20210420 Ver 1_USACE Permit_20210426

U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action ID. SAW-2021-00704 County: Buncombe
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Permittee: Town of Black Mountain / Attn: Jessica Trotman
Address: 160 Midland Avenue
Black Mountain, NC 28711
Telephone Number: 828-419-9300
Location description: The site for the bank stabilization project is located at Veterans Park, off Blue Ridge Road, in
Black Mountain, NC. Coordinates are: 35.608464 -82.335777
Description of projects area and activity: This permit authorizes fill, excavation, placement of in -stream structures and
bank sloping/planting. Impacts authorized by this permit total 1,100 linear feet of the Swannanoa River. In -stream
work is prohibited from January 1 to April 15 to protect Wild Rainbow Trout spawning. Attached are additional
recommendations from the North Carolina Wildlife Resource Commission for your consideration.
Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344)
❑ Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Regional General Permit Number or Nationwide Permit Number: 27
SEE ATTACHED RGP or NWP GENERAL, REGIONAL AND SPECIAL CONDITIONS
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the
attached conditions, above noted special conditions, and your submitted application and attached information dated
March 22, 2021. Any violation of the attached conditions or deviation from your submitted plans may subject the
permittee to a stop work order, a restoration order, a Class I administrative penalty, and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide/regional authorization is
modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide/regional permit authorization
is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies
with all requirements of the modified nationwide/regional permit. If the nationwide/regional permit authorization expires or is
suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the
nationwide/regional permit, activities which have commenced (i.e., are under construction) or are under contract to commence
in reliance upon the nationwide/regional permit, will remain authorized provided the activity is completed within twelve months
of the date of the nationwide/regional permit's expiration, modification or revocation, unless discretionary authority has been
exercised on a case -by -case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification.
You should contact the NC Division of Water Resources (telephone [phone]) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act
(CAMA), prior to beginning work you must contact the N.C. Division of Coastal Management.
This Depaittnent of the Army verification does not relieve the permittee of the responsibility to obtain any other required
Federal, State or local approvals/permits.
If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory
program, please contact Amanda James at 828-271-7980, ext. 4225 or [e-mail].
Corps Regulatory Official: / Date: April 26, 2021
Amanda Jones
Expiration Date of Verification: March 18, 2022
CF: Headwaters Engineering, Attn: Andrew Bick (via email)

Action ID Number: SAW-2021-00704 County: Buncombe
Permittee: Town of Black Mountain / Attn: Jessica Trotman
Project Name: Veterans Park Bank Stabilization / NWP #27
Date Verification Issued: April 26, 2021
Project Manager: Amanda Jones
Upon completion of the activity authorized by this permit and any mitigation required by the permit,
sign this certification and return it to the following address:
US ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Attn.: Amanda Jones
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of
Engineers representative. Failure to comply with any terms or conditions of this authorization may
result in the Corps suspending, modifying or revoking the authorization and/or issuing a Class I
administrative penalty, or initiating other appropriate legal action.
I hereby certify that the work authorized by the above referenced permit has been completed in
accordance with the terms and condition of the said permit, and required mitigation was completed in
accordance with the permit conditions.
Signature of Permittee Date

4
North Carolina Wildlife Resources Commission
Cameron Ingram, Executive Director
April 6, 2021
Ms. Amanda Fuemmeler
U.S. Army Corps of Engineers, Regulatory Branch
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
SUBJECT: Swannanoa River Stabilization at Veterans Park
Swannanoa River, Buncombe County
Dear Ms. Fuemmeler:
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed an
application to stabilize 1,100 ft of the Swannanoa River in Buncombe County. NCWRC staff
attended a site visit on March 16, 2021. Our comments on this application are offered for your
consideration under provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and Fish
and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d).
Wild Rainbow Trout are found in the project vicinity, and in -stream work should be avoided
between January 1 and April 15 to minimize impacts to trout reproduction. In addition, the
Eastern Hellbender [Cryptobranchus alleganiensis, US Federal Species of Concern (FSC), NC
Special Concern] is found in the Swannanoa River in the area of the project. Due to the
sensitivity of these species to fine sediments, it is essential that excellent erosion and sediment
control be maintained during the project.
The project involves the stabilization of an eroding reach of river at three main work areas, with
the work taking place over approximately 3 months. Four constructed riffles, log vanes, a rock
vane, brush mattresses, and geolifts will be used. A new section of channel will be constructed to
reroute the channel around a tight meander bend. Sloping and planting of native riparian
vegetation will also be done. Most of the work will occur from the top of bank. According to
Andrew Bick, a coffer dam of large rock will be used to divert flows away from work areas
including those involving geolifts, vane tie-in locations, and constructed riffles.
Due to the potential for the project reach to support hellbenders, NCWRC biologists will survey
for and relocate animals before the project begins.
Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]

