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MORSE PARK M N NG/-)REDGE
PERM IT MOD F CAT ON
BPOWN CONSULTANTS, PA
ZJ BEN LIPPEN SCHOOL RD SUITE 202
ASHEVILLE NC 28806
PHONE: [phone] FAX:
828.350.7684
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MAGNETIC
FOR
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PERMIT NO.: 81-10
PREPARED FOR:
Town of Lake Lure
P.O. Box 255
Lake Lure, North Carolina 28746
Phone: [phone]
Contacts: Ron Nalley, Town Manager
Dean Givens, Director of Lake Operations
SOIL EROSION AND SEDIMENT CONTRO1410TES:
1. Provisions to prevent erosion of the soil from the site shall conform
to the requirements of the "North Carolina Sedimentation Pollution
Control Act of 1973" as shown herein and stipulated in the "Erosion
and Sediment Control Planning and Design Manual" by various
agencies within the State of North Carolina. Installation shall be in a
manner so as to minimize erosion of the disturbed areas and prevent
sediment from leaving the site.
2. All disturbed areas to be grassed as soon as construction phases
permit. The erosion control measures detailed hereon shall be
continued until permanent drainage structures have been installed and
until vegetation on planted shoulders and slopes is scfficiently
established to be (ineffective erosion deterrent. The sediment -
removed from the control structures shall be evenly distributed
outside construction limits. Disposed sediment shall 5e permanently
grassed.
3. Temporary and permanent vegetative cover shall be installed in
accordance with the requirements of chapter 6, section 10 and 11 of
the "Planning and Design Manual" as described in note no. 1 above.
4. The contractor shall not restrict the use of silt fences or any other
means of erosion control to the locations shown on these plans.
Moreover, the contractor should constantly be aware of minimizing soil
erosion and use erosion control means accordingly. The contractor
shall promptly repair, improve or add erosion control measures as.
required by the local reviewing agency.
5. Divert all runoff to the erosion control devices shown on the drawings.
6. Sediment and erosion control measures and practices to be inspected
daily. Devices shall be maintained so they function properly at all
times.
7. Disturbed areas left Idle for five (5) days, and not to final grade, will
be established to temporary vegetation. Disturbed areas left idle for
two weeks or more will be established to permanent vegetation. All
areas to final grade will be established to permanent vegetation
immediately upon completion.
S. Erosion and sediment control devices must be installed and inspected
prior to any grading on site. Please call the appropiate permitting
agency with enough lead time for an inspection to rneet your
schedule.
9. Additional sediment control measures may be required by the
appropriate permitting agency.
10. The escape of sediment from the site shall be prevented by the
installation of erosion control measures and practices prior to, or
concurrent with land -disturbing activities.
11. Maximum cut and fill slopes shall be two (2) foot horizontal to one
(1) foot vertical.
12. Erosion control measures will be maintained at all times. If full
implementation of the approved plan does not provide for effective
erosion control, additional erosion and sediment control measures
shall be implemented to control or treat the sediment source.
13.When hand planting, mulch (hay or straw) should beuniformlyspread
over seeded area within 24 hours of seeding.
14. Mulch will be used as a temporary cover. On slopes that are greater
than 2:1 mulch, if used, will be anchored.
15. Land Disturbance Permit must be displayed on site at all times during
construction and in plain view from a road or street.
16. Sediment/erosion control devices must be checked ai�ter each storm
event. Each device is to be maintained or replaced �I, f sediment
accumulation has reached one half the capacity of tale device.
Additional devices must be installed if new channels have developed.
PROJECT DESCRIPTION
The purpose of this project is to redesign
and improve an existing dredge disposal
site located in Lake Lure, NC.
24—HOUR EMERGENCY CONTACT:
Dean Givens
828.447.1825
BEFORE YOU EAGI
CALL 1-800-632-4949
N.C. ONE -CALL CENTER
ITS THE LAW[
BROWN CONSULTANTS, PA
30 BEN LIPPEN SCHOOL RD SUITE 202
ASHEVILLE NC 28806
PHONE: [phone] FAX:
828.350.7684
DESCRIPTION SHEET NO.
Cover 1
Overall Plan 2
Plan & Cross Sections 3
Reclamation Plan 4
Erosion Control Details 5
REVISION AND]SHEET NO. DESCRIPTION DATE
ISSUE NO.
1. 1 4 1 Added per 3/7/2017 Comments April 2017
Morse Park Mining/Dredge
Permit Modification
for
Town of Lake Lure
Rutherford County, NC
INFORMATION BLOCK
REF:
PERMIT NO.:
81-10
RECEIVED
APR 18 2017
LAND IIUALIT'r
MINING PROPQ , ,%`'
BROWN CONSULTANTS, PA po
30 BEN LIPPEN SCHOOL RD
SUITE 202 ASHEVILLE NC
28806
PHONE: 828,., 350.7683
FAX: [phone]
Project No. 160C-36 Date: JANUARY 2017
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DB ..DEED BOOK
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1010
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2+ 3+00 4+00 5+00 6+00 7+00 8+00
f I -
--- r- --
I ,
i
I 1010
-TOP OF
_. I.
