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Home My WebLink AboutSW6240203_Plansheet - Grading/Drainage Plan_20240818 LEGEND: _ _ G MDI NG EXISTING IRON STAKE - - - - - - - - - OWNER: EXISTING IRON PIPE PLAN GRAVITY COMPANIES,LLC EXISTING PK NAIL co E Jackson Boulevard US 4�1 �- 150' Pu-btic RIW I 664 INDUSTRIAL PARK DRIVE - _ - - j j ELIZABETHTOWN,NC 28337 NO POINT SET GEODETIC MONUMENT N.C. O \ - - - - - - - - PIN NO. 1507-33-7313.000 0- _ _ _ _ _ / _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ Silt Fence to be Inside of ■ EX. R/W MONUMENT __ _ _ _ _ _ - _ - _ _ _ _ - - - i / of Disturbance. GENERAL BUILDING INFORMATION • REBAR SET BUILDING USE:COMMERCIAL-RETAIL MAG NAIL SET TOTAL LOT SIZE= 1.526 AC± BUILDING SIZE: 16,000SF POWER POLE y , / a, Q❑ Q❑ BUILDING HEIGHT: 20FT U / ' 41 1 41 4, / X TA X Z / LIGHT POLE y Q� 4� a� � X X X X ADDRESS: 0 X v X X �� 9 TA KILL CURB 194.00' 46 SHRIJI LANE KILL CURB T 194.40' 195.13' Limits 1.55 AC of Disturbance = ERWIN,NC FIRE HYDRANT ASSEMBLY y� �- - 194.00' 193.0 193. 7 N GAS VALVE - - - - - - - - � I I �I L ZONING INFORMATION: / \- _ _ SITE ZONING: B 2 SANITARY SEWER MAN HOLE O - "I r- / DI 1 - - , DI I J SETBACKS: Z �� / \ BUILDING MINIMUM BUILDING SETBACKS(UNLESS NOTED) STORM MANHOLE 9 SPACES ` 12 SPACES / D /� / 0 FRONT: 30' I / >\1 / \ SIDE: 0' DROP INLET \ DI 1 , DI 2 KILL CURB FES `30 / - / RIM = 193.8 REAR:20' MATCH EX.GRADE / i� RIM = 194.2 _ - HEIGHT:35'MAX CATCH BASIN INV=187.44 NOTE: 192.82" CLASS B RIP RAP W/ r INV= 191.37 / 1 LF 15 INV= 190.86 94.00' TELEPHONE PEDISTAL ALL DEWATERING OPERATIONS SHALL BE FILTERED BEFORE / FILTER FABRIC INLET PROTECTION TA J / z SANITARY SEWER CLEAN OUT DRAINING OFFSITE AND A 10 DAY NOTICE SHALL BE GIVEN L=8' (TYP) I _ i ♦ 1 PRIOR TO START OF PUMPING PER THE UPDATED NCGO1 PERMIT W=6 `f UTILITIES: r D=18� ' .\ • 195.13 BOLLARD (110=7.62 CFS \ WASTEWATER SERVICE:6"SEWER SERVICE-TOWN OF ERWIN STREETS WILL BE SWEPT AS NEEDED BUT A MINIMUM OF ONCE V10=5.65 FPS WATER SERVICE:1"WATER SERVICE-TOWN OF ERWIN EXISTING TREE WHILE THE SITE IS ACTIVE ELECTRIC SERVICE: INLET PROTECTION T to cp A NATURAL GAS SERVICE: ALL STOC ILE RE 50 AY F M ALL ASPHAL ASPHALT PARKIN N THIS AREA I MATCH d) SHRUB 194.53' I DRAINAGE IN S AND SU E WATERS MATCH EX.GRADE \93' (TYP) 19A.01' TA, - PARKING REQUIREMENTS: / 195.10' p / LJJ L•L �•/ BACK OF CURB STORMWATER DATA 194.5 / 194.49' PARKING SPACES TO BE TYPICAL(9 FEET X 20 FEET)UNLESS OTHERWISE � 4J T I I J \ NOTED RIGHT-OF-WAY I I\o� TA ' 0 PARKING SPACES REQUIRED: 60 TOTAL DRAINAGE AREA - 1.526 AC 194.90' FENCE LINE 193.72' I TA I I 7 DITCH - I I L � � PARKING PROVIDED TOTAL: 61 SPACES TOTAL OFFSITE DRAINAGE 0 AC TA 195.30. _ HANDICAP REQUIRED:3 SPACES KILL CURB 194.80' 194.80' 5 SPACES 194.37' / RIGHT-OF-WAY I I 12 SPACES / ETA 194.90' TA I I \ ` H M TOTAL ONSITE AREA = 1.526 AC I I /TA I I r GENERAL SITE NOTES: EX.WATER LINE I I TA Z cc EX. DRAINAGE PIPE TOTAL IMPERVIOUS EXISTING . 