Swannanoa River Stabilization Page 2 April 6, 2021
Swannanoa R, Buncombe Co
We offer the following recommendations to minimize impacts to fish and wildlife resources:
1. In -stream work should be avoided between January 1 and April 15 to minimize impacts to
trout reproduction.
2. The applicant should notify Lori Williams ([e-mail]) and Andrea Leslie
([e-mail]) at least 3 weeks before project construction is to begin so the
affected reach can be surveyed for hellbenders and found animals relocated.
3. Be vigilant with sediment and erosion control during site staging, construction, and cleanup.
Disturbed areas should be stabilized at the end of each day.
4. Work should be done at low flows.
5. Any erosion control matting used should be free of nylon or plastic mesh, as this type of
mesh netting frequently entangles wildlife and is slow to degrade, resulting in a hazard that
may last for years.
6. We recommend that a woody buffer of at least 30 feet be planted in order to ensure project
success. A wide forested buffer can ensure greater bank stability, filter overland pollutants,
and provide habitat for birds and other wildlife.
7. If Eastern Hellbenders are disturbed during construction, they should be captured in a bucket
and moved away from the area of disturbance. Contact Lori Williams
([e-mail]) if animals are seen.
Thank you for the opportunity to review and comment on this project. Please contact me at
[phone] if you have any questions about these comments.
Sincerely,
Andrea Leslie
Mountain Region Coordinator, Habitat Conservation Program
ec: Andrew Bick, Headwaters Engineering
Andrew Moore, NC Division of Water Resources
Byron Hamstead, US Fish and Wildlife Service
Lori Williams, NCWRC

PREPARED FOR:
NORTH TH CAROL! NA
SWANNANOA RIVER ENHANCEMENT PROJECT
VETERANS PARK
BLACK MOUNTAIN, NORTH CAROLINA
1.711
SHEET INDEX
1: TITLE
2: NOTES AND LEGEND
3: OVERVIEW & SHEET LAYOUT
4: CONSTRUCTION SEQUENCE
5-6: NCGO1 SHEETS FOR EROSION CONTROL PERMIT
7: EROSION AND SEDIMENTATION CONTROL PLAN
8-11: PLAN AND PROFILE
12: TYPICAL SECTIONS
13-16: DETAILS
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TITLE
SHEET 1 OF 16

a_
CONSTRUCTION NOTES:
1. WORK SHALL BE STAGED SUCH THAT NO MORE RIVER BANK IS DISTURBED THAN CAN BE STABILIZED AT THE END OF
THAT WORK DAY.
2. EXCAVATION FOR THE NEW CHANNEL BETWEEN STA. 10+00 AND 11+00 SHALL BE COMPLETED PRIMARILY OFF-LINE IN THE
DRY, WITH FLOW BEING MAINTAINED IN THE EXISTING CHANNEL UNTIL THE NEW CHANNEL IS STABLIZED WITH SEED, MULCH,
MATTING AND IN -STREAM STRUCTURES.
3. EQUIPMENT SHALL OPERATE FROM THE TOP OF BANK AS MUCH AS PRACTICAL. CONSTRUCTION HAUL ROUTES AND
ACCESS LOCATIONS SHALL BE SELECTED SUCH THAT TREE REMOVAL AND OTHER IMPACTS ARE MINIMIZED.
4. EXCESS EXCAVATED MATERIAL MUST BE DISPOSED IN APPROVED UPLAND AREAS OR OFF -SITE.
5. ALL EQUIPMENT SHALL BE CLEANED PRIOR TO MOBILIZATION AND SHALL BE MAINTAINED TO BE FREE OF LEAKS.
6. FUELING SHALL BE PERFORMED IN A CONTAINED AREAAT LEAST 200 FEET FROM FLOWING WATER.
7. TREES BEYOND THE GRADING LIMITS SHALL BE PROTECTED. HARDWOOD TREES AND LOGS REMOVED DURING GRADING
SHALL BE SALVAGED FOR ON -SITE USE AS IN THE PROJECT UNLESS DIRECTED OTHERWISE. LOGS AND CLEARING DEBRIS
NOT USEFUL TO THE PROJECT SHALL BE DISPOSED OFF -SITE.
8. BIOENGINEERING PRACTICES AND LIVE STAKES SHALL BE INSTALLED DURING THE DORMANT SEASON, TYPICALLY
DECEMBER THROUGH APRIL. DEPENDING ON WHEN EARTHWORK IS COMPLETED, THIS MAY REQUIRE A SEPARATE PHASE.
LEGEND
EXISTING PROPOSED
MINOR CONTOUR (1') LIMITS OF DISTURBANCE
MAJOR CONTOUR (5') STREAM CENTERLINE
PARCEL TOP OF BANK
SANITARY SEWER TOE OF BANK
STORM DRAIN - CONSTRUCTED RIFFLE
TREE LOG VANE
WETLAND BOULDER VANE
GEOLIFTS
BRUSH MATTRESS
TEMP. STREAM CROSSING
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NOTES AND
LEGEND
SHEET 2 OF 16

