Dogwood Plans 2023-08-04 Dewatering

GENERAL NOTES:
1. CONTRACTOR SHALL BE RESPONSIBLE FOR FIELD VERIFYING ALL ABOVE GROUND AND UNDERGROUND
FEATURES SHOWN ON DRAWINGS (PLANS). ADDITIONALLY, THE CONTRACTOR SHALL BE RESPONSIBLE
FOR EXERCISING REASONABLE EFFORTS TO PROTECT ANY UNKNOWN UNDERGROUND FEATURES. THE
CONTRACTOR SHALL NOTIFY THE ENGINEER IMMEDIATELY IF UNKNOWN FEATURES ARE DISCOVERED
THAT WOULD NECESSITATE MODIFICATION TO THE ILLUSTRATED DESIGN.
2. CONTRACTOR SHALL BE RESPONSIBLE FOR THE CONFIGURATION OF ALL EXCAVATION, UNDERCUT, AND
BACKFILL AREAS AND FOR MAINTAINING A SAFE WORK ENVIRONMENT IN ALL AREAS OF THE
CONSTRUCTION SITE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL REGULATORY
REQUIREMENTS.
3. CONSTRUCTION AND/OR DEMOLITION ACTIVITY, INCLUDING LOADING AND UNLOADING OF MATERIAL, IS
PROHIBITED BEFORE 7 AM AND AFTER 7 PM MONDAY THROUGH FRIDAY. WORK IS NOT PERMITTED ON
WEEKENDS OR HOLIDAYS WITHOUT PRIOR WRITTEN APPROVAL FROM THE ENGINEER.
4. CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING THE EXISTING STRUCTURES, ALL ADJACENT
PROPERTIES, THE GENERAL PUBLIC, AND ALL OF THE OWNER'S FACILITIES. SHOULD DAMAGES OCCUR,
THE CONTRACTOR SHALL REPAIR, AT HIS EXPENSE, IMMEDIATELY TO THE SATISFACTION OF THE OWNER
AND THE ENGINEER.
5. CONTRACTOR SHALL HOLD HARMLESS THE OWNER AND THE ENGINEER FOR DAMAGES, INJURIES, OR
OTHER ACCIDENTS WHICH OCCUR DURING THESE CONSTRUCTION ACTIVITIES.
6. CONTRACTOR SHALL BE RESPONSIBLE FOR THE SECURITY OF THE CONSTRUCTION SITE, INCLUDING BUT
NOT LIMITED TO: HIS EQUIPMENT, COMPLETED WORK, STAGED MATERIALS, AND SITE ACCESS BY
AUTHORIZED AND UNAUTHORIZED PERSONS.
7. TREES AND EXISTING LANDSCAPING NOT DESIGNATED FOR REMOVAL SHALL BE PROTECTED DURING
CONSTRUCTION.
8. CONTRACTOR SHALL BE RESPONSIBLE FOR SCHEDULING AND COORDINATION OF ALL ILLUSTRATED
CONSTRUCTION ACTIVITIES AT THE JOB SITE.
9. CONTRACTOR SHALL ENSURE THAT ALL WORK IS PERFORMED ACCORDING TO CURRENT OSHA SAFETY
REGULATIONS.
10. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL DAMAGES DURING CONSTRUCTION AND SHALL MAKE
REPAIRS AT HIS EXPENSE.
11. CONTRACTOR SHALL UTILIZE SIGNS, BARRICADES, FLAGMEN, OR GUARDS AS REQUIRED TO ENSURE THE
SAFETY OF ALL VEHICULAR AND PEDESTRIAN TRAFFIC DURING THE CONSTRUCTION PERIOD.
12. CONTRACTOR SHALL COORDINATE WITH THE ENGINEER, THE OWNER, AND ADJACENT PROPERTY OWNERS
AS REQUIRED FOR WORK OUTSIDE OF HOA PROPERTY OR EASEMENT.
13. CONTRACTOR SHALL NOT LEAVE ANY EXCAVATION OPEN OR UNPROTECTED DURING NON -WORKING
HOURS. CONTRACTOR SHALL UTILIZE SIGNS, FENCES, BARRICADES, ETC, TO ENSURE THE SAFETY OF
BOTH AUTHORIZED AND UNAUTHORIZED PERSONS WHO ENTER THE SITE.
14. CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK AS ILLUSTRATED ON PLANS. IF
EXISTING CONDITIONS DIFFER FROM THOSE ILLUSTRATED ON PLANS, CONTRACTOR SHALL NOTIFY
ENGINEER PRIOR TO CONSTRUCTION.
15. CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND GRADES AT THE JOB SITE. IF DIFFERENCES ARE
FOUND, HE SHALL NOTIFY ENGINEER IMMEDIATELY SO THAT MODIFICATIONS TO THESE DRAWINGS CAN
BE MADE.
16. CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE PROPER UTILITY COMPANIES AND FIELD
LOCATING ALL UTILITIES PRIOR TO CONSTRUCTION. ALL EXISTING UTILITIES AT THE PROJECT SITE
SHALL REMAIN, UNLESS OTHERWISE NOTED IN THE CONTRACT DOCUMENTS. ANY TEMPORARY
INTERRUPTIONS AND/OR DIVERSIONS IN UTILITIES SHALL BE APPROVED BY THE ENGINEER AND
PERFORMED IN ACCORDANCE WITH APPLICABLE FEDERAL, STATE, AND LOCAL REQUIREMENTS.
17. CONTRACTOR SHALL PREPARE A DETAILED CONSTRUCTION SEQUENCE FOR REVIEW BY THE ENGINEER
PRIOR TO CONSTRUCTION. CONTRACTOR SHALL PROVIDE THE DETAILED CONSTRUCTION SEQUENCE TO
THE ENGINEER AT LEAST 2 WEEKS PRIOR TO BEGINNING OF CONSTRUCTION.
18. CONTRACTOR SHALL PREPARE A DETAILED CONTROL OF WATER PLAN FOR REVIEW BY THE ENGINEER
PRIOR TO CONSTRUCTION.
19. FINISHED ELEVATIONS OF ALL HARD SURFACES (CONCRETE) SHALL BE ACCURATE TO = +/- 0.08'.
20. CONTRACTOR SHALL PROTECT EXISTING SANITARY SEWER MAIN WITHIN THE PROJECT LIMITS. DEPTH OF
SEWER MAIN AT EMERGENCY SPILLWAY CHANNEL SHALL BE FIELD VERIFIED TO CONFIRM NO CONFLICT.
NOTIFY THE ENGINEER OF ANY CONFLICT. SEE SHEET 4 FOR MANHOLE AND SEWER MAIN LOCATIONS.
VILLAGE OF WESLEY CHAPEL
DOGWOOD PARK
UNION COUNTY, NC
84 / Weddin
N wn Rd
VICINITY MAP
N TS
SITE DATA
MAILING
ADDRESS:
6490 Weddington Road
Wesley Chapel, NC 28104
Physical
Address:
121 Lester Davis Rd (S.R. 1339)
Waxhaw, NC 28173
COUNTY:
WAKE
State Dam ID:
Union-128
Contact
Info:
[phone]
clerk@wesleychapel*inc.com
Wetland
Impact:
984 SF 0.02 AC
Sheet List Table
Sheet
Number
Sheet Title
1
Cover
2
Existing Conditions
3
Demolition Plan
4
Site & Grading Plan
5
Erosion Control & Sedimentation Plan
6
Primary Outfall Plan & Profile
7
Riser Detail
8
Outlet Details
9
Erosion Control Details
10
NCG01 Details
Know what's below
CALL before you dig.