0 AC \ I I 194.80' / I I 11 I r n - q " ALL NEW SERVICES SHALL MEET ALL NC BUILDING CODE REQUIREMENTS _ _ _ I I I // 195.30' 194.38' r v 2 e NON SURVEYED PROPERTY LINE TOTAL IMPERVIOUS PROPOSED = 1.02 AC ' I I o ALL EXISTING UTILITIES ARE SHOWN BASED ON FIELD EVIDENCE TOTAL % IMPERVIOUS = 65 % A I I I rn TSW I // o a / \ O PRIOR TO ANY DIGGING NC ONE CALL SHALL BE CALLED AND CONFIRM GRAVEL r / I I TSW 4.5 19 195.30' / UJ LOCATION AND SIZE OF ALL EXISTING UTILITIES. - FLOODPLAIN PRE DEV. RUNOFF Q 1 = 2.12FS / MINOR CONTOUR POST DEV RUN OFF Q 1 = 4.12 CFS / / / / I I T / 1 5.30' KILL CURB II 0� T O W q MAJOR CONTOUR / 194.0 / 194.69' / y/� q o' POST DEVELOPMENT 1 YR 24 HR EVENT SHALL BE DETAINED / / ^°�^ TAPER ASPHALT / W/ / A 194.68' � V J U ti AND RELEASED AT PRE DEVELOPMENT FLOWS ( / TO MATCH TSW / A - a N / / IN THIS AREA / 193 HC PARKING T 1 '^ `O W W V.! b `1910 , / SIGNAGE TO BE 194.90' o CON PAD / / INSTALLED ON TA : LID RA" DI5 / BUILDING LLI- f IoC I / co W I / // I RIM = 190 / w N ► / OCS 1 OVERFLOW CONTROL INV= 187.44 c� Z 4- 4" OPENINGS / / / / N co `n ' aco INV 191.5 1' WEIR AT ELEVATION 193 / / �irn / Cn Co I TO ALLOW WATER INTO SAND ° SEE DETAILS ( HARBOR FREIGHT o FILTER AT A DISPERSED FLOW RIM ELE = 194.5 / I Nt� 1 00 S a / 9 ° a. X / r I I l ° INV OUT 190 / / / / I ° 1 6 0 X 1 0 0 3500 PSI / / ° v J .. • CONCRETE 7 a ° / / / / / ' I /' ' FFE 195 ' - I D13 CLEAN OUT WITH CAP DI 3 FOR MAINTENANCE II I ACCESS TO UNDERDRAIN q pl RIM = 194.02 195.40' 1 \ INV= 190.45 W I W I I o OVERHEAD DOOR TSW 194.89' �194.25' = BORE LOCATION TA SEDIMENT CHAMBER 24" HDPE CLEAN OUT WITH CAP (APPROX) 195.00' SURFACE AREA 999 SF TOP 195 INV 190 FOR MAINTENANCE ACCESS TO UNDER I EL = 193.5' -y TA KILLCURB _/ CHAMBER TO BE BUILT OF 194.5 J 0 L- J STD. NCDOT ENTRANCE PER BY PASS DETENTION VOL OCS 1 \ 195.50' DELIVERY DOOR / CONCRETE WITH A WATER STOP 3000 CF OVERFLOW CONTROL Si Fence to be Inside of Limits I 195.29' ' TA a / NCDOT DETAILS. I A 5.50 AT THE FOOTING TO AVOID p WEIR EL IIII 1' WEIR AT ELEVATION 193 of Disturbance. I IAJ 4.08'- GROUND WATER INTO THE SYSTEM 193 SEE DETAILSF � TA CONSTRUCTION ENTRANCE. SEX. GROUND I I RIM ELE = 194.5 0 ° ,' d EL 193.5 I TREATMENT VOLUME 2998 CFN 228„X212' DU M PSTER II L. 191.5 1.5'SAND FILTER MEDIA ' 10 24 HDPE TO MEET ASTM C 33 PAD WITH 8' BLOCK - O ° •: INV 190 I :* WALL PER DETAIL 8" REINFORCED CONCRETE I I P.S.I., WITH TA/ MATCH 3000 \�o #5 BARS e: > b GRADE u' \ II 12" O.C. E.W. OCS 1 '^ » RIM =194.5 I I 18 HDPE INV OUT = 190 NOTES 11�11�111=III=III�II�II�II=11 II�II�III=III= I�II�II�I�II�II�II III=111�11�11�11 INV OUT 190 OVERFLOW WEIR- 193 d d d S ° dd d I i_ I 1"VOLUME REQUIRED=2706 CF / ��F1DPE DI4 194.03' I W SHRIJI LANE TREATMENT VOL PROVIDED=2998CF SURFACE AREA = TOTAL 999 SF Sand Filter. Per / 1 TAB I ; 6" HDPE PERFORATED PIPE727 194.21 T 193.95' BOT EL. 189.5 SMOOTH WALL WITH 3/8" PERFORATION Detail, This Sheet 194 1 \ I MATCH