SW6240606_Plansheet - Misc. Detail (Swale & Riprap Apron)_20240830

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solutions
civil engineering I land surveying
409 Chicago Drive,Suite 112,Fayetteville,INC 28306
office 1910-426-6777 fax [phone] license number I C-2354
wwwAD site solutions.com
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NOTES SUBGRADE V
CARRY BASE COURSE 6"
1. SECTION SHOWN TO DEPICT TYPICAL CUT & FILL CONDITIONS BEYOND SURFACE COURSE
AT LOCATIONS
ONLY. GRADING PLAN SHOWS WHETHER SECTION IS IN CUT, CURB AND GUTTER TO BE POURED CURB AND GUTTER WITHOUT REVISIONS
FILL OR BOTH IN 10' SECTIONS WITH EXPANSION
JOINTS EVERY 50'
(90' IF MACHINE PLACED)
NTS NTS NTS
1 ROADWAY TYPICAL SECTION 2 30" STANDARD ROLL CURB 3 ASPHALT PAVEMENT
DESIGN CRITERIA
AGGREGATE SIZE-USE 2-3 INCH WASHED STONE
DIMENSION OF GRAVEL PAD
GRAVEL ENTRANCE SHALL BE 50 FEET THICKNESS-6 INCHES MINIMUM
IN LENGTH AND 12 FEET IN WIDTH
WITH 20 FOOT RADIUS AT EXISTING WIDTH- 12 FT.MINIMUM OR FULL WIDTH AT ACCESS
ROADWAY POINTS OF THE VEHICULAR ENTRANCE AND EXIT
36-0"MIN 4'-0" 10'-0" AREA,WHICHEVER IS GREATER
1.UNLESS OTHERWISE INDICATED,ALL VEGETATIVE AND 7.ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT
6- LENGTH- 50 FT.MINIMUM.
STRUCTURAL EROSION AND SEDIMENT CONTROL MEASURES SHALL CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING LOCATION-LOCATE CONSTRUCTION ENTRANCES AND
BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL EXITS TO LIMIT SEDIMENT FROM LEAVING THE SITE
MINIMUM STANDARDS AND SPECIFICATIONS OF THE NORTH STABILIZATION IS ACHIEVED. AND TO PROVIDE FOR MAXIMUM UTILITY BY ALL
FILTER FABRIC CONSTRUCTION VEHICLES. AVOID STEEP GRADES
CAROLINA EROSION AND SEDIMENT CONTROL HANDBOOK. 2-3"WASHED STONE AND ENTRANCES AT CURVES IN PUBLIC ROADS.
8.ALL AREAS DISTURBED BY CONSTRUCTION UNLESS OTHERWISE CONTRACTOR SHALL INSTALL ADDITIONAL GRAVEL
SEEDING SPECIFICATIONS 2.THE CONTRACTOR SHALL NOTIFY PLAN APPROVING AUTHORITY IMPROVED SHALL BE SODDED OR SEEDED AS INDICATED AND GRAVEL CONSTRUCTION ENTRANCE CONSTRUCTION ENTRANCES NOT INDICATED ON THE PLANS
ONE WEEK PRIOR TO THE PRECONSTRUCTION CONFERENCE,ONE STABILIZED. REQUIRED FOR STAGING AND/OR BORROW AREAS AND
WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING MAINTAIN AT NO ADDITIONAL EXPENSE TO THE OWNER.
TEMPORARY SEEDING/MULCHING SPECIFICATIONS(FOR LATE WINTER AND EARLY SPRING) SEEDING MIXTURES: ACTIVITY,AND ONE WEEK PRIOR TO FINAL INSPECTION. 9.DURING DEWATERING OPERATIONS,WATER SHALL BE PUMPED CONTRACTOR SHALL SUPPLEMENT AND MAINTAIN GRAVEL
SEEDING MIXTURE: INTO AN APPROVED FILTERING DEVICE PRIOR TO DISCHARGE TO CONSTRUCTION ENTRANCES AT HIS EXPENSE UNTIL FINAL
SPECIES RATE(LB./ACRE) SPECIES RATE(LBS./ACRE) 3.IF POSSIBLE ALL EROSION AND SEDIMENT CONTROL MEASURES RECEIVING OUTLET. ACCEPTANCE.