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WORK ARE • 3
TOWN OF
BLACK MOUNTAIN
WORK AREA 2
MAP G NOTE .:
AERI' MAGERY .' • 2r •.
2. "OGRAPHIC DATA FRO v
SURVEY _ •ATED FEB. 2019. D • U
3. SANITARY S - ' LOCATION I
MONTREAtf COLLEGE
WORK AREA 1
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DATE: MARCH 2021
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OVERVIEW
SHEET 3 OF 16

CONSTRUCTION SEQUENCE
d
d
Mobilization and Site Preparation
1. Mobilize equipment and materials to the site and locate LOD.
2. Install the construction entrance/exit as shown on the plans. Use the existing cleared path on the right descending floodplain as the primary access to the work areas. Add crushed stone as needed to fill
ponded areas and protect the culvert crossing at Tomahawk Branch.
3. Hardwood trees that require removal per the plans shall be salvaged for on -site use.
4. Limit stripping to those areas that will be graded within 3 days in order to minimize subgrade softening.
5. The stems and root masses of exotic invasive species (multi -flora rose, Japanese honeysuckle, Chinese privet, etc.) generated during grading operations shall be burned on -site or disposed in approved
off -site locations. A permit from WNC Regional Air Quality Agency (828.250.6777) is not required, but burning must comply with agency regulations.
6. Any stockpiled materials not used for backfill within 7 days of excavation shall be stabilized with temporary seed and straw mulch.
Work Area 1
7. Slope right bank and establish temporary river crossing at constructed riffle using on -site cobble and gravel, with Class 1 stone as needed to create stable crossing.
8. Complete right bank grading excavation and haul enough cut material for geolifts on left bank. Temporarily stockpile excavated materials within the LOD and place silt fence on river side of temporary
stockpile.
9. Construct stone toe and geolifts on the left bank, operating from the top of the left bank as much as practical. Backfill abandoned channel behind completed geolifts. Cross to right bank when geolifts are
complete.
10. Fine grade constructed riffle with additional stone and wood per the plans.
11. Construct stone toe, geolifts and log vane on the right bank, operating from the top of the right bank as much as practical.
12. Naturalize the LOD and move to Work Area 2.
Work Area 2
13. Place Class 1 stone for constructed riffle between stations 8+30 and 9+10. Slope right bank and establish temporary river crossing at constructed riffle.
14. Complete off-line channel grading between stations 10+20 and 10+80, leaving bank material at upstream and downstream ends and maintaining flow in the original channel. Stabilize graded banks with
seed and matting. Install constructed riffle.
15. Haul cut materials to left bank for use in geolifts and channel backfill. Place silt fence on river side of stockpile.
16. Place stone/wood foundation for geolifts as temporary flow diversion across original channel to be abandoned. Remove bank material from upstream and downstream ends of off-line channel, allowing flow
to pass through new channel section.
17. Install log vanes on right bank between stations 11+00 and 11+60.
16. Proceed with geolifts, log vane and abandoned channel backfilling on left bank. Place and compact excess cut materials in abandoned channel section in lifts not exceeding 12 inches in thickness.
17. Install constructed riffle and geolifts between stations 12+20 and 13+80, working from left bank as much as practical and avoiding damage to existing park facilities.
Work Area 3
18. Establish haul road to Work Area 3 along tree line beyond outfield limits.
19. Perform bank grading and boulder vane installation.
20. Haul excess cut materials to abandoned channel section in Work Area 2 and use as backfill.
21. Disc, seed and mulch haul road through outfield.
22. Move all equipment back to right side of river
23. Abandon river crossing and fine grade constructed riffle between stations 8+30 and 9+10 with additional stone and wood per the plans.
24. Naturalize the LOD.
Demobilization
25. Rip, seed and mulch haul roads and staging areas.
26. Remove trash and debris and restore disturbed areas to their pre -construction conditions.
27. Remove construction entrance/exit.
Planting/Bioengineering
28. Bare root plants and live stakes shall be installed during the dormant season, generally December through March.
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CONSTRUCTION
SEQUENCE
SHEET 4 OF 16