SS Ex - #57 CLEAN STONE SPACING MAX WIDTH 10' O/C 46.33'X46.33'. __,_�rA TA / g\// , GRADE 6" DEEP _ - WITH FILTER FABRIC �� D14 / Sand Filter Detail BETWEEN SAND AND STONE 194.5 RIM = 193.8 _ - = f \ eEx (NTS) INV Lu90.2 ^\ro - 195 - Line hcr.. Ru Incr. atal blet ow I Tat al I Veloc Tat Capac Pipe Pipe Hev Inv IIeu HIS ISd/am d/Ftim Le+ Area Area Coeff_ Cx A C•x C.onc }nt Row Row Full Size Slope Dn U L'me 1Dp Dn Up Dn Lip (R) (a) (aa) P (minj {ter,) _ (n� I {cfs} I {afj {_-r$} (R/s) I 6n) m (R) (R) fl} (R} (R} R) 139.000 027 0.76 0.99 0.28 0,74 5.0 92 6.7 5.02 3.32 &34 13.53 3.51 24 0.17 190.00 1%.24 191.50 191.58 195-W -I 193.30 5 F-DI4 69.730 0.13 0.49 0.9a 0.13_�-0.43 5.0 &.6 6.9 3.31 0.0 3.31 -� 3.32 1.33 18- 0.30 190.324 19'0.45 151.87 151:90 193.80 - 194.02 DI 4-DI ? _ _ � GRADE SWALE 137.280 0.19 0.3ta -0.98 0.19 l7 5.0 7.fi 7.2 2.53 0.00 2 53_I 5.10 2.09 15_ 0.30 130.45 10[1.8fi 191.95 152,04 194.02 I 193.t�{1 D I ❑12 _ / \ DRAIN 170.5L30 0.17 0.17 0.98 It.17 D.17 5.0 5.0 9.1 1.35 13.OD 1.35 313 1.32 15 0.301 190.-Rs 191.37 192.14 192.21 193.80 193m DI 2-u 11 DA= 0.18 AC 89.R0 024 D-24 0.40 0.10 0.19, 5.0 5.5 7.9 0.76 0.913 7.82 I 10.f3 4_62 18 0.413, 11171)9 197.44 18.5.51 138.64 189.00 189_00 FES 1 -DI 4 Q10=0.86 CFS 105.340 0.00 0.00 0.00 0.00 010 5.0 5.0 0.0 0.00 6.86 EW I 23.513 4.70 1a 2.42 1V.44 190.00 1aa.83 1131.01 135.013 1M.50 DI4-OCS 1 V10=1.29 FPS DATE Filter PAGE Q w DATE PAGE: Wire Fence Fabric o LZ Steel Post Plastic or a- W 8' Max, Stan Strength fabric with wire fence Wire Backfill trench > / 6' Max, Extra rength fabric without wire fence Wire Fence and Compact Lu o f_ W thoroughly J z Z Steel Post Lu W Q 0 W 0 W U pslope 0 Lu 0 W LIFTOUT ALUMINUM GRATE O D_ SCALE 1"=20' z z aY F SECTION FOR PIT ACCESS. 1$" PIPE Loa / Plastic or 18-24" "�-'. Fri: Q O O O 0 ALUMINUM BAR GRATING Wire ties 8' Min. Z ui W w Q Z STANDARD MESH CUT TO FIT-- \G S� Afj 0 20 40 N W v �_ 0 Q O GRATE El b FLUSH WITH TOP OF BOX. J� or T 24 .o. Q o o Fro L7 0 L, X U Q 194.5 / n� 8"down &4" INNER BANKS ENGINEERING, PC o W o � � zJ 02 Ouse forward alongthe z 0 U, O < U 24" P. 0. BOX 154 0 U) U) trench EOP9FWIER / Washington, NC 27889 W p p o ; w Filter Fabric Construction: CROSS SECTION VIEW Q �j Q Q 0 U W aY North Carolina 1$" PIPE 1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. 2 5 2- 4`�-29 U 4? Z / 2. Ensure that the height of the sediment fence does not exceed 24 inches above the round.(Higher fences may M U P E E D I N C�?I B X E N G I N E E R I N G.C O M N U N N One-Call Center ��• 6" Min, 9 9 l 9 Y 8 Ii W o W c impound volumes of water sufficient to cause failure of the structure) Maintenance: N _J 0_ �d 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints.When joints are 1. Inspect sediment fences at least once a week and after each 1 v W op 9 9 necessary,securely fasten the filter cloth only at a support post with 4 feet minimum overlap to the next post. inch or greater rainfall.Make