RYE(GRAIN) 120 TALL FESCUE 80
ARE TO BE PLACED PRIOR TO CLEARING AND/OR LAND DISTURBANCE. Q /
10.THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL SOP' AA
ANNUAL KOBE LESPEDEZA 50 PENSACOLA BAHIAGRASS 50 4.A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL MEASURES WEEKLY AND AFTER EACH RUNOFF-PRODUCING EVENT. \Cj MAINTENANCE
OMIT ANNUAL LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT EXTEND BEYOND JUNE. SERICEA LESPEDEZA 30 PLAN AND PERMIT SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE J0;
KOBE LESPEDEZA 10 EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE Q / MAINTAIN THE GRAVEL PAD INBA CONDITION TO PREVENT MUD OR
SEEDING DATES: 5.PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS MADE IMMEDIATELY. SEDIMENT FROM LEAVING THE CONSTRUCTION SITE.THIS MAY
JANUARY 1-MAY 1 SEEDING NOTES: OTHER THAN INDICATED ON THESE PLANS(INCLUDING,BUT NOT SQ'm� REQUIRE PERIODIC TOPDRESSING WITH 2-INCH STONE.AFTER EACH
LIMITED TO OFF-SITE BORROW OR WASTE AREAS,STAGING OR 11.ALL TEMPORARY EROSION CONTROL MEASURES SHALL BE n RAINFALL,INSPECT ANY STRUCTURE USED TO TRAP SEDIMENT AND
1.FROM SEPT.1 TO MAR.1 USE UNSCARIFIED SERICEA SEED. STORAGE AREAS),THE CONTRACTOR SHALL PREPARE AND SUBMIT REMOVED BY CONTRACTOR ONCE STABILIZATION OR A SUFFICIENT CLEAN IT OUT AS NECESSARY.IMMEDIATELY REMOVE ALL PROJECT NAME
SOIL AMENDMENTS: 2.ON POORLY DRAINED SITES OMIT SERICEA AND INCREASE KOBE TO 30 LB./ACRE. A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR GROUND COVER HAS BEEN ESTABLISHED OR AS DIRECTED BY THE / OBJECTIONABLE MATERIALS SPILLED,WASHED OR TRACKED ONTO
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB./ACRE GROUND AGRICULTURAL LIMESTONE AND 750 3.WHERE A NEAT APPEARANCE IS DESIRED,OMIT SERICEA AND INCREASE KOBE TO 40 LB./ACRE. REVIEW AND TO NCDENR REGIONAL OFFICE FOR APPROVAL. ENGINEER. NCDENR'S FINAL APPROVAL IS REQUIRED. PUBLIC ROADWAYS.
LB./ACRE 10-10-10 FERTILIZER. CONTRACTOR SHALL PAY ALL FEES REQUIRED AND SHALL INSTALL
NURSE PLANTS: NECESSARY MEASURES AT NO SEPARATE PAYMENT. THE 12.TEMPORARY GRAVEL CONSTRUCTION ENTRANCE SHALL BE
MULCH: BETWEEN APRIL 15 AND AUG.15,ADD 10 LB./ACRE OF GERMAN MILLET OR 15 LB./ACRE SUDANGRASS. PRIOR TO MAY 1 CONTRACTOR SHALL PROVIDE THE OWNER AND THE ENGINEER A REQUIRED AT ALL CONSTRUCTION STAGING AREA ENTRANCES AND VILLAGE AT
APPLY 4,000 LB./ACRE STRAW.ANCHOR STRAW BY TACKING WITH ASPHALT,NETTING,OR A MULCH ANCHORING TOOL. OR AFTER AUG.15,ADD 25 LB./ACRE RYE(GRAIN). COPY OF THE AMENDED PERMIT. ALL CONSTRUCTION ACCESS LOCATIONS INTO NON-PAVED AREA.
