COMPLETED DURING THE DORMANT SEASON,
GENERALLY DECEMBER TO APRIL
96
Y �
LIVE STAKE (TYP)
TOE OF SLOPE
Section View
LIVE STAKE (TYP) TOP OF BANK
A A A A
-44"to11, A A A
A 3- A A A I.
A A A A
A A A A A
Plan View TOE OF SLOPE
Liw Stakes
B' MAX. WITH WIRE
WITH
Common Name
16' MAX. WIRE)
Willow
MIDDLE AND VERTICAL WRES
Nnebark
MIN
Buttoni
FILTER FABRIC
TOP AND BOTTOM STRAND
&SHALL}GAGE
May 15 -Aug 15
SHALL BE 10 GAUGE MIN.
40
-
2.000
201010 Femlaer
WIRE
Straw Mulch
FILTER FABRIC
COMPACTED FILL
EXTEND FABRIC
IMO TRENCH
NOTES:
1. USE WIRE A MINIUM OF 32" IN WIDTH AND WITH
A MINIMUM OF 6 LINES OF WIRES WITH 12" STAY
SPACING.
2. USE FILTER FABRIC A MINIMUM OF 36" IN WIDTH
AND FASTEN ADEQUATELY TO THE WIRES AS
DIRECTED BY THE ENGINEER
3. PROVIDE 5' STEEL POST Of THE SELF -FASTENER
ANGLE STEEL TYPE. ANGLE STEEL TYPE.
EXISTING GROUND
rx
4" g o
�Q
�1 Temporary Silt Fence
32 of to Scale
NOTES:
1. PROVIDE TURNING RADIUS SUFFICIENT TO
ACCOMMODATE LARGE TRUCKS.
5. LOCATE CONSTRUCTION ENTRANCE AT ALL POINTS
OF INGRESS AND EGRESS UNTIL SITE IS STABILIZED.
PROVIDE FREQUENT CHECKS OF THE DEVICE AND
TIMELY MAINTENANCE.
6. MUST BE MAINTAINED IN A CONDITION WHICH
WILL PREVENT TRACKING OR DIRECT FLOW OF MUD
ONTO STREETS. PERIODIC TOP DRESSING WITH
STONE WILL BENECESSARY.
7. ANY MATERIAL TRACKED ONTO THE ROADWAY
MUST BE CLEANED IMMEDIATELY.
B. USE CLASS A STONE OR OTHER COARSE AGGREGATE
APPROVED BY THE ENGINEER.
9. PLACE FILTER FABRIC BENEATH STONE.
it Construction Entrance
3.2 Not to Scale
1. UVE STAKES TO BE PLANTED IN AREAS AS SHOWN ON PLANS AND DIRECTED
BY THE ENGINEER.
2. 3x3' AVG SPACING (2 ROWS ON BANKS)
3. LIVE STAKING SHOULD BE COMPLETED DURING THE DORMANT SEASON,
GENERALLY DECEMBER TO APRIL
96
Y �
LIVE STAKE (TYP)
TOE OF SLOPE
Section View
LIVE STAKE (TYP) TOP OF BANK
A A A A
-44"to11, A A A
A 3- A A A I.
A A A A
A A A A A
Plan View TOE OF SLOPE
Liw Stakes
Scientific Name
Common Name
Salix senceaSilky
Willow
Physocanp oglildiw
Nnebark
Cephalarihus occidentalis,
Buttoni
a1 2k
1/2" TO 2" a
DIAMETER in p
oW
Live Stake Detail
�9 Live Staking
Notto cal
IMPERVIOUSDIKE
(SEE INSET'B")
T-mporary Seeding (Do Not Apply Amendments to Steam Banks)
Det.