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GENERAL NOTES:
1. BEARINGS BASED ON NORTH CAROLINA GRID SYSTEM (NAD '83) AND TIED TO NGS
MONUMENT "UNION HM61"
2. PROPERTY SURVEYED WITHOUT THE BENEFIT OF .A TITLE SEARCH.
3.CONTOURS ARE BASED ON NAVD '88 DATUM AND CONTOURS ARE AT ONE FOOT
INTERVALS.
4+ THIS IS NOT A BOUNDARY SURVEY. PROPERTIES DEPICTED ARE .SHOWN FROM. COMPILED
DATA TAKEN FROM UNION COUNTY. GIS AND THE UNION COUNTY REGISTER .OF DEEDS.
ALL OWNER INFORMATION IS NEW OR FORMERLY.
I, KENNETH M..GREEN CERTIFY. THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION
FROM AN ACTUAL SURVEY MADE UNDER MY SUPERVISION; THAT THE VERTICAL ERROR
DOES NOT EXCEED MORE THAN ONE --HALF THE INTERVAL OF THE PLATTED
CONTOURS OVER 90% OF THE COVPC0"ARFj4,�
CA O R,.'',
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ASS
KENNETH M. GREEN, PL.S L-3512 i111111111110"%•
i, Robert F. Akers, Jr., a Professional Land Surveyor in North Carolina, certify that this project was
completed under my supervision from an actual photogrammetric survey made under my supervision.
that this photogrammetric survey was performed to meet Federal Geographic Data Committee (FGDC)
Standards for a final reap scale of 1" = 100' and a contour interval of one foot using imagery with
❑ Ground Sample Resolution of 0.40% that the imagery was obtained on January 8, 2011 and
the phatogrammetric survey was completed on, February 15, 2011; that contours shown as broken
lines may not meet. F'GDC Standards due to obscurred ground and that all coordinates and elevations .
shown are based on North Carolina Grid Coordinates, as.supplied by R. Joe Harris. .
R. Joe Harris field located the features shown on this project and Avioimage incorporated the field data
which was dated June 15, 2022.
Robert F. Akers, Jr. PLS L-2965
GAi,�o
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�. ,No.2965
f_ N,
�� AVIOIMAGE
MAPPING
' SERVICES,INC.
C'7 No. F-0810 -r.
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WEDDINGTON RI)
(NC HWY 84)
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0 IS TO BOTTOM OF POND .
TH OF MUCK IS NOT INCLUDED IN THE TOPO
IDLE
CURRENT OWNER:
VILLAGE OF WESLEY CHAPEL
6490 WEDDINGTON ROAD,
WESLEY CHAPEL, NC 281.04
VICINITY MAP
NOT TO SCALE

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DEMOLITION NOTES
1. ALL WORK SHALL BE PERFORMED WITHIN HOA PROPERTY OR TEMPORARY CONSTRUCTION EASEMENT WITHIN THE PROJECT AREA AS
SHOWN ON THE PLANS.
2. TREES WITHIN THE CONSTRUCTION LIMITS OR LIMITS OF DISTURBANCE THAT DO NOT CONFLICT WITH CONSTRUCTION SHALL REMAIN AND
BE PROTECTED FROM DAMAGE, UNLESS OTHERWISE DIRECTED BY THE ENGINEER.
3. DEMOLITION SHALL INCLUDE THE COLLECTION AND REMOVAL OF ALL TREES, STUMPS, BRUSH, VEGETATION, TRASH, DEBRIS, WASTE
CONCRETE, WASTE ASPHALT, WASTE PIPING, AND ANY OTHER UNSUITABLE MATERIAL WITHIN THE LIMITS OF CLEARING AND GRUBBING,
UNLESS INDICATED OTHERWISE ON THE PLANS OR DIRECTED BY THE ENGINEER.
4. DEMOLITION SHALL INCLUDE THE REMOVAL OF ALL DEBRIS AT ALL TEMPORARY DRAINAGE DEVICES. THE REMOVAL OF DEBRIS SHALL BE
MAINTAINED TO ALLOW CONSTANT DRAINING OF THE POND DURING CONSTRUCTION.
5. EXISTING TOPSOIL SHALL BE STOCKPILED FOR LATER USE BY THE CONTRACTOR.
6. ANY STOCKPILES, ETC., SHALL BE REMOVED BY THE CONTRACTOR PRIOR TO CONSTRUCTION COMPLETION, UNLESS DIRECTED OTHERWISE
BY THE ENGINEER.
TREE REMOVAL NOTES
1. CUT THE TREE APPROXIMATELY TWO FEET ABOVE GROUND LEAVING A WELL-DEFINED STUMP THAT CAN BE USED IN THE ROOTBALL
REMOVAL PROCESS
2. REMOVE THE STUMP AND ROOTBALL BY PULLING THE STUMP, OR BY USING A TRACK -MOUNTED BACKHOE TO FIRST LOOSEN THE
ROOTBALL BY PULLING ON THE STUMP AND THEN EXTRACTING THE STUMP AND ROOTBALL ALL TOGETHER.
3. REMOVE THE REMAINING ROOT SYSTEM AND LOOSE SOIL FROM THE ROOTBALL CAVITY BY EXCAVATING THE SIDES OF THE CAVITY TO
SLOPES NO STEEPER THAN 1:1 AND THE BOTTOM OF THE CAVITY APPROXIMATELY HORIZONTAL.
4. BACKFILL THE EXCAVATION WITH WELL -COMPACTED SOIL PLACED IN LIFTS NOT GREATER THAN EIGHT INCHES IN LOOSE LIFT THICKNESS.
SEE TECHNICAL SPECIFICATIONS SECTION 02300: FILLING & STABILIZING.
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EXISTING
FOOT 579�b7� I
BRIDGE
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LIMITS OF DISTURBANCE �5ao "� � L' 4 -
am
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589
593
TEMPORARY SEEDING
TEMPORARY SEEDING SHALL BE COMPLETED WITHIN 24 HOURS OF COMPLETION OF GRADING
ACTIVITIES IN ANY WORK AREA. TEMPORARY SEEDING SHALL NOT BE REQUIRED IN AREAS
IMMEDIATELY SEEDED WITH PERMANENT SEED.
SEED: APPLY THE FOLLOWING VEGETATION AT THE LISTED RATES.
• FALL, WINTER, AND SPRING SEEDING (AUGUST 15-MAY 1): RYE GRAIN 120 LB PER ACRE
•SUMMER SEEDING (MAY 1-AUGUST 15): BROWNTOP MILLET 40 LBS PER ACRE
MULCH: APPLY 4,000 LBS./ACRE GRAIN STRAW. PROVIDE BIODEGRADABLE MATTING IN LIEU OF
MULCH ON SLOPES 3:1 OR STEEPER.