A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. 6.THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY 13.WHEN CROSSING CREEK OR DRAINAGE-WAY,THE CONTRACTOR
MAINTENANCE:
SEEDING DATES: BEST POSSIBLE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT SHALL RIP-RAP WITH FABRIC DISTURBED BANKS AND CHANNEL AND AGGREGATE rL�REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED,REFERTILIZE AND MULCH IMMEDIATELY FOLLOWING EARLY SPRING: FEB.15-MAR.20 FEB.15-APR.30 EROSION AND SEDIMENTATION AS DETERMINED BY EITHER NCDENR RESTORE SLOPES TO ORIGINAL CONTOURS,BUT NOT STEEPER THAN 6" MIN.THICKNESS
OR THE ENGINEER. 2:1 MAXIMUM. DISTURBED CREEK AREA SHALL BE STABILIZED
EROSION OR OTHER DAMAGE. FALL: SEPT.1-SEPT.30 SEPT.1-OCT.31 IMMEDIATELY. ROCKFISH
2-3"COURSE
TEMPORARY SEEDING/MULCHING SPECIFICATIONS(FOR SUMMER) SOIL AMENDMENTS: PHASE V
SEEDING MIXTURE: APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST,OR APPLY 3,000-5,000 LB./ACRE GROUND AGRICULTURAL
SPECIES RATE(LB./ACRE) LIMESTONE(USE THE LOWER RATE ON SANDY SOILS)AND 1,000 LB./ACRE 10-10-10 FERTILIZER.
GERMAN MILLET 40 MULCH: NTS
APPLY 4,000 LBJACRE GRAIN STRAW OR COVERA SMALL-STEMMED SUDANGRASS MAY BE SUBSTITUTED AT A RATE OF 50 LB./ACRE. TACKING WITH ASPHALT,NETTING, R ROVVIINIG VALENT OR BY CRIMPINOG WITOHTHER A MULCH ANCHORING TOOL. A DISUITABLE MULCH.ANCHORSK WIITHY (VARIABLE LOT)
SEEDING DATES: BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. 6 GENERAL EROSION AND SEDIMENT CONTROL NOTES 7 TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
MAY 1-AUGUST 15 MAINTENANCE:
IF GROWTH IS LESS THAN FULLY ADEQUATE,REFERTILIZE IN THE SECOND YEAR,ACCORDING TO THE SOIL TESTS OR DRIVE STEEL POSTS 18"INTO THE GROUND ATTACH WIRE FENCE TO POSTS AND EXTEND NOTES:
SOIL AMENDMENTS: TOP DRESS WITH 500 LB./ACRE 10-10-10 FERTILIZER. MOW AS NEEDED WHEN SERICEA IS OMITTED FROM THE MIXTURE. MAXIMUM 8'O.C.AND G THE LINE
A a"x a" THE BorroM of THE FENCE a"INTO THE
TRENCH UPHILL ALONG THE LINE OF EXCAVATED TRENCH AND TURNED OUT
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB./ACRE GROUND AGRICULTURAL LIMESTONE AND 750 RESEED,FERTILIZE,AND MULCH DAMAGED AREAS IMMEDIATELY. POSTS. 4"IN THE TRENCH. 1.WIRE SHALL BE A MINIMUM OF 32 INCHES IN WIDTH AND
LB./ACRE 10-10-10 FERTILIZER. STANDARD METAL POSTS 2'-0" IN GROUND TOP&BOTTOM STRAND SHALL HAVE A MINIMUM OF 6 W1RES WITH 12"STAY SPACING.
MIN.10 GA.WIRE
SEEDING SPECIFICATIONS 2. FILTER FABRIC SHALL BE A MINIMUM OF 36"IN WIDTH AND
MULCH: STEEL POSTS STAY WIRES SHALL BE FASTENED ADEQUATELY TO THE WIRE WITH#9 WIRE
APPLY 4,000 LB./ACRE STRAW.ANCHOR STRAW BY TACKING WITH ASPHALT,NETTING,OR A MULCH ANCHORING TOOL. 19 GAUGE HARDWARE CLOTH (1/4 MIN.12-1/2 GA STAPLES 1-1/2"LONG. FABRIC THAT DETERIORATES TO SUCH
SEEDING MIXTURE: MESH OPENINGS) LINE WIRES EXTENT THAT IT'S EFFECTIVENESS IS REDUCED SHALL BE
A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. N
2-1/2 GA. REPLACED BY CONTRACTOR AT CONTRACTOR'S EXPENSE.