EX BERM
POST TO OF
CON
EX BER
,
I- CONDITIONS ;BASINS�R)BE SEEDEDP�RI��CONDI'hONSNCDE SPEGIFIGATIGfd k,\\� _ _/ AFTEREDGE/MININ // �i�p�/����:. 1000
_..
PR7C�SS IS COMPL \ \.
.. I > BASINS TO B -.SEEDED PER /V
-
/ ' / /
SPECIFICATION � NCDENR i
/
/ / \
/ AFTER DR GE MINING �-r� � r-�`�/ FTE D /
/ T� / /i
�� PROCESS I OOMPLETE._. I \`.i.7• �
MM'� - I..__�/ I /.\Z'n990
.j._-- -- - - ----" -- ----- T----
---------- - 980
SECTION A ,
L • dQRIZ. SCALER' = 50, 4 Af
VERT, SCALE:1" - 10`
970
I
I
LL=GEND:
O EXISTING IRON REBAR (EIR)
EXISTING IRON PIPE (EIP)
❑ TEMPORARY BENCH MARK
qh UTILITY POLE
A, GUY WIRE ANCHOR
LIGHT POLE
+ SPOT ELEVATION
` DECIDUOUS TREE (SIZE AND TYPE AS NOTED)
BOUNDARY LINE (APPROXIMATE)
EDGE OF WATER
C/L STORM DITCH
— OHU— OHU— OVERHEAD UTILITY LINE
.—FEMAFLOODLINE
- --INDEX CONTOUR LINE
--- INTERIM CONTOUR LINE
----- x7(1 - ---- SILT FENCE
ABBREVIATIONS:
NTS... NOT TO SCALE
(T) TOTAL
DB DEED BOOK
PB. PLAT BOOK
PG .PAGE
CONC... CONCRETE
ORN.. ORNAMENTAL
CMP... CORRELATED METAL PIPE
PIN... PARCEL IDENTIFICATION NUMBER
NAD... NORTH AMERICAN DATUM
NAVD..: NORTH AMERICAN VERTICAL DATUM
NSRS... NATIONAL SPATIAL REFERENCE SYSTEM
0+00 1+00 2+00
I
1010 I 101D
-- -- — -
BASINS TO BE SEEDED PER - i TOP OF - -i
- _.. Y - - - --1 NCC..ENR SPEC FICATION-
EX. BERM
.----._...._....._. ... _....T.OP_OF----- AFT ER DRIED INING
EX -BE PROCESS IS C MPLETE
-----�
11
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1000 yx1r�i, 1000 I
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I
EX. GRA DE (TYP.) -
980 980
B
---
SECTION
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I
IHORIZ. SCALE - --" --....
VERT. SCALE.}: = 10 I
0' 50, 100, 150'
30 BEN LIPPEN
SCHOOL RD SUITE 202
ASHEVILLE NC 28806
PHONE; 828.350.7683
FAX: [phone]
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4 OF 5
FILE NAME:16066-01.dwg

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4"
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if
if
--4G� R �/
ac aT %/�•
ISQMETRfC VIEW
i
r ONGTU01tyj ANCHOR TRENCH
INITIAL CHANNEL ANCHOR TRENCH INTERMITTENT CHECK CLOT
11... SLOPE SURFACE SHALL BE FREE OF ROCKS CLODS, STICKS NOTES:
AND GRASS. MATS / BLANKETS SHALL HAVE GOOD SOIL CONTACT. 1. CHECK SLOTS TO BE CONSTRUCTED PER MANUFACTURE'S. SPECIFICATIONS.
2 APPLY PERMANENT SEEDING BEFORE PLACING BLANKETS. 2. .STAKING OF STAPLING. LAYOUT PER MANUFACTURES SPECIFICATIONS.
3: LAY BLANKETS LOOSELY AND STAKE OR .STAPLE TO MAINTAIN
DIRECT CONTACT WITH THE SOIL. DO NOT STRETCH.
ROLLED EROSION CONTROL PRODUCTS
N.T.S.
1) MAJOR ELEMENTS
GROUND
STABILIZATION
3) MAJOR ELEMENTS DISCHARGES 7D FEDERALLY -LISTED WATERS
7) MAJOR ELEMENTS BULLING WASTES
HANDLING
the permit.
A I A
Requirements are some as previous
No point or liquid wastes in stream or
e perml a ows re uc Ion from a acre minimum r e Director
of DWQ determines that other BMPs provide equivalent protection.
DECRIPTION.
FRAME
- storm drains
Oecdtcated areas for demolition, construction
PERIMETERDIKES
7 DAYS
NONE
4 MAJOR. ELEMENTS INSP CTIONS
and other wastes located 5from strum
,SWALES,DITCHES
drains and streams unless no reasonable
alternatives are available.
Some weekl inspection re uirements
AND Rfr)Prl�
Some rain ra e & ins ections after 0.5" rain event.
HIGH QUALITY WATER
(HOW) ZONES
7 DAYS
NONE
Inspections are only required during "normal business hours"
Earthen -material stockpiles must be
located 50' from strom drains and
streams unless no reasonable alternatives
7 DAYS
If slopes bra. 10` or less in
R
Inspection reports must be available on -site during business
SLOPES STEEPER
length and are not steeper
ecific exam tian is a roved.
hours unless a site-s
available.