PERMANENT SEEDING
APPROVED DATES FOR PERMANENT SEEDING ARE SEPTEMBER 1 TO OCTOBER 31 AND FEBRUARY
15 TO APRIL 30. OUTSIDE OF THESE TIME FRAMES, PERMANENT SEEDING CAN ONLY BE DONE
WHEN COMBINED WITH TEMPORARY SEED UNDER COIR MATTING OR WITH PRIOR APPROVAL BY
THE ENGINEER.
AREAS TO BE SEEDED SHALL BE RIPPED AND SPREAD WITH TOP SOIL 3" DEEP. TOTAL SEEDBED
PREPARATION DEPTH SHALL BE 4" TO 6" DEEP.
PERMANENT SEEDING (,SPRINGI
SPRING (FEBRUARY 15 - APRIL 30): TALL FESCUE 200 LB PER ACRE
NOTE: RE -SEEDING IN THE FALL WILL BE NECESSARY IF PERMANENT VEGETATIVE COVER IS NOT
ADEQUATELY ESTABLISHED.
PERMANENT SEEDING (FALL)
FALL (SEPTEMBER 1 - OCTOBER 31): TALL FESCUE 200 LB PER ACRE
NOTE: COIR MATTING AND MELLOW MARSH RIPARIAN BUFFER MIX, OR APPROVED ALTERNATIVE,
REQUIRED ON STREAMBANKS.
MULCH: APPLY 4,000 LBS./ACRE GRAIN STRAW OR EQUIVALENT COVER. PROVIDE BIODEGRADABLE
MATTING IN LIEU OF MULCH ON SLOPES 3:1 OR STEEPER.
SEE SPECIFICATIONS FOR SEEDING METHODS AND WARRANTY.
STABILIZATION TIMEFRAMES
SITE AREA DESCRIPTION
PERIMETER DIKES, SWALES, DITCHES, SLOPES
HIGH QUALITY WATER (HQW) ZONES
SLOPES GREATER THAN 3:1
SLOPES 3:1 OR FLATTER
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1
STABILIZATION TIMEFRAME EXCEPTIONS
7 DAYS NONE
7 DAYS NONE
7 DAYS IF SLOPES ARE 10ft OR LESS IN LENGTH AND ARE NOT
STEEPER THAN 2:1, 14 DAYS ARE ALLOWED.
14 DAYS 7 DAYS FOR SLOPES GREATER THAN 50'IN LENGTH
14 DAYS NONE, EXCEPT FOR PERMIETERS AND HQW ZONES.
EROSION CONTROL NOTES:
1. THE CONTRACTOR SHALL INSTALL ALL EROSION AND SEDIMENT CONTROL MEASURES AND
DEVICES ACCORDING TO THE STANDARDS AND SPECIFICATIONS OF THE NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY AND APPLICABLE STATE AND LOCAL LAWS AND
ORDINANCES, AND PREVENT STANDING WATER WITHIN PROJECT LIMITS.
2. CONTRACTOR SHALL TAKE APPROPRIATE MEASURES TO PREVENT SEDIMENT FROM LEAVING SITE.
STREETS AND PAVED PARKING AREAS SHALL BE SWEPT REGULARLY TO KEEP THE TRACKED
SEDIMENT FROM ENTERING THE STORM DRAINS AND STREAM.
3. CONTRACTOR SHALL INSTALL TEMPORARY EROSION CONTROL DEVICES WITHIN THE PROJECT AREA
AS REQUIRED TO CONTROL SEDIMENT TRANSPORT PRIOR TO COMMENCING EARTHWORK. IF
ADDITIONAL STAGING/STOCKPILE AREA IS REQUIRED, THE AREA MUST BE APPROVED BY THE
ENGINEER AND SILT FENCE MUST BE INSTALLED BEFORE USE.
4. CONTRACTOR SHALL ENSURE THAT DRAINAGE IS DIRECTED INTO TEMPORARY SEDIMENT DEVICES
THROUGHOUT THE CONSTRUCTION PERIOD.
5. AS EACH PORTION OF CONSTRUCTION IS COMPLETE, CONTRACTOR SHALL INSTALL PERMANENT
STABILIZATION. AT END OF PROJECT, WHEN AUTHORIZED BY THE ENGINEER, CONTRACTOR
SHALL REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INSTALL PERMANENT
STABILIZATION, AND RESTORE THE SITE AS SHOWN ON PLANS, OR AS CLOSELY AS POSSIBLE TO
ORIGINAL CONDITIONS.
6. CONTRACTOR SHALL PROVIDE SOIL STABILIZATION FOR ALL DISTURBED AREAS BASED ON TIME
FRAMES SHOWN ON STABILIZATION TIMEFRAME CHART WITHIN THE SPECIFIED CALENDAR DAYS
FROM THE LAST LAND -DISTURBING ACTIVITY.
7. CONTRACTOR SHALL BE RESPONSIBLE FOR THE ACCOMMODATION AND MAINTENANCE OF BASE
AND STORM FLOWS IN ALL AREAS OF THE PROJECT SITE THROUGHOUT THE CONSTRUCTION
PERIOD. SEE TYPICAL PUMP -AROUND DETAIL.
8. CONTRACTOR SHALL INSPECT SITE AFTER EACH RUNOFF PRODUCING RAINFALL AND REPAIR
VISIBLE EROSION. CONTRACTOR SHALL REPAIR AND REPLACE EROSION CONTROL DEVICES AS
NECESSARY.
9. DE -WATERING OF STRUCTURES WITH SEDIMENT -LADEN WATER DIRECTLY TO STREAMS OR STORM
DRAINAGE SYSTEM IS PROHIBITED. THE CONTRACTOR SHALL TAKE APPROPRIATE ACTION TO
ENSURE THAT SUCH PROHIBITED ACTIVITIES DO NOT OCCUR.
10. PERMANENT GROUND COVER IS REQUIRED ON ALL DISTURBED AREAS OF THE CONTRACT.
MULCHING SHALL BE PROVIDED FOR ALL AREAS REQUIRING SEEDING.
LAKE DRAW DOWN PLAN
1. LAKE SHALL BE PUMPED DOWN AT A RATE NOT TO EXCEED ONE
FOOT WATER SURFACE ELEVATION PER DAY.
SURFACE AREA OF LAKE = 1 1 1 ,174 SQUARE FEET
MAXIMUM DRAW DOWN = 111,174 CUBIC FEET PER 24 HOURS.
81320 CUBIC FEET PER DAY = 1.287 CFS = 578 GPM
2. PUMPED DISCHARGE FROM THE LAKE MUST BE DISCHARGED
THROUGH A FILTER BAG UNLESS THE FOLLOWING CONDITIONS CAN
BE MET:
1 — INTAKE IS AT LEAST ONE FOOT ABOVE LAKE BOTTOM
AT POINT OF INTAKE.
2 — PUMPED FLOW IS DISCHARGED TO A RIPRAP PAD FOR
ENERGY DISSIPATION. SEE DETAILS ON SHEET 9.0 FOR
TYPICAL PUMP AROUND AND DEWATERING WITH FILTER
BAG DETAILS.
3. AS THE LAKE LOWERS, CONTRACTOR SHALL INSPECT DISCHARGE
TO CONFIRM THAT SEDIMENT IS NOT BEING TRANSMITTED
DOWNSTREAM.
4. FLOW BEING PUMPED FROM LESS THAN ONE FOOT ABOVE THE
LAKE BOTTOM AT THE POINT OF INTAKE SHALL BE DISCHARGED
THROUGH A FILTER BAG.