Type Planting Rate (Iberacre)
Jan 1 -May 15
Rye Gram
120
Ground Agncultuml Limestone
2,000
2010.10 FertA¢er
750
Stray Mulch
4,000
May 15 -Aug 15
Browntap Millet
40
Ground Agncukural Limestone
2.000
201010 Femlaer
750
Straw Mulch
4,000
Aug 15 - Dec 30
Rye Grain
120
Ground Agricultural Limestone
2,000
20-1010 Fedil¢er
1,000
Strew Much
4,000
Temporary Seeding and Mulching
32 Not to Scale
Dewatering Bag
Riparian Seeding
3.2 Not to Scale
Stabilization Seeding
Riparian Seed Mix
Ib/acre
Stream Banks, Disturbed Buller and Upland Areas
too
Seeding Rate. 201b/acm
So-,- Name
Common Name
Percentage
Panicun clande&inum
Deer Tongue
20
Andropogon geraN11
Big 131 a lem
20
Elymm Wryinicus
Vagina wildrye
20
Sorghastnm nuam
ndlangrass
20
Chasmanthiun latrfdicm
Ryer Oats
10
Juncus e0usm
Sol, Rusn
10
Riparian Seeding
3.2 Not to Scale
Stabilization Seeding
Scientific Name Common Name
Ib/acre
Schodonorus phoenix TW Feeoue
too
nStabilization Seeding
32 Not to Scale
HIGH STRENGTH
DOUBLE STITCHED
J" TYPE SEAMS.
INTAKE HOSE BAG PLACED ON
l AGGREGATED OR STRAW.
f PUMP
DEWATERING
f BAG
DISCHARGE HOSE —
15'
INTAKE HOSE
PUMP
SEEDING:
1. SEEDBED WILL BE AMENDED WITH TOPSOIL APPLICATION.
2. PH LEVEL OF SOIL SHALL BE 5.5 TO
3. SEEDBED SHALL BE LOOSE AND FREE OF ROCKS AND DEBRIS PRIOR TO
SEEDING AND MULCHING
4. FOR PERMANENT SEEDING, REFER TO NOTES ON SHEET 1.1. TEMPORARY AND
PERMANENT SEED SHOULD BE APPLIED TOGETHER IF PLANTING DATES
ALLOW.
MULCHING:
1. 2 TONS PER ACRE
2. GRAIN STRAW PREFERED, NCDOT ALTERNATIVES WILL BE CONSIDERED UPON
REQUEST, AS WILL LEAVES
3. SEEDBED SHALL BE LOOSE AND FREE OF ROCKS AND DEBRIS PRIOR TO
SEEDING AND MULCHING
Low Growing Tree & Shrub Species
32 Not to Scale
y,
z�
U
2x CONTAINER WIDTH
Containerized
Not to Scale
T
a v ".
Z 4
Z
innm.
��Z
x �mrm
O e?u
�Z MQ:LLE
i
-WN IN SPOUT EXISTING TERRAIN DEWATERING BAG
HIGH STRENGTH STRAPPING
TREES&
.JaQ'l��•.•• y4•'•"
SHRUBS:mM1d�,
=N Q uri i� E? N
1. 7'17'
tiW y 2 O
o
8
SP Ar
rf
''••banwP��` ��.
-WN IN SPOUT EXISTING TERRAIN DEWATERING BAG
HIGH STRENGTH STRAPPING
FOR HOLDING HOSE
IN PLACE.
-WATER FLOW
STREAM BED
FROM PUMP
n
\ FLEXIBLE
8" of CLASS B Fill
DISCHARGE HOSE
FILTER FABRIC
15' to 20'
Inset "A"
NOTE:
Dewatering Bag
1. PROVIDE STABILIZED OUTLET TO
STREAMBED.
SAND BAG
(24" X 12" X 6")
OR STONE.
'��J).SETW)
IMPERVIOUS SHEETING
FLOW
� � ��, 1Inset "B"
Impervious Dike
DISCHARGE HOSE 7J 1 \fol X 5' STABILIZED OUTLET 'FILTER FABRIC
EWATERING
/ USING CLASS B RIPRAP AND
DBAG NCDOTTYPE 2 FILTER FABRIC
(SEE INSET "A") (SEE INSET "C")
Plan View 10 Pump Around System
32 Not to Scale
10' MIN.
Inset"C"
Stabilized Outlet
STABILIZED OUTLET USING CLASS B
RIPRAP TRENCHED INTO EXISTING
GROUND A MINIMUM OF 6". SIZE AND
LOCATION TO BE DETERMINED IN THE
FIELD BY THE ENGINEER.
FLEXIBLE DISCHARGE HOSE FROM
/PUMP AROUND PUMP HELD IN PLACE
WITH SAND BAGSASNEEDED.
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