THAN 3:1
than 2:1, 14days are
Records must be kept for 3 years dfld available upon request.
Cold
must controlled to
allowed
£Isctronically-avoilable records may e substituted under
avoi
contactete
with w
contact with suface waters, wetlands,
or buffers.
SLOPES 3:1
14 DAYS
7-Days for slopes greater
OR
than 5Q fast in
certain conditions.
ri A, Irm
All OTHER AREAS
None (except for perimeters
5) MAJOR ELEMENTS IMPLEMENTATION. F NEW PERMIT CONDITIONS
MAJOR ELEMENTS SEDIMENT BASINS
Projects permitted under the previous permit can continue to follow
WITH SLOPES
r14 DAYS
and HOW Zones)
FLATTER THAN 4:1
the reviousl - ernnuf ed conditions.
Complete applications received prior o August 3,201 t can follow
Outl
sur
t structures must withdraw from basin
ce unless drainage area is lessthan 1
2) MAJOR ELEMENTS
BUILDING WASTES
HANDLING
conditions of a proved application
acre.
No liquid Pint or li Wastes in stream or storm drains
p 9
pp rca Ions receive a er ugus mustcomply w new a only DWO-approved flocculonts
ermit conditt ns.
6 MAJOR ELEMENTS CONDITIONS IN E SON &SEDIMENTATION
Dedicated areas for demolition, Construction and other
Wastes must be located 50' from Strom drains and
CONTROL PLAN
Designation on the plans where the and 14-day ground
StF ari'IS Unless n0 8a ono i alternativ S aV011 1
stabilization uirement of the E rmit
o comp y wi K e
Earthen -material stockpiles must be located 50 from
esrgra ion on pans were awns
suface-withdrawal req uiements of NPDES permit are located.
Strom drains and streams unless no reasonable
alterootlyes available.
t_ T
Concrete materials must be controlled to avoid
NOTES (CONT)�
DEFINITION
A PERMANENT VEGETATIVE COVER USING GRASSES, TREES, OR SHRUBS.
- SEEDED PREPARATION: NOT REQUIRED WHERE HYD
LIC SEEDING AND FERTILIZING
EQUIPMENT IS TO BE USED. WITH CONVENTIONAL SEBBW,
ING. NO -TILL SEEDING, WITH
PUTT O
APPROPRIATE EQUIPMENT, IS PERMISSIBLE INTO ANNUAL COVER CROPS IF THE PLANTING
STAND
IS DONE AFTER THE COVER CROP HAS MATURED OR
IF THE TEMPORARY COVER
- REDUCE RUNOFF, EROSION, AND SEDIMENTATION
IS SPARSE ENOUGH TO ALLOW ADEQUATE GROWTH OF THE PERMANENT SPECIES.
- IMPROVE AESTHETICS
- IMPROVE TILTH AND ORGANIC MATTER
- SLOPE / SEEDBED
- REDUCE. DOWNSTREAM COMPLAINTS
3:7 OR FLATTER 4"-6';
DEPTH
-. REDUCE LIKELIHOOD OF LEGAL ACTION
- REDUCELIKELIHOOD OF WORK STOPPAGE DUE TO LEGAL ACTION
31 TO 2:1 / 1 "-4"
DEPTH _
- INCREASE "GOOD NEIGHBOR" BENEFITS
2:1 OR STEEPER / HAND. TQOLED PffS OR '
TREN
ES, 6"-8" APART'
INSTALLATION
�--
--_
METHODS IF POSSIBLE
S CONVENTIONAL PLANTING- i. U ETAKE
SAMPLES FROM SEVERAL AREAS ON SIT
SOIL SAM
CHEMICAL
FOR EFFICIENT H
2. APPLY ACCORDING TO APPROVED PLAN
APPLICATION AND OPTIMUM PLANT HEALTH. IN THE
ABSENCE 0F SOIL ANALYSIS REPORTS,
3.. CHECK THE TAG ON THE BAG OF SEED TO VERIFY TYPE AND GERMINATION OF THE
APPLY AGRICULTURAL LIME AT THE RATE OF 1 TO 2
TONS PER ACRE, A MAINTENANCE
SEED TO BEPLANTED AND THE DATE OF THE TEST.
APPLICATION OF 1 TON OF AGRICULTURAL LIME IS
REQUIRED EVERY 4 TO 6 YEARS.
4. SCARIFY, PIT OR TRENCH SEALED OR CRUSTED. SOIL.
- MULCH IS REOUIRED ON ALL SLOPES STEEPER TH.
N 3 PERCENT, IN THE BOTTOM OF
5. FERTILIZE BASED ON SOIL TESTS OR AS SHOWN IN TABLE.
SPILLWAYS, ON ROADBANKS, AND WHEN SEEDING I
DONE TOO LATE IN THE FALL OR
6. APPLY AGRICULTURAL LIME AS. PRESCRIBED BY SOIL TESTS OR AT A RATE OF 1 TO 2
WINTER FOR QERMINATION TO BE EXPECTED BEFO
SPRING.
TONS PER ACRE.