5. ONCE CONSTRUCTION BEGINS, THE LAKE SHALL REMAINED
DRAINED AT ALL TIMES UNTIL APPROVAL TO IMPOUND IS
AUTHORIZED BY THE STATE DAM SAFETY OFFICE, NCDEQ.
SUGGESTED PROJECT SEQUENCE
1.
INSTALL
EROSION CONTROL MEASURES AS SHOWN ON PLANS.
2.
INSTALL
TEMPORARY FLOW DIVERSIONS FOR CONTROL OF WATER.
3.
REMOVE
EXISTING OUTLET STRUCTURES.
4.
INSTALL
PROPOSED STRUCTURES, BACKFILL, AND GRADE EMBANKMENT AS
SHONW
ON THE PLANS.
5.
GRADE EMERGENCY SPILLWAY AS SHOWN ON THE PLANS.
6.
INSTALL
RIPRAP AT DISCHARE LOCATION AS SHOWN ON THE PLANS.
7.
REMOVE
TEMPORARY CHECK DAM.
8.
STABILIZE REMAINING DISTURBED AREAS WITH SEED AND MULCH.
9.
REMOVE
THE CONSTRUCTION ENTRANCE AND STABILIZE THE AREA.
10.
REMOVE
REMAINING EROSION CONTROL MEASURES AFTER SUFFICIENT
STABILIZATION HAS OCCURRED..
GRAPHIC SCALE
20 0 10 20 40 80
(IN FEET)
1 inch = 20 ft
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CALL before you dig.
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_
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CONCRETE ENDWALL \ \LI I CSS ` I rn I i I I I nI II nI I 585- SEE DETAIL Ln M IM
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SAND FILTER I I PROPOSED 8.0' x 16.0' CONCRETE RISER
-
-584— i
I I _ � I I � � I DIAPHRAGM I I I w/ TRASH RACK, CREST ELEV: 586.00.
583- -----------\ \ I II I I I SEE I I I SEE RISER DETAIL
1
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- ,�00
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�II I I II I II I I I 64 LF 60 in RCP i GATE 8
— - — — � ..579 ! 5�9 --/ -579—
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— — -579 r k6p _ �•--5 SEE 'LOW FLOW AREA" DETAIL
8 i ems--' 'y "•"9;--------- - I
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—----------- __._,— — — — -----_— -- --__— —— _—— ---- -- --- 0+40
--578—-----0+20- 00 D 0 00 Go
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I I I I I
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� pp1 N I � / I I I INTEGRA S SLAB
Doi aoi ao� ao� aoi ooi am am an — I 1 I I I I I I SPR NG LINE, SEEIDETAIL. ^ L 00 SEE RISER DETAIL
° �'� 1 LO% II II
°In
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I I
LIMITS OF DISTURBANCE ` ��ti / � I I I \ I STONE BEDDING TO SPRING LINE. ITS OF DISTURBANCE
MIN. 12" EITHER SIDE OF PIPE
�I II l I #57 STONE, 12" MIN. DEPTH ` -
/ 00
i
GRAPHIC SCALE
10 0 5 10 20 40
592
591
590
589
588
587
586
585
584
583
582
581
580
579
578
577
576
575
574
573
EXIS NG GRADE
(CRE K �)
NCDOT TYPE 2
FILTER FABRIC
SLOPE AS NEEDED
FOR PIPE COVER
BEHIND HEADWALL
/
2' MIN.
,;
EXISTING
\ GRADE
SAND FILTER
DIAPHRAGM \
SEE DETAIL \
REINFORCED
CONCRETE /
ENDWALL /
SEE DETAIL
LINE SPILLWAY WITH CLASS "2"
RIPRAP STONE 2.67 ft DEEP w/
NCDOT TYPE 2 FILTER FABRIC --------- -----
I
I /
S P RI N G L I N E CONCRETE SLOPED -
-------------�- /
TO PIPE INVERT
I /
------ -- -- / INV:578.65-
I. INV: 578.11 64 LF (2) 60 in RCP @ 0.82%
I - -- — — ------------ \ /
1.01
----------f------- ------------�--
LINE CHANNEL WITH CLASS "2"
MIN. .1
I RIPRAP STONE 2.67 ft DEEP w/
NCDOT TYPE 2 FILTER FABRIC
0+00 0+20 0+40 0+60
SAND FILTER
U DIAPHRAGM
STON€ &E-DDING-TO-SPRIN LINE. SEE DETAIL
NCDOT TYPE 2 MIN. 12" EITHER SIDE OF PIPE
FILTER FABRIC 1457 STONE, 12" MIN. DEPTHI
0+80 1+00 1+20
Primary Outfall
1+40 1+60
(IN FEET)
1 inch = 10 ft
TRASH RACK,
SEE DETAIL SHEET # 7
PERM. WATER ELEV: 586.0
PROPOSED 8.0' x 16.0'
CONCRETE RISER w/ TRASH
RACK, CREST ELEV: 586.00.
SEE RISER DETAIL
STEM
SUPPORT
6"
GATE
VALVE LAKE DRAIN
SEE "LOW FLOW AREA" DETAIL
\—INV:581.25 ----
EXISTING
GRADE
BOTTOM of
LOW FLOW AREA: 579.90
.L
INTEGRAL BASE SLAB
SEE RISER DETAIL
SPRING LINE. 12" MIN.
DEPTH, SEE DETAIL.
1+80
0 10 20
GRID SCALE: 1"= 10' HORZ
2+00
0 1 2
GRID SCALE: 1"= 2' VERT
592
591
590
589
588
587
586
585
584
583
582
581
580
579
578
577
576
575
574
573
2+20
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CALL before you dig.
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10,
18'
f
T ACCESS
DOORS ON HINGES
w/ LOCKABLE LATCH
2'-3"
TRASH RACK DETAIL NOTES:
F
REMOVABLE
GATE VALVE
HAND WHEEL
IINGED ACCESS DOOR
WITH LOCK AND KEY
-LINED UP WITH STEPS
HOST STRUCTURE INFORMATION
PART NUMBER
LENGTH
18ft
WIDTH
loft
^12
WALL THICKNESS (REQ'D)
in—�
AVAILABLE OPTIONS
"L" CHANNEL STEEL CROSS BRACING
REMOVABLE ACCESS HATCH
HDPE ANTI -VORTEX PLATE I X
VOTES: 1. GABLE END SHOULD BE SHORTER END WHEN MEASURING.
2. MEASUREMENT CHANGES WILL OCCUR WHEN ACCESS DOOR IS
NEEDED AND LADDER PLACEMENT IS DETERMINED.
1. CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OR STANDARD DETAIL FOR APPROVAL.
2. TRASH RACK SHALL BE PEAKED -ROOF TOP MOUNT AS SHOWN ABOVE. SEE RISER DETAIL FOR RISER
STRUCTURE DIMENSIONS.
3. TRASH RACK SHALL INCLUDE A HINGED ACCSS DOOR TO BE LOCATED AT STEPS TO ALLOW ACCESS
INSIDE RISER STRUCTURE. LOCATION SHALL NOT INTERFERE WITH PIPE ENTRANCE AND GATE VALVE
LOCATIONS. SEE RISER DETAIL FOR LOCATIONS.