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GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCGO1 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having
jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Stabilize within this
many calendar
Site Area Description
days after ceasing
Timeframe variations
land disturbance
(a) Perimeter dikes,
swales, ditches, and
perimeter slopes
7
None
(b) High Quality Water
(HQW) Zones
7
None
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
(d) Slopes 3:1 to 4:1
14
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
(e) Areas with slopes
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW Zones
flatter than 4.y 1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump pq and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
•
PLAN
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
SECTION A -A
ifiN6PLLoCATIo. DETERMINED INFIELD
BELOW GRADE WASHOUT STRUCTURE
NOT TO SCALE
PLAN
ABOVE GRADE WASHOUT STRUCTURE
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/19
DESCRIPTION
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NCGO1 -1
SHEET 5 OF 16

SELF -INSPECTION,
SECTION A: SELF -INSPECTION
PART III
RECORDKEEPING AND REPORTING
normal business hours in accordance with the table
site conditions would cause the safety of the inspection
may be delayed until the next business day on
In addition, when a storm event of equal to or
of normal business hours, the self -inspection shall be
of the next business day. Any time when inspections
Inspection Record.
Inspection records must include:
Self -inspections
below. When adverse
personnel to be
which it is safe to
greater than 1.0
performed upon
were delayed shall
Inspect
are required during
weather or
in jeopardy, the inspection
perform the inspection.
inch occurs outside
the commencement
be noted in the
Frequency
{during normal
business hours)
(1) Rain gauge
maintained in
good working
order
Daily
Daily rainfall amounts.
If no daily rain gauge observations are made during weekend or
holiday periods, and no individual -day rainfall information is
available, record the cumulative rain measurement for those un-
attended days {and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) MSC
Measures
At least once per
7 calendar days
and within 24
hours of a rain
event? 1-0 inch In
24 hours
_
1- Identification of the measures inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Indication of whether the measures were operating
properly,
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) stormwater
discharge
outfalls {SDOs(
At least once per
7calendar days
and within 24
hours of a raln
event > 1.0 inch in
24 hours
1. Identification of the discharge outfalls inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Evidence of Indicators of stormwater pollution such as oil
sheen, floating or suspended solids or discoloration,
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
site
At least once per
7 calendar days
and within 24
hours of a rain
event a. 1.0 inch in
24 hours
,visible sedimentation is found outside site limits, then a record
of the following shall be made:
1. Actions taken to clean up or stabilise the sediment that has left
the site limits,
2. Description, evidence, and date of corrective actions taken, and
3- An explanation as to the actions taken to control future
releases.
(5) Streams or
wetlands onsite
or offsite
(where
accessible)
At least once per
7 calendar days
and within 24
hours of a rain
event? 1.0 inch in
24 hours
If the stream or wetland has increased vlslble sedimentation or a
stream has visible increased turbidity From the construction
activity, then a record of the following shall he made:
1. Description, evidence and date of corrective actions taken, and
2. Records of the required reports to the appropriate Division
Regional Office per Part III, Section C, Item (2){a} Cif this permit.
(6) Ground
stabilization
measures
After each phase
afgrading
-
1. The phase of grading [installation of perimeter E&SC
measures, clearing and grubbing, installation of storm
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground covert.
2. Documentation that the required ground stabilization
measures have been provided within the required
tlmefra me or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
SELF -INSPECTION, RECORDKEEPING
SECTION B: RECORDKEEPING
PART III
AND REPORTING
deviation shall be kept on the site. The
throughout the coverage under this permit.
plan shall be kept on site and available for
hours.
1.
2.
3.
E&SC Plan Documentation
The approved E&SC plan as well as any approved
approved E&SC plan must be kept up-to-date
The following items pertaining to the E&SC
inspection at all times during normal business
Item to Document
Documentation Requirements
(a) Each E&SC measure has been installed
and does not significantly deviate from the
locations, dimensions and relative elevations
shown on the approved E&SC plan.
Initial and date each E&SC measure an a copy
of the approved E&SC plan or complete, date
and sign an inspection report that lists each
E&SC measure shown on the approved E&5C
plan_ This documentation is required upon the
Initial installation of the E&SC measures or if
the E&SC measures are modified after initial
installation_
[6) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an Inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
in accordance with the approved E&SC
plan.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
requirements for all E&SC measures
have been performed.
Complete, date and sign an inspection report.
(e) Corrective actions have been taken
to E&SC measures-
Initial and date a copy of the approved E&SC
plan or complete. date and sign an inspection
report to indicate the completion of the
corrective action.
Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
Documentation to be Retained for Three Years
All data used to complete the e-NOI and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes [After Discovery) and Other Requirements
(a) Visible sediment
deposition in a
stream or wetland
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that contains a description of the
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• lithe stream is named on the NC 303(d}_list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
release of
hazardous
substances per Item
1(b)-(c) above
• Within 24 hours, an oral or electronic notification. The notification
shall include information about the date, time, nature, volume and
location of the spill or release.
(c) Anticipated
bypasses [40 CFR
122.41[m){3)I
• A report at least ten days before the dote of the bypass if possible.
The report shall include an evaluation of the anticipated quality and
effect of the bypass.
(d) Unanticipated
bypasses [40 CFR
122.41(m)(3)]
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that includes an evaluation of the
quality and effect of the bypass.
(e) Noncompliance
with the conditions
of this permit that
may endanger
health or the
environment{40
CFR 122.41(I)(7)}
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that contains a description of the
noncompliance, and its causes; the period of noncompliance,
including exact dates and times, and if the noncompliance has not
been corrected, the anticipated time noncompliance is expected to
continue; and steps taken or planned to reduce, eliminate, and
prevent reoccurrence of the noncompliance. [40 CFR 122.41[I)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING
EFFECTIVE: 04/01/19
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BLACK MOUNTAIN, NC
NCG01 - 2
SHEET 6 OF 16