CYCLONE SEEDER DRILL 0 HYDRO -SEEDER. SEED PLANTED
7: APPLY SEED BY HAND, L NE " R
MATERIAL! / SEED
ED
WITH A DRILL SHOULD BE PLANTED 1/2"-l" DEEP.
DRY STRAW / 2_TO "PER
ACRE
-'
8, IRRIGATION SHOULD BE USED TO SUPPLEMENT RAINFALL, BUT NOT 70 THE EXTENT TO
HAY / 2 2. .TONS
PER ACRE
CAUSE EROSION.
_DRY
---�-� --
WOOD CELLULOSE OR 0.5 T
/
YS PER ACRE
WOOD PULP FIBER (WHE
SLOPE = 0.75:1)
MAINTENANCE..
• RE -SEED AREAS WHERE AN ADEQUATE STAND OF PERMANENT VEGETATION FAILS TO
SERICEA LESPEDEZA HAY / J TO
PER ACRE
EMERGE OR WHERE A POOR STAND EXISTS.
(WITH MATURE SEED)'
SPRING AS REQUIRED."-"-
• APPLY FERTILIZER IN LATE FALL AND EARLY 1PINE
-
STRAW OR BARk / EQUI
"
ENT TO 3 DEPTH
. APPLY ONE TON OF AGRICULTURAL LIME AS INDICATED. BY SOIL TEST OR EVERY 4-6'
- --- --
----------
YEARS,
• MOW AS DESIRED, HOWEVER MOW SERICEA LESPEDEZA ONLY AFTER FROST TO ENSURE
NOTE SOIL RETENTION BLANKETS, EROSION CONTROL
MATERIALS OR BLOCK SOD MAY BE REQUIRED IN A D
VETTING, OTHER MANUFACTURE
ION TO MULCH ON UNSTABLE SOILS
SEED ARE MATURE.
AND CONCENTRATED FLOW AREAS,
• MAINTAIN 6".OR MORE OF TOP GROWTH,
ANCHOR STRAW OR HAY MULCH IMMEDIATELY AFTER
PLICATION WITH ONE OF THE
FOLLOWING METHODS:
NOT S
- SPRAY WITH EMULSIFIED ASPHALT
- CRITICAL AREA: DISTURBED LAND THAT IS EITHER HIGHLY ERODED OR HIGHLY ERODIBLE.
-. PRESS INTO THE SOIL WITH A ROLLER. PACK
q DISK, ETC.
ATYPICALLY ADJACENT TO NATURAL AREAS, LESS FORMAL AND HAVING LOWER
- APPLY SYNTHETIC 7ACKIFIERS OR BINDERS
MAINTENANCE REQUIREMENTS THAN GRASSED LAWN AREAS. (EXAMPLES: CUT OR FILL
- ADD 'RYE OR WHEAT SEED TO FALL AND WIN
PLANTINGS
SLOPES, EARTH SPILLWAYS, BORROW AREAS, CHANNEL BANKS, BERMS, ROADSIDES, SPOIL - INSTALL i"X1" MESH NETTING
AREAS, GULLIED LANDS, ETC.)
- GRADING AND SHAPING REQUIRED WHERE FEASIBLE AND PRACTICAL.
WOOD CELLULOSE AND WOOD FIBER MULCH IS SELF
CHORING.
-
SEEDING MIXTURE
STEEP SLOPES (STEEPER THAN 3:1)
AVERAGE SOILS
TALL FESCUE
SERICEA LESPEDEZA
KOREAN LESPFDEZA
REDTOP
KENTUCKY BLUEGRASS
ROCKY, ROUGH,
& DRY SOILS
TALL FESCUE
CROWN VETCH
KOREAN. LESPEDEZA
RFDTOP
GENTLE SLOPES L11 OR LESS)
AVERAGE SOILS
TALL FESCUE BLEND EQUi
PARTS OF TWO OR MORE
TURF -TYPE TALL FESCUES
ROCKY, .ROUGH,
& DRY SOILS
TALL FESCUE
CROWN VETCH
KOREAN LESPEDEZA
EDDNG SCHEDULE
_
RATE
(LB/ACRE)
_
FERTILIZER TYPE
& RATE
RECOMMENDED
PLANTING DATES
NURSEPI
REQU'
100
5-10-10 0
1,000 LB/AC.
JULY
MAR
15 -
i -
SEPT 15
MAY 15
YES
120
10
5
5
40
5-10-10 0
1,000 LB/AC.
JULY
MAR
15 -
i -
SEPT 15
MAY 15
YES
10
_10
-.5
200-250
10-10-10 0
1,200 LB/AC.
JULY
MAR
15 -
1 -
SEPT 15
MAY 15
NO
40
,.
5-10-10 0
1,000 LB/AC.
JULY
MAR
15 -
1 -
SEPT 15
MAY 15
YES
10
-10
5
175-200
....
- -
JULY
MAP
15 -
1 -
SEPT 15
MAY 15
YES
PERMANENT SEEDING,
N.T.S.
NURSE PLANTS
- BETWEEN MAY 1 AND
AUG 15, ADD 10
LB/ACRE GERMAN MILLET.
- PRIOR 70 MAY i OR
AFTER AUG 15, ADD 40
LB/ACRE RYE (GRAIN).