4. TRASH RACK SHALL INCLUDE ANTI -VORTEX PLATE.
5. TYPICAL GRATE OPENINGS SHALL BE 9"X 9".
6. TRASH RACK SHALL BE CONSTRUCTED WITH STAINLESS STEEL OR ALUMINUM.
TRASH RACK DETAIL
NOT TO SCALE
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NOTES:
INSTALL ALL STEPS PROTRUDING 4" FROM INSIDE FACE OF STRUCTURE WALL.
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STEPS DIFFERING IN DIMENSIONS, CONFIGURATION, OR MATERIALS FROM THOSE
SHOWN MAY ALSO BE USED PROVIDED THE CONTRACTOR HAS FURNISHED
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THE ENGINEER WITH DETAILS OF THE
PROPOSED STEPS AND HAS RECEIVED WRITTEN
APPROVAL FROM THE ENGINEER FOR THE
USE OF SUCH STEPS.
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NOTE:
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SECTION A -A
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ELEVATION
SANITARY SEWER MANHOLES.
SHEET 1 OF 1
SHEET 1 OF 1
840.66
840.66
NOT TO SCALE
20'
0'
2'
Tnr% \ /1 r%A/
TRASH STAINLESS STEEL VALVE STEM w/ WHEEL
RACK TOP. PROVIDE MANUFACTURER
APPROVED STEM GUIDES, SPACED PER
MANUFACTURERS RECOMENDATIONS
8' 1' . #5 REBAR @ 12" O.C.
FULL LENGTH OF RISER BOTH WAYS.
(NOT SHOWN FOR CLARITY)
----- STAIR,
60" RCP TYP. 1 (2) STEM GUIDES
OUTFALL 6" DIP LAKE
6" MJ GATE VALVE DRAIN
a GROUT
�• . 2'-2" FLEXIBLE WATERTIGHT RUBBER GASKET
CONCRETE CRADLE, FLOW FOR DIP TO CONCRETE RISER CONNECTION
SEE DETAIL THIS SHEET . - 1'
.. .
l' g
6 KEEP REBAR
-
III _ ° - - -
3" FROM EDGE
GROUT AREA BENEATH
PIPE BETWEEN CRADLE I- 13 - #5 REBAR EVENLY SPACED. , I ANDRISERRISER'-
12'
SIDE VIEW
6" DIP LAKE
DRAIN PIPE
r-- 90' BEND
6" DIP
ELEV: 442.0
STRAINER /
TRASH GUARD
SEE DETAIL
TRASH
RACK
16'
STAIR,
#5 REBAR @ 12" O.C. /�—�\ /�—�\P
FULL LENGTH OF RISER / / — \ 6" MJ / \
BOTH WAYS.
/ GAT,t VALVE
60" RCP �I �I / / 60" RCP �I �I 8`1y4"
OUTFALL OUTFALL
1 1 GROUT
\ INVERT i \ INVERT
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KEEP REBAf 4 . J 1'-16
3" FROM EDGI= <. Q I
-III III III-1-1 I I-1
— _ — 21 - #5 REBAR EVENLY SPACED. I —III I I -
CONCRETE RISER DETAIL
0 1 2
SCALE: 1/4" = 1'
LOW AREA BELOW
LAKE DRAIN.
8' x 8' MIN, 2' BELOW
LAKE BOTTOM GRADE
CLASS "A"
RIPRAP
12" DEPTH
6" DEPTH OF
#57 STONE NCDOT TYPE II NON -WOVEN
GEOTEXTILE FABRIC
LOW FLOW AREA AT LAKE DRAIN
\1OT TO SCALE
FRONT VIEW
GALVINIZED
HARDWARE CLOTH, MIN
19 GAUGE, MAX. 2"
OPENINGS DIP FILLER FLANGE
ATTACHED WITH
6" DIP LAKE GALVINIZED STEEL
DRAIN PIPE BOLTS
0 0 0 0
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0 0 O 0
6" DIP STRAINER / VARM IT GAU RD
NOT TO SCALE
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SPRINGLINE I 60" RCP �� � I 60" RCP
OUTFALL I a4 4 OUTFALL I
4 a 4
J
2 - #5 REBAR
EVENLY SPACE
CONTINUOUS a 4 \ MONOTYTHIC \ i
VERTICALLY 4 ° i / ° CONCRETE CRADLE
--� 4 3,000PSI MIN.
4. / 4 4
aJ /° 4 4 4 ° J a 4
4 �
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1' 1'
#4 REBAR 17 - #5 REBAR
DOWELS & HOOKS @ 12" O.C. @ 12" OTC
HOLD BARS 3" CLEAR FROM
SIDES & BOTTOM 17'-6"
MONOLYTHIC CONCRETE CRADLE DETAIL
0 2 4
SCALE: 1 /2" = 1'
SAND FILTER C33,
MAXIMUM 3% FINES
4.5' :..
.. :•: .ice �`�' •• .. .• �� ��'••
.. 60" 60"
RCP ` RCP
CONCRETECRADLE
_ .. 2.0' _ ..
25.5'
FRONT VIEW
OUTLET CONDUIT
60" 0 RCP
FLOW
NOTES:
1. CONTRACTOR TO PROVIDE OWNER'S
TESTING AGENCY WITH A SAMPLE OF
C-33 SAND FOR GRADATION TESTING
IN ADVANCE OF CONSTRUCTION.
2. PLACE SAND WITH CLEAN
CONSTRUCTION EQUIPMENT.
3. WET SAND IN -PLACE AND LIGHLTY
TAMP WITH HAND-HELD TAMPER.
4. EXTEND SAND FILTER MIN. 2' BEYOND
CONCRETE CRADLE.
SEE
PROFILE
SHEET
#6
Do
2.0'
MIN
5.0'
Min.
SECTION
VIEW
SAND FILTER DIAPHRAGM DETAIL
N0 0 CCAI
SAND FILTER C33,
MAXIMUM 3% FINES
FLU
598
596
594
592
590
588
586
584
0+00
/ SPRINGLINE
2 - #5 REBAR
EVENLY SPACE
CONTINUOUS
VERTICALLY
TWO PIPES 8' 9"
2 1/6 THREE PIPES 13'-0111
1 1 is "—
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4'-3,r TWO cPIPES�8'-6 THREE3 N1�IPIPES T4
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2'-7%2"
T2 OR T3 TOP & BOTTOM
T5 @ 6" TOP & BOTTOM
5 SPA. @ 11"
"Z' BARS IN
TOP OF FOOTING
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@ WING WALL
511
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5 SPA. @ 11" "N" BARS
IN BOTTOM OF FOOTING
PLAN
17'-6" TWO PIPES
26'-0" THREE PIPES
N 2-V1 @ V-6" N 2-G2 OR G3
T STR. FACE T 2-V1 @ 9" FILL FACE
B 2-B1
1-V1 STR. FACE
2-B2
10 I �� I 3" DRAINS
F
III ABOVE
o LOW LINE
2 r,G„
2'=
SEE STD. # 838.45
FOR GENERAL NOTES.
