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Home My WebLink About20140311 Ver 1_More Info Received_20140428Homewood, Sue From: Chris Brown < Chris .Brown @Mcgillengineers.Com> Sent: Monday, April 28, 2014 1:15 PM To: Homewood, Sue; Bailey, David E SAW Cc: Doug Chapman Subject: Morinaga Plan Attachments: 70817_C -200 GRADING EC PLAN.pdf Sue, Here is Morinaga's grading /erosion control plan showing the buffers. David, We are currently making the changes you have asked for on the Plat map and will forward a copy of that for review as soon as we get it. Thanks, Christine Christine D. Brown, CPSWQ, CPESC Engineering Technician III 1240 191h Street, Lane NW I Hickory, NC 28601 Phone: 828.328.2024 1 Fax: 828.328.3870 Email: chris.brown @mcgillengineers.com I Website: www.mcgillengineers.com 1 z n LU Z rr c c 00 c N 0 0 n L 7 rr 1 cis 0 ----------- -- - ------------ SEE GRADING DETAIL SHEET C-706 ----------- C) ---------- - --- ----------- a . . ..... ... ;,7 - - ------------------- ................ low 4 e 5 - -------------- .... ...... SEE GRADING DETAIL W ------------------ ... . . ........ I—— z 11 -1, "1 , I , s - - - - - - - ------- - SHEET C-706 4 - -------------- -------------- see so- 00 1 )", _6 - ------------------ I t 675- T ------- ----- . .... ...... )&T -NCD T ROAD WIDTH 675 80' FULL EROSION CONTROL & GRADING NOTES 711 , / - --- `,11,� \ ", I , \ I", \\ I / I i" e . ........... , 'I', - __ I'll ------ - - ------ -OF-WAY �_777 RIGHT A _._<77 1. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL COMPLY TO THE LATEST EDITION OF THE p b I --------------- NCDENR NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL, . ........ . 4- "-66" t 2w," .. ........ _4 PA 5 . .. . .. 665" - - - - - - -- 61 rov 0771, V "1 75 2. ALL SEDIMENT AND EROSION CONTROL MEASURES SHALL BE IN PLACE PRIOR TO COMMENCEMENT OF ANY LAND DISTURBANCE. b,0 50,00' SETBACK 6, I PV f . ..... I /eq- 65 ab 3. CLEARING AND GRUBBING IS REQUIRED ON ALL AREAS WHERE GRADING, EXCAVATION AND FILLING WILL e BE DONE, GRUB TOP 6 APPROXIMATELY, TO REMOVE ORGANIC MATERIAL AND DISPOSE AT AN w J FG 672.54 is( FG 671.94 APPROVED LOCATION, 3 �;e . ..... 6� 66 FG 673.25 66b, .... .. .... . 0 e 4. ALL EARTHWORK OPERATION SHALL COMPLY WITH OSHA CONSTRUCTION STANDARDS. 65, ........... ij " , I � � 1 - \ 'w", A / ee," iz,, �0' s, . .. . ................ ---- bb ;e- IN , - - r ........... . .... j' �4, 5. FILL MATERIAL SHALL CONSIST OF CLEAN SOIL, FREE OF ORGANIC OR DELETERIOUS MATERIALS, ROCKS 7 OR BROKEN PIECES OF CONCRETE LARGER THAN THREE INCHES IN SIZE, OR ANY OTHER FOREIGN r i �,, 665 FG 673.25 FG-9 OBJECTS THAT COULD IMPEDE THE COMPACTION RESULTS. 672,83 41 s Vt . ............ ...... _G 659,00 q� e, FG 673 25, 7 el l'co 6. FILL MATERIALS SHALL BE SPREAD EVENLY IN HORIZONTAL LAYERS OF NOT MORE THAN 8 INCHES IN A FG I i , LOOSE LIFTS OVER THE FULL WIDTH OF FILL AND COMPACTED TO AT LEAST 95% MAXIMUM DRY DENSITY F, S ER bA�IN-#] 0 r, '' 7' , , '' �r I - "A / /, / i , 1\ 673 39" 664 KIMM 66 :7, 668.00 Lo FG 672.95 BY STANDARD PROCTOR COMPACTION TEST, ASTM D698. 668 ;;;*000 73 FG 672.80 0. 0 -��FG 672.59 ..... . ... 