DEFINITION
ROUGHEMNG A BARE SOIL SURFACE WITH HORIZONTAL GROOVE RUNNING ACROSS THE
SLOPE, STAIR STEPPING,. OR TRACKING WITH CONSTRUCTION EQUIPMENT.
PURPOSE
- REDUCE RUNOFF, EROSION, AND SEDIMENTATION.
- AID ESTABLISHMENT OF VEGETATIVE COVER FROM SEED.
- REDUCE RUNOFF VELOCITY.
- INCREASE INFILTRATION
INSTALLATION
REQUIRED BMPS FIRST.
- NSTALL 1L OTHERQ A
- SURFACE ROUGHEN ALL SLOPES STEEPER THAN 3:1
MAINTENANCE
- INSPECT AFTER HEAVY RAINS FOR EROSION
O
NOTE USE DOZER TRACTS '
TO CREATE GROOVES
PERPENDICULAR TO SLOPES.
F
SURFACE ROUGHENING
N.T.S.
DEFINITION
A SILT FENCE AND ROCK DAM AT A CULVERT INLET.
PURPOSE
PREVENT SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEM.
INSTALLATION
- INSTALL ACCORDING TO APPROVED PLAN.
- PLACE SILT FENCE IN A SQUARE WITH SIDE LENGTH EQUAL TO PIPE DIAMETER.
- PLACE A MINIMUM OF 12" OF WASHED STONE ON THE EXTERIOR OF THE SILT
FENCE.
MAINTENANCE
• INSPECT WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT AND REPAIR
IMMEDIATELY.
DI
f(57 WASHED u_
STONE
SILT FENCE
CULVERT INLET PROTECTION
N.T.S.
DEFINITION
VEGETATIVE COVER WITH FAST G
A TEMPORARY VEGET ROWING SEEDING FOR UP TO A
12-MONTH PERIOD OR UNTIL PERMANENT VEGETATION IS ESTABLISHED.
PURPOSE
- REDUCE RUNOFF, EROSION, AND SEDIMENTATION
IMPROVE AESTHETICS
- IMPROVE TILTH AND ORGANIC MATTER
INSTALLATION
1. INSTALL ALL EROSION CONTROL MEASURES PRIOR TO APPLYING TEMPORARY
VEGETATION.
2. GRADING AND SHAPING ARE NOT REQUIRED IF SLOPES CAN BE PLANTED WITH A
HYDROSEEDER OR BY HAND SEEDING.
3. SEEDBED PREPARATION IS NOT REQUIRED IF SOIL IS LOOSE AND NOT SEALED BY
RAIN.
4. WHEN THE SOIL IS SEALED OR CRUSHED, IT SHOULD BE PITTED, TRENCHED OR
SCARIFIED TO PROVIDE A PLACE FOR SEED TO LODGE AND GERMINATE.
5. APPLY AGRICULTURAL LIME AT RATES RECOMMENDED BY SOILS REPORT OR A
MINIMUM OF 1500 LBS/ACRE.
6. FERTILIZE LOW FERTILITY SOILS BY ADDING AN MIXING INTO SOIL PRIOR TO
PLANTING AT THE RATE OF 500-700 POUNDS PER ACRE OF 10-10-10 FERTILIZER
OR EQUIVALENT.
7. IT IS IMPERATIVE THAT YOU CHECK THE TAG ON THE BAG OF SEED TO VERIFY
TYPE AND GERMINATION OF THE SEED TO BE PLANTED.
B. APPLY SEED BY HAND, CYCLONE SEEDER, DRILL OR HYDRO -SEEDER. SEED
PLANTED WITH A DRILL SHOULD BE PLANTED 1/2" TO 1' DEEP.
MAINTENANCE
• RE -SEED AREAS WHERE AN ADEQUATE STAND OF TEMPORARY VEGETATION FAILS TO
EMERGE OR WHERE A POOR STAND EXISTS,
TEMPORARY SEEDING SCHEDULE
DATES
SEEDING MIXTURE
RATE (LB./ACRE)
FEB. 1 - MAY 15
RYE (GRAIN)
120
ANNUAL LESPEDEZA
50
MAY 15 - AUG. 15
GERMAN MILLET
40
AUG. 15 - DEC. 31
RYE (GRAIN)
120
NorES
-SEEDING DATES MAY NEED 70 BE ALTERED TO FIT TEMPERATURE VARIATIONS AND
LOCATION CONDITIONS.
- UNUSUAL SITE CONDITIONS MAY REQUIRE HEAVIER SEEDING RATES.
- SEEDINGS FOR JANUARY AND FEBRUARY FOLLOW NCDENR RECOMMENDATIONS
- USE "MULCHING" WHERE NO TEMPORARY VEGETATION IS AVAILABLE.
- MULCH: 25 TONS OF HAY OR STRAW PER AERE (IF NECESSARY).
TEMPORARY SEEDING
N.T.S..
SECURLY ATTACH
FABRIC TO POST
-FILTER FABRIC WOVEN WIRE FENCE
BEHIND FABRIC
DIG 6"X6" DITCH -�
LAY IN FABRIC AND
COMPACT SACKFILL
DRIVE POST 2 FEET
INTO GROUND
STEEL POST FILTER FABRIC
WIRE FENCE
6" MIN.