Irr
10 " 2"
2
FILL FACE II
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FILL FACE
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29
12
44
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4'-g"
4
12
4
12
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6'- 6"
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17'-2"
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25' - 8"
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"H" BARS "N" BARS "Z" BARS
BARS
"H", "N", & "Z' BAR DIMENSIONS ARE OUT TO OUT. WING ELEVATION REINF. STEEL LBS. 607 808 SHEET 1 OF 2
NOT TO SCALE CON./R.C. CU. YDS 7.9 9.9 838.28
5.5' NEW
Q
7.0' NEW
ADA
COMPLIANT
40' BRIDGE SPAN
ADA
COMPLIANT
ASPHALT
ASPHALT
BRIDGE DECK ELEV: 591.33'
EXISTING ASPHALT TOP OF DAM
- — — — — — — — — — — — — — — — — —
1 GRADE= 4.47%
GRADE= 3.92%
EXISTING — -
BOTTOM BRIDGE BEAM ELEV: 590.5'
2'1 Q Q�
21 ---
FILL
�
FILL
/
__--
CUT 25' SPILLWAY WEIR ELEV: 587.5'
0+20
PEDESTRIAN BRIDGE NOTES -
1. CONTRACTOR SHALL SUBMIT CONCEPT PLANS FOR APPROVAL FOR A PREFABRICATED PESESTRIAN
BRIDGE AND ALSO SUBMIT FINAL SHOP DRAWINGS FOR APPROVAL.
2. SUBMITTAL SHALL INCLUDE A PE STAMPED DESIGN PACKAGE AND INCLUDE ALL STRUCTURAL
ENGINEERING ASSOCIATED WITH THE BRIDGE.
3. BRIDGE WIDTH BETWEEN RAILS SHALL BE AT LEAST 8 FEET.
4. PEDESTRIAN BRIDGE SHALL SPAN THE EMERGENCY SPILLWAY SHOWN ON PLANS. SPILLWAY HAS A
CREST ELEVATION OF 587.5 FOR A CREST LENGTH OF 25 LINEAR FEET AND SLOPED SIDES AT 2 TO 1 TO
GRADE. SEE PROFILE PROVIDED.
5. LOWEST BRIDGE STRUCTURE ELEVATION SHALL BE AT OR ABOVE 590.5.
6. TRANSITION BETWEEN BRIDGE DECK AND ADJACENT ASPHALT PATH SHALL BE ADA COMPLIANT.
7. BRIDGE SHALL INCLUDE 42" HORIZONTAL SAFETY RAILING.
8. BRIDGE STRUCTURE SHALL BE CONSTRUCTED WITH WEATHERING STEEL. 2x PRESSURE TREATED PINE
IS ACCEPTABLE FOR DECKING.
0+40
EMERGENCY SPILLWAY WEIR AND BRIDGE
CCA_C: I" 4'
0+60
r� 10, -1
Tj3.5'
BRIDGE DECK ELEV: 591.33'
BOTTOM of BEAM ELEV: 590.5'
10" DEPTH FOR BRIDGE
BEAM & DECK
SECTION A - A
HANDRAIL
598
596
594
592
590
588
586
584
0+80
Know what's below
CALL before you dig.
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ROCK CHECK DAM
IMPERVIOUS DIKE (SEE
PROJECT SPECIAL
PROVISIONS)
TEMPORARY
PIPING
PUMP AROUND PUMP
EXISTING
GROUND
SPECIAL STILLING BASIN
FILTER FABRIC
FOR DRAINAGE
TYPE 2
(NON -WOVEN)
SPECIAL STILLING BASIN
(SEE PROJECT SPECIAL
PROVISIONS)
EWATERING PUMP
TEMPORARY
FLEXIBLE
HOSE
EXISTING
CHANNEL
�--IMPERVIOUS
DIKE (SEE
PROJECT
0 SPECIAL
�2 PROVISIONS)
SEQUENCE OF CONSTRUCTION FOR TYPICAL PUMP AROUND
1. INSTALL SPECIAL STILLING BASINS AT THE DOWNSTREAM END OF THE
DESIGNATED PROJECT WORKING AREA.
2. THE CONTRACTOR WILL INSTALL THE PUMP AROUND PUMP AND THE
TEMPORARY PIPING THAT WILL CONVEY THE BASE FLOW FROM UPSTREAM
OF THE WORK SITE.
3. INSTALL UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING OPERATIONS
FOR STREAM DIVERSION.
4. INSTALL THE DOWNSTREAM IMPERVIOUS DIKE AND PUMPING APPARATUS IF
NEEDED TO DEWATER THE ENTRAPPED AREA. THE PUMP AND HOSE FOR
THIS PURPOSE SHALL BE OF SUFFICIENT SIZE TO DEWATER THE WORK
AREA. THIS WATER WILL FLOW INTO A SPECIAL STILLING BASIN.
5. THE CONTRACTOR WILL PERFORM STREAM RESTORATION WORK IN
ACCORDANCE WITH THE PLAN AND FOLLOWING THE GENERAL
CONSTRUCTION SEQUENCE.
6. THE CONTRACTOR WILL EXCAVATE ANY ACCUMULATED SILT AND DEWATER
BEFORE REMOVAL OF THE IMPERVIOUS DIKE. REMOVE IMPERVIOUS DIKES,
PUMPS, AND TEMPORARY FLEXIBLE HOSE/PIPING STARTING WITH THE
DOWNSTREAM DIKE FIRST.
7. ONCE THE WORKING AREA IS COMPLETED, REMOVE THE STILLING BASINS
AND STABILIZE DISTURBED AREAS WITH SEED AND MULCH.
NOTES:
1. EXCAVATION SHALL BE PERFORMED IN ONLY DRY SECTIONS OF CHANNEL.
2. IMPERVIOUS DIKES SHOULD BE USED TO ISOLATE WORK AREAS FROM
STREAM FLOW.
3. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN BE
STABILIZED IN ONE WORKING DAY.
4. PROVIDE STABILZED OUTLET TO STREAM BANK.
12" MIN. CLASS A STONE
,TOP OF STREAM BANK
SANDBAG/STONE
n BASEFLOW
WORKING `
AREA J FLOW
IMPERVIOUS SHEET
PROVIDE STABILIZED
OUTLET TO STREAM
BANK
TYPICAL PUMP AROUND OPERATION
DO NOT USE CHECK DAMS IN INTERMITTENT OR PERENNIAL STREAMS
CLASS B RIP
A AND B ARE AT EQUAL ELEVATIONS
PLAN
CONSTRUCTION SPECIFICATIONS:
1. PLACE STONE TO THE LINES AND DIMENSIONS SHOWN IN THE PLAN ON A
FILTER FABRIC FOUNDATION.
2. KEEP THE CENTER STONE SECTION AT LEAST 9 INCHES BELOW NATURAL
GROUND LEVEL WHERE THE DAM ABUTS THE CHANNEL BANKS.
3. EXTEND STONE AT LEAST 1.5 FEET BEYOND THE DITCH BANK TO KEEP
WATER FROM CUTTING AROUND THE ENDS OF THE CHECK DAM.
4. SET SPACING BETWEEN DAMS TO ASSURE THAT THE ELEVATION AT THE TOP
OF THE LOWER DAM IS THE SAME AS THE TOE ELEVATION OF THE UPPER DAM.
5. PROTECT THE CHANNEL AFTER THE LOWEST CHECK DAM FROM HEAVY FLOW
THAT COULD CAUSE EROSION.