MAINTENANCE: SPECIES RATE(LB./ACRE) 3. STEEL POSTS SHALL BE A MIN.OF S HEIGHT AND SHALL BE
COMMON BERMUDAGRASS 40-80(1-2 LB./1,000 FT2) 4.CONTRACTOR SHALL REVIEW SILTHE SELF FASTENER ANGLE STEEL TY FENCE ONCE PER WEEK SITE & EROSION
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED,REFERTILIZE AND MULCH IMMEDIATELY FOLLOWING �� CONSTRUCTION SPECIFICATIONS
EROSION OR OTHER DAMAGE.
- 1. UNIFORMLY GRADE A SHALLOW DEPRESSION AND AFTER EACH RAINFALL OCCURRENCE.ANY NECESSARY
SEEDING DATES: 1 - APPROACHING THE INLET. REPAIRS OR CLEAN-UP TO MAINTAIN THE EFFECTIVENESS OF
COASTAL PLAIN: APR.-JULY THE DEVICE SHALL BE MADE IMMEDIATELY.
TEMPORARY SEEDING/MULCHING SPECIFICATIONS(FOR FALL) oaf Q 2. DRIVE 5-FOOT STEEL POSTS 2 FEET INTO THE GROUND CONTROL
`0 8 SURROUNDING THE INLET. SPACES POSTS EVENLY AROUND 5.REMOVE DEPOSITED SEDIMENT ALONG THE FENCE TOSEEDING MIXTURE: SOIL AMENDMENTS: I PROVIDE ADEQUATE STORAGE VOLUME AND TO REDUCE
O THE PERIMETER OF THE INLET,A MAXIMUM OF 4 FEET
SPECIES RATE(LB./ACRE) APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST,OR APPLY 3,000 LB./ACRE GROUND AGRICULTURAL LIMESTONE Zio�o _� APART. PRESSURE ON THE FENCE AS NEEDED.
RYE(GRAIN) 120 AND 500 LB./ACRE 10-10-10 FERTILIZER. o� O STEP STEP 5.TEMPORARY MEASURE SHALL NOT BE REMOVED BY THE DETAILS
J '..ccY�• -� 3.SURROUND THE POSTS WITH WIRE MESH HARDWARE CONTRACTOR UNTIL THIS ACTION IS APPROVED BY AN NCDENR
o _
CLOTH. SECURE THE WIRE MESH TO THE STEEL POSTS AT ATTACH THE FILTER FABRIC TO THE WIRE FENCE, BACKFILL THE TRENCH AND COMPACT THE SOIL REPRESENTATIVE.THE ACTION WILL BE APPROVED WHEN THE
MULCH: �p EXTEND THE BOTTOM OF THE FABRIC 8"INTO THE FIRMLY TO ANCHOR THE BOTTOM OF THE SILT
SEEDING DATES: / e THE TOP, MIDDLE AND BOTTOM. PLACING A 2 FOOT FLAP CONTRIBUTING DRAINAGE AREA IS STABLE.
USE JUTE,EXCELSIOR MATTING,OR OTHER EFFECTIVE CHANNEL LINING MATERIAL TO COVER THE BOTTOM OF _� ao o OF THE WIRE MESH UNDER THE GRAVEL FOR ANCHORING TRENCH AND TURNED OUT 4"IN THE TRENCH. FENCE. BURIED FABRIC SHALL NOT BE VISIBLE.
AUGUST 15-DECEMBER 30 CHANNELS AND DITCHES. THE LINING SHOULD EXTEND ABOVE THE HIGHEST CALCULATED DEPTH OF FLOW. ON `�16D�bp�Q 00. 0 ODo IS RECOMMENDED.