....-EI.QN'
MIN,
2�„
CROSS-SECTION
DEFINITION
A TEMPORARY STRUCTURE MADE OF SILT FENCE SUPPORTED BY STEEL POSTS.
PURPOSE
- SLOW THE VELOCITY OF RUNOFF AND CAUSE SEDIMENT DEPOSITION AT THE STRUCTURE.
STEEL
-. FILTER SEDIMENT FROM RUN-OFF.'I
POSTS
INSTALLATION
- INSTALL ACCORDING TO APPROVED PLAN.
- DO NOT PLACE IN WATERWAYS OR AREA OF CONCENTRATED FLOW.
0
- INSTALL WHERE SHEET FLOW CONDITIONS EXIST.
DRAINAGE AREA NOT TO EXCEED 1/4 ACRE PER 100 FEET OF NON -REINFORCED SILT
FENCE, OR 1/2 ACRE PER 100 FEET OF WIRE -REINFORCED SILT FENCE
18-24"
- VERIFY FABRIC BY INSPECTION OF FABRIC NAME PRINTED EVERY 100 FEET OF SILT
FENCE.
- START INSTALLATION AT THE CENTER OF THE LOWER POINT WITH REMAINING POSTS
SPACED A MAXIMUM OF FEET APART,
MAINTENANCE
- INSPECT BARRIERS AT THE END OF EACH WORKING DAY, OR AFTER EACH RAIN, AND
REPAIR OR CLEAN AS NECESSARY.
- REMOVE SEDIMENT FROM BARRIER WHEN TWO-THIRDS FULL (OR AS INSTRUCTED BY
INSPECTOR).
- REPLACE FILTER FABRIC WHEN DETERIORATED.
- DESIGN LIFE OF A SYNTHETIC SILT FENCE IS APPROXIMATELY 5 MONTHS.
- MAINTAIN UNTIL THE PROJECT IS. VEGETATED OR OTHERWISE STABILIZED.
- REMOVE BARRIERS AND ACCUMULATED SEDIMENT AND STABILIZE THE EXPOSED AREA WHEN
THE PROJECT IS STABILIZED.
NOTES
- POSTS, WOVEN WIRE FENCE, FILTER FABRIC, AND ATTACHMENT DEVICE SHALL MEET THE
REQUIREMENTS OF SECTION 1605 - TEMPORARY SILT FENCE, OF THE DEPARTMENT OF
TRANSPORTATION, STATE OF NORTH CAROLINA, STANDARD SPECIFICATIONS, 2006 EDITION.
- STEEL POSTS SHALL BE A MINIMUM OF 5 FEET LONG, SPACED A MAXIMUM OF SIX FEET
APART.
- FILTER FABRIC SHALL MEET THE PHYSICAL REQUIREMENTS OF THE ABOVE MENTIONED
SECTION AND SHALL HAVE A MINIMUM WIDTH OF 36 INCHES.
- THE FILTER FABRIC SHALL BE INSTALLED WITH A MINIMUM OF 6 INCHES OF THE BOTTOM
BURIED.
- SILT FENCING SHALL BE INSTALLED PRIOR TO ANY GRADING OR CONSTRUCTION.
TEME2 ARY
SILT FENCE
N.T.S.
DEFINITION
A STONE -STABILIZED PAD LOCATED AT ANY POINT WHERE TRAFFIC WILL BE LEAVINQ A
CONSTRUCTION SITE TO A PUBLIC RIGHT-OF-WAY, STREET, ALLEY, SIDEWALK, OR
PARKING AREA.
PURPOSE
O REDUCE OR ELIMINATE THE TRANSPORT F MUD FROM THE CONSTRUCTION AREA..
INSTALLATION
- INSTALL ACCORDING TO APPROVED PLAN.
- USE 1.5" - 3.5" STONE.
- MINIMUM PAD THICKNESS OF 6 INCHES.
- MINIMUM PAD WIDTH OF 20 FEET.
- MINIMUM PAD LENGTH OF 50 FEET.
- EXCAVATE FOCTPRINT 3 INCHES.
- ROUTE RUNOF` FROM WASHING(IF REQUIRED) TO AN APPROVED SEDIMENT TRAP OR
SEDIMENT BASIN.
INSTALL #200 ROAD STABILIZATION FABRIC AS A BASE UNDER STONE.
MAINTE
PERIO ALLY DRESS WITH 1:5" - 3.5° STONE.
. MAINTAIN IN A CONDITION THAT WILL PREVENT TRACKING OR FLOW OF MUD ONTO
PUBLIC RIGr1TS OF WAY.
. IMMEDIATELY REMOVE MUD AND DEBRIS TRACKED OR SPILLED ONTO ROADWAYS.
JR4 POE
Ng0 0,1YOI0
P00
COARSE
AGGREGATE
GEOTEXTILE
UNDERLINER
6" MIN.
THICKNESS
CONSTRUCTION EXIT
N.T.S.