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CONSTRU
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TEMP. STOCKPILE
TOWN OF
BLACK MOUNTAIN
USE CONSTRUCTED
RIFFLES FOR TEMP.
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C CTION HAUL ROUTE _�
ALONG (STING CLEARED
R EASEMENT
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BLACK MOUNTAIN, NC
DATE: MARCH 2021
SCALE: AS SHOWN
EROSION &
SEDIMENTATION
CONTROL PLAN
SHEET 7 OF 16

0
2285
2280
2275
2270
2265
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40'
80'
ce
REMOVE DAMAGED
WATER LEVEL RECORDER
120'
LOD Lop
007
MONTREAT COLLEGE
007
/
0
v
PLAN
USE CONSTRUCTED RIFFLE
FOR TEMP. RIVER CROSSING;
SELECT ROUTE THAT MINIMIZES
TREE REMOVAL
TOWN OF BLACK MOUNTAIN
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DATE: MARCH 2021
SCALE: AS SHOWN
PLAN & PROFILE
1+00 EXISTING GROUND @
PROP. THALWEG
2+00
3+00
PROFILE
4+00
5+00
6+00
SHEET 8 OF 16

•
2285
2280
2275
2270
2265
TOWN OF BLACK MOUNTAI
USE CONSTRUCTED RIFFLE
FOR TEMP. RIVER CROSSING;
SELECT ROUTE THAT
MINIMIZES TREE REMOVAL /
0
EXTEND 24" CMP i-
FIELD DRAIN TO
NEW CHANNEL
00
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PLAN °.
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120'
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DATE: MARCH 2021
SCALE: AS SHOWN
PLAN & PROFILE
6+00 EXISTING GROUND @
PROP. THALWEG
7+00
8+00
PROFILE
9+00
10+00
11+00
SHEET 9 OF 16

2285
2280
2275
2270
2265
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BACKFILLABANDONED '------
\ \ CHANNEL SEGMENT
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CONSTRUCTED RIFFLE
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LOD
TOWN OF BLACK MOUNTAIN
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80'
120'
PLAN
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r
11+00 EXISTING GROUND @
PROP. THALWEG
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DATE: MARCH 2021
SCALE: AS SHOWN
PLAN & PROFILE
12+00
13+00
PROFILE
14+00
15+00
16+00
SHEET 10 OF 16

m
SS
LOD SS
LOD � SS
LOD
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GEOLIFTS @ 1:1 SLOPE
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00>
REMOVE 5 LEANING
TREES, LEAVE STUMPS
007
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US-1NG 12+/- ON -SITE
__BOULDERS IN THIS AREA
00%
0
REMOVE TWO TREES <18" DIAM.
LEFT BANK UPSTREAM OF VANE
40'
W
80'
00
120'
Gob
LOD
LOD LOD LOD
2285
2280
2275
2270
2265
2285
2280
2275
2270
2265
----
16+00 EXISTING GROUND @ 17+00 18+00 19+00 20+00
PROP. THALWEG PROFILE
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DATE: MARCH 2021
SCALE: AS SHOWN
PLAN & PROFILE
SHEET 11 OF 16

d
d
LEGEND
EXISTING -
PROPOSED
20' TYP 52.5' _ _
��-------- 2.5 (TYP) i
1� 4.5'
30.0' J }
1 \ TYPICAL RIFFLE
12
1"=20'
66.8' -1 1 z _ —
4 2.5 Y
11 ——
1
/7.2'
20.0'
2 TYPICAL POOL
12 1"=20'
3:1 (TYP)
NOTES:
1. POOL TYPICALS DRAWN FOR RIGHT BENDING REACH; USE
MIRROR IMAGE FOR LEFT BENDING REACH.
0' 20' 40' 60' 2. BANKS SHALL BE ROUGHENED PERPENDICULAR TO SLOPE,
COVERED WITH 2" LAYER OF TOPSOIL, SEEDED, MULCHED AND
MATTED WITH 780 G/SM COIR FIBER MATTING.
3. BACKFILLED CHANNEL SEGMENTS AND OTHER DISTURBED AREAS
SHALL BE SEEDED AND MULCHED.
w
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REVISIONS
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DATE: MARCH 2021
SCALE: AS SHOWN
TYPICAL
SECTIONS
SHEET 12 OF 16