any required repairs immediately. LICENSE NO. C-411 2�` 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts.Extend the 2. Should the fabric of a sediment fence collapse,tear, 2-3" Course y� ti2 wire mesh support to the bottom of the trench.Fasten the wire reinforcement,then fabric on the upslope side of the decompose,or become ineffective,replace it promptly. File No. 23039 #5 @ 12" O.C. Aggregate \P fence post.Wire or plastic zip ties should have a minimum 50 pound tensile strength. 3. Remove sediment deposits as necessary to provide adequate 7 ® E.W 5. When a wire mesh support fence is used,space posts a maximum of 8 feet apart.Supports should be driven securely storage volume for the next rain and reduce pressure on the into the ground a minimum of 24 inches. fence.Take care to avoid undermining the fence during E N Scale: 111=201 Construction: Maintenance: 6. Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence.Securely fasten the cleanouts. �S C t 1.Clear the entrance and exit area of all vegetation,roots,and other objectionable 1,Per NCG-01 inspect at least once a week and after each filter fabric directly to posts.Wire or plastic zip ties should have a minimum of 50 pound tensile strength. 4. Remove all fencing materials and unstable sediment deposits Sand Filter Outlet Structure (D 1 ) material and properly grade it. 1 Inch or greater ralnfallj Make any required repairs 7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope and bring the area to grade and stabilize it after the contributing \ �� Sheet No. (NTS) 2.Place the gravel to the specific grade and dimensions shown on the plans,and Immediately, from the barrier. drainage area has been properly stabilized. 7, smooth it. 2,Maintain the gravel pad in a condition to prevent mud or 8. Place 12 inches of fabric along the bottom and side of the trench. C 'Z Know What S Uelow. 3.Provide drainage to carry water to a sediment trap or other suitable outlet. sediment from leaving the construction site, This may 9. Backfill the trench with soil placed over the filter fabric and compact.Thorough compaction of the backfill is critical to w Call before you dig. 4.Use geotextile fabrics in order to improve stability of the foundation in locations require periodic topdressing with 2 inch stone, silt fence performance. Z subject to seepage or high water table. 3,Immediately remove all objectionable materials spilled, 10. Do not attach filter fabric to existing trees. b washed or tracked onto public roadways, r C2 CONSTRUCTION ENTRANCE/EXIT �'"`�"""`""�"� SILT FENCE CONFIDENTIALITY STATEMENT: THIS DRAWING IS THE PROPERTY OF INNER BANKS ENGINEERING SERVICES,PC.THIS INFORMATION IS CONFIDENTIAL AND IS EFFECTIVE DATE ll/12/202p EFFECTIVE HATE IL12/2020 TO BE USED ONLY IN CONNECTION WITH WORK DESCRIBED BY INNER BANKS ENGINEERING, PC NO PART IS TO BE DISCLOSED TO OTHERS WITHOUT EXPRESS WRITTEN PERMISSION FROM INNER BANKS ENGINEERING, PC