DEFINITION
A TEMPORARY COVER OF PLANT RESIDUES APPLIED TO THE SOIL SURFACE FOR A PERIOD t
SIX (6) MONTHS OR LESS WHEN SEEDING IS NOT PRACTICAL
PURPOSE
- REDUCE RUNOFF, EROSION, AND SEDIMENTATION.
- REDUCE DUST.
- CONSERVE MOISTURE.
- PREVENT SURFACE COMPACTION AND CRUSTING.
- CONTROL UNDESIRABLE VEGETATION.
INSTALLATION
- INSTALL ALL OTHER REQUIRED BMPS FIRST.
- GRADE SITE It- POSSIBLE, TO PERMIT THE USE OF EQUIPMENT FOR APPLYING AND
ANCHORING MULCH,
- LOOSEN COMPACTED SOIL, IF POSSIBLE, TO A DEPTH OF THREE (3) INCHES.
- APPLY STRAW oR HAY UNIFORMLY, BY HAND AN ANCHOR BY PRESSING INTO SOIL OR
USE NETTING.
- MULCH ON SLOPES GREATER THAN 39. SHOULD BE ANCHORED WITH EMULSIFIED ASPHALT
(GRADE AE-5 OR SS -I) OR OTHER SUITABLE 7ACKIFlER.
- WOOD WASTE (W SLOPES FLATTER THAN 3:1 DO NOT NEED ANCHORING.
MAINTENANCE
- INSPECT AFTER HEAVY RAINS FOR EROSION AND DISLODGED MULCH.
- ADD MULCH AS NEEDED TO MAINTAIN THE SUGGESTED DEPTH.
- IF ORGANIC MULCH IS TO BE LEFT AND INCORPORATED INTO THE SOIL APPLY 20 TO 30
POUNDS OF NITROGEN IN ADDITION TO THE FERTILIZER REQUIRED FOR VEGETATION.
MULCHING APPLICATION RATES
MATERIAL
RATE PER ACRE
DEPTH
STRAW OR HAY
1.5 TO 2.5 TONS
6" TO 10"
WOOD CHIPS
5 TO 6 TONS
2" TO 3"
OR FIBERS
BARK
35 CUBIC YARDS.
3" TO 4"
CORN STALKS
4 TO 6 TONS
5" TO 6"
GEOTEXTILES,
JUTE MATTING,
SEE MANUFACTURER'S RECOMMENDATIONS
NETTING, ETC.
MULCHING
N.T.S.
BAFFLES AS REQUIRED
BY BAFFLE DETAIL
DESIGN
SETTLED TOP /
NOTE:
ALWAYS PROVIDE BAFFLES AS
REQUIRED BY BAFFLE DETAIL.
12" MIN. OF NCDOT #5 -
OR #57 WASHED STONE
3600 CU.
FT./ACRE
1.5'
DEFINITION
ANY OUTLET WHERE STORM FLOW BYPASS MUST BE STABLILIZED AGAINST EROSION.
PURPOSE
TO DETAIN SEDIMENT LADEN RUNOFFF.
INSTALLDON
1. PLACE STABILIZED OUTLET EVERY 200' OF SILT FENCE.
2. SET FABRIC HEIGHT AT 1 FT MAXIMUM BETWEEN SUPPORT POSTS SPACED NO
MORE THAN 4 FT APART INSTALL A HORIZONTAL BRACE BETWEEN THE SUPPORT
POSTS TO SERVE AS AN OVERFLOW WEIR AND TO SUPPORT TOP OF FABRIC:
PROVIDE A RIPRAP SPLASH PAD AS SHOWN IN FIGURE 6.62C.
3. EXCAVATE FOUNDATION FOR THE SPLASH PAD A MINIMUM 5 FT WIDE, 1 FT DEEP,
AND 5 FT LONG ON LEVEL GRADE. THE FINISHED SURFACE OF THE RIPRAP SHOULD
BLEND WITH SURROUNDING AREA, ALLOWING NO OVERFALL. THE AREA AROUND THE
PAD MUST BE STABLE,
5' MIN:
NON -EROSIVE OUTLET
N.T.S.
1.5' MIN.
CLASS "B" RIPRAP
5• MAX
FILTER FABRIC
CROSS-SECTION
21" MIN. FLAT BOTTOM EMERGENCY BYPASS 6"
BELOW SETTLED TOP
OVERFILL 6" FOR OF DAM
SETTLEMENT
---.- SPILLWAY (4' MIN.)
3' MIN.
PLAN VIEW
FILTER FABRIC
NATURAL GROUND
- SPILLWAY DESIGN
DRAINAGE
AREA (AC.)
MIN. WEIR
LENGTH (FT.)
1
4.00
2
6.00
3
8.00
4
1000
5
72.00
DEFINITION
TEMPORARY PONOING EMBANKMENT OR EXCAVATION 70 CAPTURE SEDIMENT. A SMALL, TEMP BASIN FORMED BY AN
PURPOSE
TO DETAIN SEDIMENT -LADEN RUNOFF AND TRAP THE SEDIMENT TO PROTECT RECEIVING STREAMS, LAKES, DRAINAGE SYSTEMS, AND PROTECT ADJACENT PROPERTY,
INSTALLATION
CLEAR, GRUB AND STRIP i 7 EMBANKMENT OFF ALL VEGETATION AND ROOT MAT. REMOVE AL SURFACE SOIL CONTAINING IGH AMOUNTS OF ORGANIC MATTER i. EAR HE AREA UNDER HE L SURF C 0 LH
ILE OR DISPOSE AU ALL OBJECTIONABLE MATERIAL 0 THDESIGNATED S AND STOCKPILE SE OF IT PROPERLY. HAUL AT E DISPOSAL AREA.