00
0
7
W
detfit
:Art
30' +/-
ROOTWAD FOOTER OR
BOULDER AT TIE-IN
BURY TIP IN
BED MATERIALS
TOP OF BANK
Z
BACKFILL UPSTREAM
SIDE WITH ON -SITE
GRAVEL AND COBBLE
18" MIN. DIAM.
HARDWOOD LOG
WITH INTACT ROOT MASS
IF AVAILABLE
PLAN (AT HEAD OF POOL)
ROOTWAD FOOTER OR
BOULDER AT TIE-IN
PROFILE A -A'
TRENCH 4' INTO BANK
AND BACKFILL IN COMPACTED
LIFTS OR ON -SITE COBBLE
NAIL NON -WOVEN FILTER
FABRIC TO UPSTREAM
FACE OF LOG
BACKFILL W/ ON -SITE
GRAVEL AND COBBLE
4' MIN.
LOG VANE
NTS
FABRIC 6" MIN.
BELOW BED
RIVER BED
SECTION B-B'
UNDERCUT SOFT/LOOSE
SEDIMENT FROM SUBGRADE TO
ACHIEVE MIN. 18" THICKNESS
VARIES 30'-35'
THALWEG
6" +/- LOWER
THAN EDGES
SECTION A -A'
GLIDE; STONE
ADDED WHERE
INDICATED
ON PLAN
MICRO POOL,
TYP 1' DEEP
RIFFLE;
SEE PLAN
FOR LENGTH
RUN; STONE
ADDED WHERE
INDICATED ON PLAN
EMBED LOGS MIN. 3'1
;0Oo�iO
41.
RIFFLE MATERIAL:
CLASS 1 RIPRAP MIXED WITH
ON -SITE COBBLE AND GRAVEL
PLAN
CONSTRUCTED RIFFLE
NTS
ELEVATION POINT (TYP);
SEE PROFILE
TOE OF BANK (TYP);
RIFFLE EXTENDS
MIN. 1' BEYOND TOE
SALVAGED ON -SITE 12"
MIN. DIAM. HARDWOOD
TRUNK (TYP);
GENERALLY 3 TO 5 LOGS
PER RIFFLE
HALF TO ONE -TON
BOULDER (TYP)
MEANDERING THALWEG
AT BASE FLOW
SHARPEN POINT
AND DRIVE LOGS
INTO BANK
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BLACK MOUNTAIN, NC
DATE: MARCH 2021
SCALE: AS SHOWN
STRUCTURE
DETAILS
SHEET 13 OF 16