CHANNEL SIDE SLOPES ABOVE THIS HEIGHT,AND IN DRAINAGES NOT REQUIRING TEMPORARY LININGS,APPLY 4,000 -�
SOIL AMENDMENTS: - 4. PLACE CLEAN GRAVEL(HT OF 16 OR l57 STONE) ON POSTS MAX 8'O.C.
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB./ACRE GROUND AGRICULTURAL LIMESTONE AND LB./ACRE GRAIN STRAW AND ANCHOR STRAW BY STAPLING NETTING OVER THE TOP. �� A 2:1 SLOPE WITH A HEIGHT OF 16 INCHES AROUND THE
1,000 LB./ACRE 10-10-10 FERTILIZER. 2:1 SLOPE GRAVEL FILTER l 57 WASHED STONE PLACED TO A HEIGHT OF 16" WIRE AND SMOTH TO AN EVEN GRADE. WIRE FENCE"HOG WIRE"
MULCH AND ANCHORING MATERIALS MUST NOT BE ALLOWED TO WASH DOWN SLOPES WHERE THEY CAN CLOG MINIMUM ABOVE TOP OF BOX A FILTER FABRIC
5.ONCE THE CONTRIBUTING DRAINAGE AREA HAS BEEN _
DRAINAGE DEVICES. : ::::....
MULCH: STABILIZED, REMOVE ACCUMULATED SEDIMENT AND +? :;)�;;;;;+i"::'e:?"ti':s .. : . >� < ` :..:.. x #9 WIRE STAPLES I-1/2"LONG
ESTABLISH FINAL GRADING ELEVATIONS. ............ ...... `;? : : ';.;::tJii.i;•`::"ti(i:;tti .
APPLY 4,000 LB./ACRE STRAW.ANCHOR STRAW BY TACKING WITH ASPHALT,NETTING,OR A MULCH ANCHORING TOOL. " :: ..
. ::.:..::::;::::;: :::::: :.:::::.::..:;. ::.:,.:::;::::,::..: CLIENT
f ":E:"`tiEE:3 :; `"• F BOTTOM OF WIRE FENCE AND
MAINTENANCE: >T"'i::>'::::::::#::z;:: �:::::.:::::'°:>:;:;:'s..:+t:::=':..z;::'.:
A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. ::. FILTER FABRIC BURIED 8"IN
A MINIMUM OF 3 WEEKS IS REQUIRED FOR ESTABLISHMENT. INSPECTION AND REPAIR MULCH FREQUENTLY. 6.COMPACT THE AREA PROPERLY AND STABILIZE IT WITH
GROUNDCOVER.
;:!,;;;,.� .::::. w OUTEXC 4"IT EDTRENCH ENCH TURNED
REFERTILIZE THE FOLLOWING APR.WITH 50 LB./ACRE NITROGEN. "`":»�"'iis^;.4;:;.:<:<::::.>.::<::�, :� � our a IN THE TRENCH
MAINTENANCE:
.�I.!.REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOP DRESS WITH 50 LB./ACRE OF NITROGEN IN MARCH. IF SLOW SIDS MILL
IT IS NECESSARY TO EXTEND TEMPORARY COVER BEYOND JUNE 15,OVERSEED WITH 50 LB./ACRE KOBE LESPEDEZA
IN LATE OR EARLY MARCH. STEEL POST DRIVEN
24"INTOGROUND PROPERTIES, LLC
STEP 3 STEP 4 A SECTION A-A
MAINTENANCE
MAINTENANCE 1.INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL.MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
INSPECT INLETS AT LEASTWEEKLY AND AFTER EACH SIGNIFICANT(10 INCH OR GREATER) 2.SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE,TEAR,DECOMPOSE OR BECOME INEFFECTIVE,REPLACE IT PROMPTLY.
RAINFALL EVENT.CLEAR THE MESH WIRE OF ANY DEBRIS OR OTHER OBJECTS TO PROVIDE
ADEQUATE FLOW FOR SUBSEQUENT RAINS.TAKE CARE NOT TO DAMAGE OR UNDERCUT 3.REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE
THE WIRE MESH DURING THE SEDIMENT REMOVAL.REPLACE STONE AS NEEDED. NTS PRESSURE ON THE FENCE.TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT.