2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS, WOOD: VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE MATERIAL PLACE. THE. FILL IN LIFTS
NOT TO EXCEED 9 INCHES, AND MACHINE COMPACT IT. OVER FILL THE EMBANKMENT 6 INCHES TO ALLOW FOR SETTLEMENT
CONSTRUCT THE OUTLET S EMBANKMENT. PROTECT THE CONNECTION E T i A G FILTER FABRIC OR A KEYWAY
3. NSTR Q L SECTION IN THE EMBANK R H NN BETWEEN HE RIPRAP AND SOIL FROM PIPING BY USING
CUTOFF TRENCH BETWEEN THE RIPRAP STRUCTURE AND SOIL.
4. CLEAR THE POND AREA BELOW THE ELEVATION OF THE CREST OF THE SPILLWAY 70 FACILITATE SEDIMENT CLEANOUT.
5. MATERIAL USED IN THE STONE SECTION SHOULD BE A WELL -GRADED MIXTURE OF STONE WITH A D SIZE OF 9 INCHES (CLASS B EROSION CONTROL. STONE -IS RECOMMENDED)
U STONE SIZE MACHINE CF:. TO 0 OF THE LARGER STONES. THE STONE
AND A MAXIMUM ZE OF 14 INCHES. THE STONE MAY BE MA H P CED AND THE SMALLER STONES WORKED INTO THE VOIDS
SHOULD BE HARD, ANGULAR, AND HIGHLY WEATHER -RESISTANT.
6. ENSURE THAT THE STONE SPILLWAY OUTLET SECTION EXTENDS DOWNSTREAM PAST THE TOW OF THE EMBANKMENT UNTIL STABLE CONDITIONS ARE REACHED AND OUTLET VELOCITY
IS ACCEPTABLE FOR THE RECEIVING STREAM. KEEP THE EDGES OF THE STONE OUTLET SECTION FLUSH WITH THE SURROUNDING GROUND, AND SHAPE THE CENTER TO CONFINE
THE OUTFLOW STREAM.
EMERGENCY BYPASS AREA RELOCATE BYPASS OUTLETS SO THAT FLOW WILL NOT DAMAGE THE EMBANKMENT. 7. DIRECT EME S TO NATURAL, STABLE S E E B NT
S. STABILIZE THE EMBANKMENT AND ALL DISTURBED AREAS ABOVE THE SEDIMENT POOL AND DOWNSTREAM FROM THE TRAP IMMEDIATELY AFTER CONSTRUCTION.
MAINTENANCE
INSPECT TEMPORARY SEDIMENT TRAPS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (Y2 INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. REMOVE SEDIMENT, AND
RESTORE THE TRAP TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP. PLACE THE SEDIMENT THAT IS
REMOVED IN THE DESIGNATED DISPOSAL AREA, AND REPLACE THE PART OF THE GRAVEL FACING THAT IS IMPAIRED BY SEDIMENT.
CHECK THE STRUCTURE FOR DAMAGE FROM EROSION OR PIPING. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY TO ENSURE IT IS A MINIMUM OF 1.5 FEET BELOW THE LOW
POINT OF THE EMBANKMENT. IMMEDIATELY FILL ANY SETTLEMENT OF THE EMBANKMENT TO SLIGHTLY ABOVE DESIGN GRADE.. ANY RIPRAP DISPLACED FROM THE. SPILLWAY MUST BE
REPLACED IMMEDIATELY.
AFTER ALL SEDIMENT -PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL UNSTABLE SEDIMENT. SMOOTH THE AREA TO BLEND WITH THE
ADJOINING AREAS, AND STABILIZE PROPERLY.
INSIDE DIA. PIPE
REINFORCEMENT
W,
Wz
H,
H�
D
E
4 @ 8" EW
44"
64"
23"
42 1 z
to 1 2
27"
21';24"
#4 8" EW
50"
85"
31'"
50"
24"
33"
27'30" 36"
#4 @ 8" EW
64"'
108"
52"
72"
36"
49"
42",48"
#4 @ 6" EW
79"
150"
52"
79"
1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM.
2. REINFORCEMENT STEEL SHALL MEET ASTM-A615
GRADE 60 WITH 2" MINIMUM CLEARANCE,
3. REINFORCING SHOWN IS TYPICAL IN WALLS AND SLABS,
4. PROVIDE STANDARD. HOOK @ WALL VERT BARS
9 BASE OF WALL.
5. ALL BAR SPLICES SHALL BE CLASS B LAPS.
UNLESS OTHERWISE SHOWN.
PRECAST CONCRETE HEADWALL
NOT TO SCALE
30 BEN LIPPEN
;CHOOL RD SUITE 202
ASHEVILLE NC 28806
'HONE: 828.350,7683
FAX: [phone]
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