6" DIVERSION BERM
IF DIRECTED
SEE COIR
MATTING DETAIL
COIR MATTING NOT SHOWN
FOR CLARITY
TOP OF MATTRESS —I`
BRUSH MATTRESS
STAKE, TYP
NOTES:
1. IF EARTHWORK IS DONE OUTSIDE OF THE DORMANT SEASON, GRADE BANK TO DESIGN SLOPES AND
DIMENSIONS, SEED, MULCH AND MAT THE BANK AND RETURN DURING DORMANT SEASON TO INSTALL
BRUSH CUTTINGS. REMOVE MATTING PRIOR TO BRUSH INSTALLATION.
2. PLACE LIVE CUTTINGS ON GRADED BANK WITH BUTT ENDS EXTENDING TO BASE FLOW WATER
SURFACE.
3. DRIVE STAKES HALFWAY INTO BANK BETWEEN CUTTINGS. WRAP TWINE AROUND STAKES AND OVER
CUTTINGS TIGHTLY. DRIVE STAKES FURTHER TO TIGHTEN TWINE AND SECURE CUTTINGS TO SLOPE.
4. FILL VOIDS BETWEEN CUTTINGS WITH LOOSE TOPSOIL. SEED AND MULCH SURFACE.
5. INSTALL EROSION CONTROL MATTING OVER TOPSOIL, USING 18" LONG MATTING STAKES.
6. PLACE STONE TOE OVER END OF MATTRESS AND MATTING.
1
BRUSH MATTRESS STAKE
OIR MATTING W/ MATTING STAKES
2" TOPSOIL BRUSH MATTRESS STAKE
LIVE CUTTINGS
TWINE
6'
SECTION
BRUSH MATTRESS
STONE TOE: MIX OF CLASS 1
RIPRAPAND ON -SITE COBBLE
AND GRAVEL
Y BASE FLOW
STREAM BED
1' MIN.
LIVE CUTTINGS, SLIGHT
CRISS-CROSS
PATTERN, MIN. 15 STEMS PER
SQUARE YARD
NTS
12" COIR LOG ANCORED
W/ 18" WOODEN STAKES
NOTE 1.
11—
BASE FLOW
HARDWOOD
FOUNDATION LOG
LIVE STAKES AT 3' O.C.
COIR MATTING, 780 G/M2
ANCHORED WITH ECOSTAKES EXISTING
OR APPROVED EQUAL GROUND
BANKFULLEL. / -
COMPACTED SOIL
WITH 3-5% ORGANICS
ROOTWADS AND DENSELY PACKED
BRUSH; FILL VOIDS WITH ON -SITE
COBBLE AND/OR RIPRAPAS DIRECTED
GEOLIFTS
NTS
—I—I—I-1-
GEOLIFT NOTES:
1. SLOPE 2.5:1 EXCEPT FOR RIGHT BANK AT STA. 16+00 WHERE SPACE LIMITS SLOPE
TO11.
2. TOP OF BRUSH / STONE FOUNDATION TO COINCIDE WITH BASE FLOW WATER
SURFACE. INCLUDE FOUNDATION LOGS PARALLEL TO TOE FACE TO SUPPORT
BRUSH. TEMPORARY WEIGHTS MAY BE NEEDED TO PREVENT LOGS AND BRUSH
FROM FLOATING DURING INSTALLATION.
3. REMOVE SLUMPED AND LOOSE SOIL AND OVEREXCAVATE FOR STONE
FOUNDATION.
4. PLACE ENTIRE LENGTH OF STONE FOUNDATION.
5. ROLL COIR MATTING LENGTHWISE ALONG BANK, LEAVING 2' OF 6.5' ROLL WIDTH
OVER STONE FOUNDATION AND EXTENDING FLAP OF REMAINING COIR MATTING
OVER THE SLOPE.
6. PLACE COIR LOGS ON TOP OF COIR MATTING AND ANCHOR TO SUBGRADE WITH
WOODEN STAKES EVERY 3'.
7. PLACE AND COMPACT 12" LIFT OF CLEAN SOIL OVER COIR AND AGAINST COIR
LOG.
8. APPLY TEMPORARY AND PERMANENT SEED MIX AND STRAW MULCH ON FLAT,
EXPOSED PORTION OF THE LIFT.
9. WRAP REMAINDER OF COIR ROLL WIDTH UP AND OVER COIR LOG AND STAKE
COIR MATTING WITH WOODEN STAKES EVERY 3'.
10. REPEAT STEPS 5 THROUGH 9 TO REACH THE TOP OF BANK. RIFFLE SECTIONS
RECEIVE THREE LIFTS AND POOL SECTIONS RECEIVE FOUR LIFTS.
11. INSTALL LIVE STAKES DURING DORMANT SEASON, DECEMBER THROUGH MARCH.
a_
LI
0
DESCRIPTION
0
0
REVISIONS
rrs)E443tii.141,-fr
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DATE: MARCH 2021
SCALE: AS SHOWN
BIOENGINEERING
DETAILS
SHEET 14 OF 16