6. MAKE SURE THAT THE CHANNEL REACH ABOVE THE MOST UPSTREAM DAM
IS STABLE.
7. ENSURE THAT OTHER AREAS OF THE CHANNEL, SUCH AS CULVERT
ENTRANCES BELOW THE CHECK DAMS, ARE NOT SUBJECT TO DAMAGE OR
BLOCKAGE FROM DISPLACED STONES.
REFERENCE: NCDENR PLANNING AND DESIGN MANUAL, JUNE 2006
NOT TO SCALE
l'-6' MIN.
I--1
CROSS SECTION
I
IMPERVIOUS DIKE
/57 WASHED STONE
CLOTH
MAINTENANCE:
INSPECT CHECK DAMS AND CHANNELS AT LEAST WEEKLY AND AFTER EACH
SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY.
CLEAN OUT SEDIMENT, STRAW, LIMBS, OR OTHER DEBRIS THAT COULD CLOG THE
CHANNEL WHEN NEEDED.
ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK DAM AND
EROSION FROM HIGH FLOWS AROUND THE EDGES OF THE DAM. CORRECT ALL
DAMAGE IMMEDIATELY. IF SIGNIFICANT EROSION OCCURS BETWEEN DAMS
ADDITIONAL MEASURES CAN BE TAKEN SUCH AS INSTALLING A PROTECTIVE
RIPRAP LINER IN THAT PORTION OF THE CHANNEL.
REMOVE SEDIMENT ACCUMULATED BEHIND THE DAMS AS NEEDED TO PREVENT
DAMAGE TO CHANNEL VEGETATION, ALLOW THE CHANNEL TO DRAIN THROUGH
THE STONE CHECK DAM, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT
OVER THE DAM. ADD STONES TO DAMS AS NEEDED TO MAINTAIN DESIGN
HEIGHT AND CROSS SECTION.
REVISIONS FILE: L/Maps-Details/Detail Manual/Details
NO. DATE DESCRIPTION of y04� CITY OF MONROE
DRAWN BY: DKO DATE: 04-20-04
TEMPORARYROCK CHECK I 0$/0$ UPDATED SPECIFICATIONS UNION COUNTY NOR PH CAROG[NA
u CHECKED BY: JNL SCALE: N.T.S.
PREPARED BY:
c►aoENGINEERING DEPARTMENT DETAIL 03.12.01
INSTALLATION
1. LIFTING STRAPS SHALL BE PLACED UNDER THE FILTER BAG TO FACILITATE
REMOVAL AFTER USE.
2. PLACE FILTER BAG ON A LEVEL STABILIZED AREA OVER GRAVEL.
3. INSERT DISCHARGE HOSE FROM PUMP INTO FILTER BAG A MINIMUM OF SIX
INCHES (6") AND TIGHTLY SECURE WITH STRAP TO PREVENT WATER FROM
FLOWING OUT OF THE BAG WITHOUT BEING FILTERED.
4. REPLACE THE UNIT WHEN ONE HALF (2) FULL OF SEDIMENT OR WHEN SEDIMENT
HAS REDUCED THE FLOW RATE OF THE PUMP DISCHARGE TO AN IMPRACTICAL
RATE.
5. MATERIAL REMOVED FROM SILT BAGS CAN BE SPREAD ON SITE AS LANDSCAPE
MATERIAL AS LONG AS IT HAS BEEN ADEQUATELY DEWATERED SUCH THAT IT
WILL NOT MIGRATE DOWNSLOPE WHEN PLACED. SILT BAG MATERIAL SHALL NOT
BE USED AS BACKFILL OR PLACED WHERE STRUCTURAL MATERIAL IS REQUIRED.
SIZE AND NUMBER OF
FILTER BAGS BASED ON
DEWATERING PUMPING RATE
TIE DOWN STRAP PUMPED
DISCHARGE
FILTER BAG
4FLOW-
W_
DEWATERING
PUMP PUMP
DISCHARGE
HOSE
FILTERED WATER
DEWATERING WITH FILTER BAG DETAIL
NOT TO SCALE
SEEDING PREPARATION
AREAS TO BE SEEDED SHALL BE THOROUGHLY LOOSENED
AND WORKED TO A MINIMUM DEPTH OF AT LEAST 5 INCHES.
THE AREA SHALL THEN BE RACKED OR OTHERWISE CLEARED OF ROCKS,
LARGER THAN 2 INCHES IN DIAMETER, STICKS OR OTHER DEBRIS.
FOR LATE WINTER AND
SOIL AMENDMENTS;
EARLY SPRING:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 750 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
MULCH;
RYE (GRAIN) — 120 LB/ACRE
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
ANNUAL LESPEDEZA (KOBE) — 50 LB/ACRE
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
(OMIT ANNUAL LESPEDEZA WHEN DURATION
TOOL
OF TEMPORARY COVER IS NOT TO EXTEND
BEYOND JUNE)
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING
SEEDING DATES:
EROSION OR OTHER DAMAGE
JAN. 1 — MAY 1
FOR SUMMER:
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 750 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
GERMAN MILLET — 40 LB/ACRE
MULCH:
(A SMALL —STEMMED SUDANGRASS MAY BE
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
SUBSTITUTED AT A RATE OF 50 LB/ACRE)
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
SEEDING DATES:
TOOL
MAY 1 — AUG. 15
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING
EROSION OR OTHER DAMAGE
FOR FALL:
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL
LIMESTONE AND 1,000 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
RYE (GRAIN) — 120 LB/ACRE
MULCH:
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
SEEDING DATES:
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
AUG. 15 — DEC 30
TOOL
MAINTENANCE:
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH 50 LB/ACRE OF NITROGEN IN
MARCH. IF IT IS NECESSARY TO EXTEND TEMPORARY COVER BEYOND JUNE 15, OVERSEED WITH 50
LB/ACRE KOBE LESPEDEZA IN LATE FEBRUARY OR EARLY MARCH.
FOR ADDITIONAL INFORMATION, REFER TO NCDENR EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL (ESCPDM), SECTION 6.10.
FOR PERMANENT SEEDING SPECIFICATIONS, INCLUDING SEED BED PREP, SEASONAL LIMITATIONS FOR SEEDING OPERATIONS, THE KINDS OF GRADES OF
FERTILIZERS, THE KINDS OF SEED, AND THE RATES OF APPLICATION OF LIMESTONE, FERTILIZER, AND SEED, REFER TO NCDENR ESCPDM SECTION 6.11
PLEASE CONSULT THE NATURAL RESOURCES CONSERVATION SERVICE FOR ADDITIONAL ALTERNATIVES FOR VEGETATING DENUDED AREA
REVISIONS
`Rq Op y0�8p
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SEEDBED PREPARATION &
TEMPORARY SEEDING
CITY OF MONROE
UNION COUNTY NORTH
FILE: ENew_I/Maps-Details/Detail Manual&Specs/
Standard Detail & Spec Manual/Standard De[ai08-
NO.
DATE
DESCRIPTION
DRAWN BY: JAM
DATE: 08-07-01
t
a/zo/oa
FORMATATED
2
01/2015
RE"sm nT
PREPARED BY
ENGINEERING DEPARTMENT
CHECKED BY: JNL
SCALE: N.T.S.