4.REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE AFTER NTS
THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED AND NCDENR APPROVES REMOVAL.
8000 Corporate Center Drive
4 TEMPORARY SEEDING SPECIFICATIONS 5 PERMANENT SEEDING SPECIFICATIONS 8 HARDWARE CLOTH & GRAVEL INLET PROTECTION 9 SILT FENCE Charlotte, North Carolina28226
Phone: [phone]
GRASSED OR RIP RAP LINED SWALE
L = THE DISTANCE SUCH THAT POINTS MAINTENANCE NOTE THIS CROSS SECTION IS TO BE USED FOR THE
A AND B ARE OF EQUAL ELEVATION PIPE OUTLET TO ENTIRE LENGTH OF THE SWALE. LASS 1 RIP RAP
WELL-DEFINED CHANNEL 1. INSPECT THE OUTLET PROTECTION SEE SECTION THRU BASIN BELOW)
AFTER EACH RAINFALL BUT IN NO PROJECT INFORMATION
A A CASE LESS THAN ONCE PER WEEK. SEE PLAN FOR WIDTH F� \ //
A E L _ _ G ANY STONES THAT THAT HAVE BEEN
DISLODGED SHOULD BE REPLACED \\\\
1=111=111-111-111 111 �-SEDIMENT STORAGE AREAAND ANY ROUND
-
-I I I=1 I I=1 I I=III-111 III,;,II11.11111 I 1 11 111I11 11I1111 III-III-III-11-� - - - - OUTLET SHOULD BE REPAIRED. GRASS OR RIP RAP LINING GROUND
\ LASS 1 RIP RAP HEADWALL
DESIGNED BY: CALEB
_ _ _ EXISTING ,
DRAWN BY: CALEB
�\ /����i//////lllllllllllll'
11=III=i�1-11�-111-111-111-11 � t� SEE PLAN
- - I-I 11=1 11=III
CENTER OF THE DAM IS ° / I \\\\�\ 57 WASHED STONE CHECKED BY: SCOTT
q TO THE EDGES (MIN)BE 9" LOWER AN PLAN SEE PLAN FOR / SEDIMENT STORAGE AREA 1'THICKX 3'HIGH MIN.
0 TO FORM A WEIR A MIN. GRAVEL OR FABRIC 1 DEPTH PROJECT NUMBER: 2050
3
JI 1 PERSPECTIVE VIEW
o I oo l \ L 3 NOT TO SCALE
9" MIN.
N �-I II�-I III-III= I CONSTRUCTION SPECIFICATIONS: FLooD DRAWING SCALE
• I -III-1 STORAGE \ NATURAL GROUND
CENTER OF THE DAM IS I I- ZONE \\ice 1' 2' RIP RAP HEADWALL
0 1.REMOVE ALL TREES,BRUSH,STUMPS,AND OTHER
o TO BE 9" LOWER THAN I� o 'I �
0 FILTER FABRIC THE EDGES (MIN) -I I�I I I-I O COMPACTED 2 OBJECTIONABLE MATERIAL FROM THE FOUNDATION AREA. SEDIMENT
III-III-III-I 2.EXCAVATE THE CHANNEL AND SHAPE IT TO NEAT LINES \ 1 NOT TO SCALE
TO FORM A WEIR SUBGRADE STORAGE 1.5'
AND DIMENSIONS SHOWN ON THE PLANS PLUS 0.2 FT _FLO"�_ _
CLASS A OR B EROSION I I III- OVERCUT AROUND THE CHANNEL PERIMETER TO ALLOW
FLOVV_ 1.5 ---PIPE INVERT
Z CHANNEL OR DITCH CONTROL STONEI II I FOR BULKING DURING SEEDBED PREPARATIONS AND SOD 57 FILTER FABRIC
0 APPLICATION A 2'7 I I=III= FILTER LAYER BUILDUP. MAX.SEDIMENT DEPT WASHED LASS 1 RIP-RAP CONSTRUCTION SPECIFICATIONS:
LLL,JII�I�JJ. GRAVEL OR FABRIC STONE
o �fq�J T C N�R -III-III-I 3.REMOVE AND PROPERLY DISPOSE OF ALL EXCESS SOIL CLEAN OUT POINT) 1.CLEAR THE AREA OF ALL DEBRIS. DATE RELEASED
SECTION A-A SO THAT SURFACE WATER MAY ENTER THE CHANNEL
2.INSTALL THE CLASS B OR CLASS I RIPRAP IN A SEMI-CIRCLE AROUND
o MAINTENANCE FREELY. SECTION THRU BASIN,FILTER,&CULVERT PIPE THE PIPE INLET.