RIPARIAN SEED MIX
Seeding Rate = 20 lb/acre
Mulching: wheat or oat straw mulch applied at 2 tons/acre
Common Name
Scientific Name
Percentage
Deer Tongue
Panicum clandestinum
20
Big Bluestem
Andropogon gerardii
20
Virginia Wildrye
Elymus virginicus
20
Indiangrass
Sorghastrum nutans
20
River Oats
Chasmanthium latifolium
20
BARE ROOT TREE AND SHRUB PLANTING
COMMON NAME
SCIENTIFIC NAME
SPACING
(FEET)
Tulip Poplar
Liriodendron tulipifera
12-18
Sycamore
Platanus occidentalis
12-18
Tag Alder
Alnus serrulata
8-12
Ninebark
Physocarpus opulifolius
8-12
Witch -hazel
Hamamelis virginiana
8-12
River Birch
Betula nigra
12-18
Bitternut Hickory
Carya cardiformis
12-18
TEMPORARY SEED MIX
Application Dates
Common Name
Scientific Name
Rate (lb/acre)
Applied
Separately
Rate (lb/acre) Applied
w/ Riparian Mix
August 15 to May 1
Rye Grain
Secale cereale
120
60
May 1 to August 15
Pearl Millet
Pennisetum glaucum
40
20
1 SEED MIXES AND BUFFER PLANTING
15_ NTS
MIN. 2 NODES ABOVE GRADE
I I I-1I I -I I I-1I*/ HARD SOIL OR STONE MAY
11=1 1=1 1=1 1=1 I I 7‘11
BE PRESENT SEE NOTE 1
ICI —ICI —ICI —III —III 2' TO FIRST ROW
-III-III-111=1 -1 I III
NOTES:
1. FORM PILOT HOLE THROUGH HARD SOIL OR STONE TO
PREVENT DAMAGE TO STAKE.
2. LIVE STAKE MIX TO INCLUDE AT LEAST TWO OF THE
FOLLOWING SPECIES: SILKY DOGWOOD, SILKY WILLOW,
ELDERBERRY, NINEBARK, BUTTONBUSH.
3' IN DIAMOND PATTERN
* BASEFLOW W.S.
1� �1�� ���:=
LIVE STAKE
3 NODES MIN.
SECTION
I I I —I I I-111=111
=111=111= i'—
2 \ LIVE STAKING
15 NTS
24" MIN.
TOP CUT AT 15°
AFTER
INSTALLATION
BUDS POINTED
UPWARD
— 1 /2" TO 2"
BASE CUT
AT 45 DEG.
LIVE STAKE DETAIL
FOOTER BOULDER
30' +/-
PLAN
-0
O
BACKFILL WITH ON -SITE
GRAVEL AND COBBLE
3' MEDIAN AXIS
HEADER BOULDER
TOP OF BANK
ANCHOR 4' MIN.
INTO BANK
DESIGN THALWEG
4% SLOPE
PROFILE A -A'
HEADER BOULDER
BACKFILL W/ ON -SITE
GRAVEL AND COBBLE
NON -WOVEN 2
FILTER FABRIC
L- 1
FOOTER BOULDER
1.2'
FOOTER BOULDER
__r1' MIN.
1' MIN.
_ RIBBED
SECTION B-B'
3 \ BOULDER VANE
15
NTS
d
d
w
0
DESCRIPTION
0
REVISIONS
0
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DATE: MARCH 2021
SCALE: AS SHOWN
DETAILS
SHEET 15 OF 16

d
d
MATTING SHALL BE
780 G/M2 COIR
STEEL T-POST
FILTER FABRIC
WITH WIRE BACKING
COMPACTED BACKFILL
RUNOFF
—III--III
TOP OF BANK
1' MIN.
4.
REMOVE ALL DEBRIS,
SCARIFY SURFACE, PLACE
TOPSOIL AND SEED/MULCH
BEFORE PLACING MATTING
CREEK
SIDE
24" MIN.
SECTION
MATTING PLACED FLUSH WITH BANK SURFACE, LAP
OVER DOWN STREAM / DOWN SLOPE SEAMS
12" WOOD STAKE PLACED IN
3' O.C. DIAMOND PATTERN
MATTING ANCHORED 1'
(i\ COIR MATTING
16. NTS
BELOW STREAM BED
\Mr\\"\x"1
FILTER FABRIC WITH
WIRE BACKING
PROFILE
NOTES:
1. SILT FENCE SHALL BE PLACED ON RIVER SIDE
OF ALL STOCKPILES.
2. SILT FENCE SHALL BE REMOVED UPON
COMPLETION OF EARTHWORK.
3. WIRE BACKING SHALL BE 14 GAUGE WITH
MAXIMUM MESH SPACING OF 6".
4. IMMEDIATELY REPLACE DAMAGED FABRIC.
5. REMOVE ACCUMULATED SEDIMENT BEFORE
HALF OF THE SILT FENCE CAPACITY IS
REACHED.
SILT FENCE
NTS
PROP. EDGE OF
STONE/BRUSH TOE
WORK AREA
EXISTING EDGE
OF WATER
`_______________________
BOULDERS OR CLASS 1 RIPRAP FOR
IN -STREAM STRUCTURE TEMPORARILY
PLACED AS FLOW DIVERSION
FLOW DIRECTION / THALWEG
PLAN
TEMP. ROCK FLOW DIVERSION
16 NTS
R=10'
9 MIN. THICKNESS
CLASS A STONE
12' MIN.
ROAD/DRIVEWAY
50' MIN.
NOTES:
1. INSPECT PAD WEEKLY AND AFTER HEAVY
RAINS OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE
AND RUNOFF CONTROL. ADD DIVERSION AS
NEEDED TO KEEP RUNOFF ON -SITE.
3. TOPDRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMETN
TRACKED OR WASHED ONTO PUBLIC ROAD.
5. IMMEDIATELY REPAIR ANY BROKEN ROAD
PAVEMENT.
CONSTRUCTION ENTRANCE/EXIT
NTS
w
0
DESCRIPTION
m
0
REVISIONS
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DATE: MARCH 2021
SCALE: AS SHOWN
E&S
DETAILS
SHEET 16 OF 16