DETAIL 03.07.01
Steel Gaurd Pipe
with Locking Cap
STANDARD PIEZOMETER DETAIL
NOT TO SCALE
Know what's below
CALL before you dig.
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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 NCG01 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
Stabilize within
Site Area Description
this many calendar
Timeframe variations
days after ceasing
land disturbance
aPerimeter I es,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper
If slopes are 10 feet or less in
than 3:1
7
length and are 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
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales, ditches
(e) Areas with slopes
perimeter slopes and HQW Zones
flatter than 4:1
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
techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw o
• Permanent grass seed covered with straw
other mulches and tackifiers.
or 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
• Plastic sheeting
covered 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.
QUIPMENT 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 paint 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.
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.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
A �P IC 1 ACTUAL LOCATION
D o CD O 1:1 LI I DETERMINED IN FIELD
O O FENCE SIDE SLOP SANDBAGS (TYP.)
(TYP, OR STAPLES 2. THE CONCRETE WASHOUT
O O STRUCTURES SHALL BE
MAINTAINED WHEN THE LIQUID
O O 3 -0 AND/OR SOLID REACHES 75%
OF THE STRUCTURES CAPACITY.
O O o O SANDBAGS (TYP.) & X'
A OR STAPLES MAX, 3.CONCRETE WASHOUT
SECTION A -A BELOW GRADE WASHOUT STRUCTURE STRUCTS TO BE
CLEARYUMARKED RE DWITH SIGNAGE
NOT TO SCALE NOTING DEVICE.
j0{yjjjj..� F}E ION
�OIBEM
CONCRETE
WASHOUT
CLEARLY MARKED
SIGNAGE
NOTING DEVICE
(18"X24" MIN.)
1. ACTUAL LOCATION
0'
DETERMINED IN FIELD
B
SANDBAGS (TYP.)10
O CD
CD
O
MIL OR STAPLES
P ASTIC LINING
`WTION
2. THE CONCRETE WASHOUT
STRUCTURES SHALL BE
1:1 SIDE
MAINTAINED WHEN THE LIQUID
O
O
SLOPE
AND/OR SOLID REACHES 75% OF
O
O
(TYP.)
THE STRUCTURES CAPACITY TO
10' MIN
PROVIDE ADEQUATE HOLDING
O
O
CAPACITY WITH A MINIMUM 12
O
3_0•
INCHES OF FREEBOARD.
o
MIN. , X'
MAX.
3.CONCRETE WASHOUT
B
SANDBAGS (TYP.)
STRUCTURE NEEDS TO BE
SECTION
B-BOR STAPLES
CLEARY MARKED WITH SIGNAGE
NOTING DEVICE.
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.
NCG-01 GROUND COVER & MATERIALS HANDLING
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 system
(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 A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Inspect
Frequency
Inspection records must include:
(during normal
business hours
Daily rainfall amounts.
(1) Rain gauge
Daily
maintained in
If no daily rain gauge observations are made during weekend
good working
on holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those
unattended days (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.
1. Identification of the measures inspected
(2) E&SC
At least once per 7
Measures
calendar days and
2. Date and Time of the inspection
within 24 hours of
3. Name of the person performing the inspection
a rain event >_ 1.0
4. Indication of whether the measures were operating properly
inch in 24 hours.
5. Description of maintenance needs for the measure
6. Description, Evidence, and date of corrective actions taken
(3) Stormwater
At least once per 7
1. Identification of the discharge outfalls inspected
discharge
9
calendar days and
Y
2. Date and Time of the inspection
p
outfalls(SDOs)
within 24 hours of
3. Name of the person performing the inspection
a rain event >_ 1.0
4. Evidence of indicators of stormwater pollution such as oil
inch in 24 hours.
sheen, floating or suspended solids or discoloration
5. Indication of visible sediment leaving the site
6. Description, Evidence, and date corrective actions taken
(4) Perimeter
At least once per 7
If visible Sedimentation is found outside site limits, then record
of Site
calendar days and
of the following shall be made:
within 24 hours of
1) Actions taken to clean up or stabilize sediment that has left
a rain event >_ 1.0
the site limits
inch in 24 hours.
2) Description, Evidence and date of corrective actions taken
3) An explanation as to the actions taken to control future
releases
(5) Streams or
At least once per 7
If the stream or wetland has increased visible sedimentation or
wetlands
calendar days and
has visible increased turbidity from the construction activity, then
onsite or
within 24 hours of
a record of the following shall be made:
offsite (where
a rain event >_ 1.0
1) Description, Evidence and date of corrective actions taken
accessible)
inch in 24 hours.
2)Records of required reports to the appropriate Division
Regional Office per Part III, Section C, Item(2)(a) of this permit
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
Stabilization
of grading.
measures, clearing and grubbing, installation of storm
Measures
drainage facilities, completion of all land -disturbing activity,
construction or redevelopment, permanent ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required timeframe
or assurance that they will be provided as soon as possible.
NOTE: The rain
Inspection resets
the reauired 7 calendar dav InSDectlon reaulrement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The
following items pertaining to the E&SC plan shall be kept on site and available for inspection at
all times during normal business hours.
Item to Document
Document Requirements
Initial and date each E&SC measure on a copy of
(a) Each E&SC measure has been installed and
the approved E&SC plan or complete, date and
does not significantly deviate from the locations,
sign an inspection report that lists each E&SC
dimensions and relative elevations shown on the
measure shown on the approved E&SC plan. This
approved E&SC plan.
documentation is required upon the initial
installation of the E&SC measures are modified
after initial installation.
(b) 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
Initial and date a copy of the approved E&SC plan
accordance with 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
Complete, date and sign an inspection report.
all E&SC measures have been performed.
(e) Corrective actions have been taken to E&SC
Initial and date a copy of the approved E&SC plan
measures.
or complete, date and sign an inspection report to
indicate the completion of the corrective action.
2. 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.
3. Documentation to be Retained for Three Years
All data used to complete the a-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]
NCG01- SELF INSPECTION
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 Emeraencv Center personnel at [phone].
Occurrence
Reporting Timeframe (After Discovery) and Other Requirements
(a) Visible
• Within 24 hours, an oral or electronic notification.
sediment
• Within 7 Calendar Days, a report that contains a description of the
deposition in a
sediment and actions taken to address the cause of the deposition.
stream or wetland
Division staff may waive the requirement for a written report on a case -
by -case basis.
• If the stream is named on the NC 303(d) list as impaired for sediment -
related caused, 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 Oils ills and
• Within 24 Hours an oral or electronic notification. The notification shall
release of
include information about the date, time, nature, volume and location
hazardous
of the spill or release.
substances per
item 1(b)-(c) above
(c) Anticipated
• A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
• Within 24 Hours, an oral or electronic notification
bypasses [40 CFR
• Within 7 calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass.
(e) Noncompliance
• Within 24 Hours, an oral or electronic notification
with the conditions
• Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance, including
may endanger
exact dates and times, and if the noncompliance has not been
health or the
corrected, the anticipated time noncompliance is expected to continue;
environment [40
and steps taken or planned to reduce, eliminate and prevent
CFR 122.41(I)(7)]
reoccurrence of the noncompliance. [40 CFR 122.41(1)(6).
• Division staff may waive the requirement for a written report on a case -
by -case basis.
Know what's below
CALL before you dig.
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