4.ESTABLISH GRASS IN THE CHANNEL IMMEDIATELY. NOT TO SCALE
NOTES 3.A 1 FOOT THICK LAYER OF NCDOT#5 OR#57 STONE SHOULD BE MAY 6 2024
1.INSPECT THE CHECK DAMS AFTER EACH RAINFALL BUT IN NO 1. L IS THE LENGTH OF THE RIPRAP 3. IN A WELL-DEFINED CHANNEL EXTEND MAINTENANCE: PLACED ON THE OUTSIDE SLOPE OF THE RIPRAP.
is FILTER FABRIC APRON.SEE EC PLAN THE APRON THE REQUIRED 4' WIDTH 4.SEDIMENT STORAGE AREA SHOULD BE EXCAVATED AROUND THE
CASE LESS THAN ONCE PER WEEK ( ) INSPECT ROCK PIPE INLET PROTECTION AT LEAST WEEKLY AND AFTER OUTSIDE OF THE STONE HORSESHOE 18"BELOW NATURAL GRADE.
OR UP TO THE TOP OF THE CHANNEL
> 3.REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE 2. D = 1.5 TIMES THE MAXIMUM BANKS, WHICHEVER IS LESS. EACH SIGNIFICANT(1/2"OR GREATER)RAINFALL EVENT AND REPAIR 5.WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED,FILL
SECTION A-A STONE DIAMETER BUT NOT LESS IMMEDIATELY.REMOVE SEDIMENT AND RESTORE THE SEDIMENT DEPRESSION AND ESTABLISH FINAL GRADING ELEVATIONS,COMPACT,
ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN.TAKE CARE THAN 6". 4. A FILTER FABRIC OR BLANKET SHOULD BE MAINTENANCE&CONSTRUCTION: STORAGE AREA TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS AND STABILIZE WITH GROUND COVER.
a TO AVOID UNDERMINING THE DAM DURING CLEANOUT. INSTALLED BETWEEN THE RIPRAP ACCUMULATED TO 1/2 THE DESIGN DEPTH OF THE TRAP.PLACE THE SHEET NUMBER
3.CLEAN OR REPLACE THE STONE WHEN IT SHOWS SIGNS OF AND SOIL FOUNDATION. SEDIMENT THAT IS REMOVED IN THE DESIGNATED DISPOSAL AREA AND
1.INSPECT THE SWALE FOR EROSION ONCE A WEEK AND AFTER EVERY RAINFALL.
REPLACE THE CONTAMINATED PART OF THE GRAVEL FACING.
CLOGGING OR OTHERWISE DOES NOT PERFORM CORRECTLY 2.IMMEDIATELY REPAIR AND/OR REPLACE ANY DAMAGED AREAS.
0 4.WEIR SECTION MUST BE 9"LOWER THAN ABUTMENTS 3.MAINTAIN PROPER CROSS SECTION UNTIL THE SWALE IS STABLE. CHECK THE STRUCTURE FOR DAMAGE.ANY RIPRAP DISPLACED FROM
5.DOWNSTREAM APRON LENGTH SHOULD BE 3 TIMES THE NTS NTS 4.KEEP THE GRASS IN A HEALTHY,VIGOROUS CONDITION AT ALL TIMES. NTS THE STONE HORSESHOE MUST BE REPLACED IMMEDIATELY. NTS
v
HEIGHT OF THE WEIR.
o - 6mO
N 10 CHECK DAM WITH WEIR 11 TYPICAL RIP RAP APRON 12 TYPICAL SWALE CROSS SECTION 13 ROCK PIPE INLET PROTECTION