6 FG 6 . ... ... .... . I -1 FG 672.47, FG 67198 1 673 0V FG 6172,44 1 s, e "';�4 77� 6 �FG 0 F6 673.00 7. MAXIMUM CUT OR FILL SLOPES SHALL BE 2H:lV. SLOPES ARE DRAWN AT 3:1 ON THIS PLAN. FG 672.00' FG/TC 6 7 3.10 �j '�1(G 673.25 'iss 673.5' N P f 8, PROVIDE EROSION CONTROL MATTING ON ALL SLOPES 3:1 AND GREATER. ,;,FG 672.87,; e 6bb FG 672.00 e; re, 00111,,"isill-s F s WIWI IFG V//../U sss� 672,79,5 a, _FG/TC 673.65 FG 673.12 FG 673.33r', 9. STAKE STRAW WATTLES ON ALL SLOPES STEEPER THAN 5:1 AND TALLER THAN 3' MEASURED e" e e VERTICALLY FROM TOE TO TOP OF SLOPE. STRAW WATTLES SHALL BE INSTALLED APPROXIMATELY LEVEL e FG 672.00 IP 9'FG/TC 673.86,\ I A 'FG 668.00 FG 672.80 s 667,- FG 672.94 /` , 0 ALONG THE SLOPE FACE AND SECURED EVERY 4' WITH 18" LONG WOOD STAKES MINIMUM, WATTLES 5"'4400 FG 672.50 00 FG 673.25 IFG 667.40 1 \ I SHALL BE INSTALLED AND TRENCHED IN PLACE AS TO NOT ALLOW RUNOFF TO ESCAPE UNDERNEATH. A ""i, i A", F� 673.02 s111 1`11 Ow MINIMUM OF TWO ROWS ARE REQUIRED TO BE INSTALLED AT TOP AND TOE OF SLOPE. INSTALL 1 `FG 67352 FG 6�2 86 00 . ......... b FG 671.99,"",- ee I ( is MOM V F s G 658.01 A FG 673 25 ADDITIONAL ROWS OF STRAW WATTLES AS NEEDED BASED ON SITE CONDITIONS. FG/TC 67352 A_ FG 673.90�,' FG/TC 673.60 _673 6bgf� I s e\"�11 """" I �ON I 111_� I "" , -, "I, FG 673.60 10, GRADE TO PROVIDE POSITIVE DRAINAGE AWAY FROM BUILDINGS. w sow.......... FG 673.2b ------ e FG 673,68 5 67b F G 670.34 FG/TC 673.75 11. SEE GEOTECHNICAL ENGINEER FOR RECOMMENDATIONS CONCERNING PROPER PLACEMENT AND FG 671.21 �U 1573.68 COMPACTION OF STRUCTURAL FILL. G 673.25 jX') is 71147,J FG 6 'row. "-w 0, FG 673.87, 12. STABILIZE GROUND PER TABLE THIS SHEET WITH MULCH, WHEAT STRAW, OR GRASS. GRADING AND EROSION CONTROL LEGEND TOTAL SITE SKIMMER POND COIR BAFFLE 237700 COIR WATTLE CHECK DAM - GRUBBING GRAVEL CONSTRUCTION ENTRANCE cu yards INLET PROTECTION (8�OOOSF X 4.33') = 11283 RIPRAP + OVEREX S. B10-RET SLOPE DRAIN cu yards SEDIMENT FENCE (WIRE BACKED) 197567 SKIMMER TOTAL FILL STRAW WATTLE ON SLOPE cu yards TEMPORARY DIVERSION (BERM/DITCH,, EG EXISTING GRADE FG FINISH GRADE TIC TOP OF CURB FF FINISH FLOOR -675- DESIGN CONTOUR 0 0 TREE PROTECTION FENCING o -a--� SEDIMENT FENCE CONSTRUCTION FENCE STRAW WATTLE GRAVEL CONSTRUCTION ENTRANCE �7 r"i, �e RIP RAP ro uti-ji CID xf "J 13. CONTRACTOR SHALL NOT TRACK OUT SOIL FROM SITE. KEEP VEHICLES LEAVING THE SITE ON CLEAN, G 674.00 ..... ..... . _F 1,11,1111-11,111, . ..... 673.8� b 1 FG 673.65 PAVED SURFACES. WASH TIRES IN AN APPROVED MANNER IF NEEDED BEFORE LEAVING THE SITE. 672- . ..... Q, FG 673.90 'DETA SEE GRADING IL FG 674.00 14. WHEN THE DEVELOPED SITE HAS BEEN PROPERLY STABILIZED, ALL THE TEMPORARY SEDIMENT AND SHEET C-201 EROSION CONTROL MEASURES WILL BE REMOVED, THE DISTURBED AREA GRADED TO BLEND WITH THE 73\ 6 SURROUNDING AREA, AND VEGETATED. WORK. ....... . . XI LIMITS 15. EXISTING SITE IS AGRICULTURAL, STABILIZE AND PERMANENTLY SEED ALL EXPOSED AREAS ON SITE WITH APPROVED SEED MIXES PER C202. j1 IP . . .. .. ... ... .... FG 673.50 I M ATE EXTENT MAINTENANCE PLAN EA LAYDOWN/ STAGING AR, Je APPR,QX OF CONSTRUCTION FG 673 2 .52 .. . ... . ... 1. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND OPERATION JFG 673.901.1",,) e FOLLOWING EVERY RUN-OFF PRODUCING RAINFALL BUT NOT LESS THAN ONCE EVERY WEEK, 675 A. . ...... FG 675.15 SF . .. ...... ... ell e 2. SKIMMER BASIN WILL BE CLEANED OUT WHEN THE LEVEL OF SEDIMENT REACHES 2.0 FT BELOW THE TOP it FG 673.87 G 675.28 1 i� I ; PROPOSED BUILDING Is,, FG 673.90 OF THE RISER. GRAVEL WILL BE CLEANED OR REPLACED WHEN THE SEDIMENT POOL NO LONGER DRAINS ... . ....... is 1 FG 674.00 s PROPERLY. TF"`- 674.0 �s` 3. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES 0.5 FEET DEEP H AT ss 7 FG LO THE FENCE. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A BARRIER. 673.90 Are FG 673 30 4. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY AND MULCHED ACCORDING TO FG 672.8 er el SPECIFICATIONS IN THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER. N e f" d 01 (D FG 673.3 Tj f s, ��,,FG 673.90 FG 6 5.28 s e e, �\FG 674.00 el, j 673.60 e IP G J FG 673 90 FG 675.28 FG 673.60 ...... ... .. . FG 67 LO 3.50 is i/ s A Oe i st FG 673.60 FG "6"72.20 FG 673.55/ i F G 673.60 FG 672.80" 17 FG 673.90 f r G 0 -'sc F 674.0 FG 674.00 F FG 673 00 TW 674.50 G 673.50 FG 673.90':" �1 FG 670.00 FIG 674.00 TW 6,74,50 0/ FG 669.75 M FG 673.90 J I P FG 674.00 FG 673.90 FG 672.20 . .... . FG 673.50 (0 'N . ...... �APPROXIMATE,,EXTENT OF CON'STRUCTION FG 674.00 FG 67285 eci '1 FG 673.90 MATERIAL STOCK,,kLES 01 FG �74.00 FG 673.00 - Ji .673 670 1 FG 674,15 FG 67�,00 FG 672.50 _gy CUT/FILL ESTIMATE TOTAL SITE TOTAL CUT 237700 CU yards - GRUBBING (366,OOOSF X 6") = -67778 cu yards + OVEREX N. 1310-RET (8�OOOSF X 4.33') = 11283 CU yards + OVEREX S. B10-RET (81490SF X 4.331) = 19362 cu yards ADJUSTED CUT 197567 cu yards TOTAL FILL 97354 cu yards - GRAVELICONCAC(366,000SF X 1') = -137556 CU yards ADJUSTED FILL -47 202 cu yards NET :3 L CUT: 15,365 cu yaras L J X FG 673.80 NOTES: FG 672.43 F�'673.8 1. CUT AND FILL ESTIMATES ARE ENGINEER ESTIMATES ONLY. ACTUAL QUANTITIES FG 672.60 66 RR WILL VARY DEPENDING ON FINAL GRADING IN THE FIELD DURING CONSTRUCTION. WORK LIMITS CONTRACTOR RESPONSIBLE FOR PREPARING/ESTIMATING CONSTRUCTION 7 CLASS,/B 0 3fx6pl; 1 EARTHWORK CALCULATIONS FOR BIDDING AND CONSTRUCTION ACTIVITY. I P I P . ... ...... 673, . . .... . . . . FG 672.74 EROSION CONTROL NARRATIVE D EXIS 7 TING CONDITIONS: THE EXISTING SITE WAS MOST RECENTLY AGRICULTURAL LAND PRODUCING SOYBEANS WITH MOST SLOPES .. ... . . . -10%. PER A SITE VISIT IN JULY OF 2013, THE LAND WAS STABILIZED WITH RANGING FROM 1% TD URE GRASS. THE FAR SOUTHERN PORTION OF THE PROPERTY HAS HEAVY TREE COVER S 70 FG 667.7 ei WITH SLOPES EXCEEDING 20%. GEOTECHNICAL INVESTIGATIONS BY FROEHLING & ROBERTSON, INC FOUND 6 (0 4 FG 669.20 z THE EXISTING SOILS ARE HIGH IN SILTS AND CLAYS AND HAVE VERY LOW INFILTRATION RATES, THE A FUTURE BUILDING PAD: x r SITE HAS A RIDGE LINE IN THE NORTHERN HALF OF THE PROPERTY CREATING EXISTING DISCHARGE POINTS TO THE NORTH AND SOUTH. LEVATION 03.0 PLACE EXCESS'FILL UP TO/E 'CE WITH GEOTECHNICAL Ito ?sI ACCORDAN UENCE: 2ING ENGINEER RECOMMENDATION, INCL PROPERLY STRIPPING AREA P�IdR TO FILL 1. OBTAIN ALL REQUIRED PERMITS PLACEMENT, BENCHING AND M'AXIMUM 2. HOLD PRE-CONSTRUCTION MEETING ON SITE FINfSHED SLOPES. 564 ::6 00 F 3. FLAG WORK LIMITS G 673.04 is0000 SF FG 673.,04' s4. COORDINATE WITH COUNTY FOR CONSTRUCTION ENTRANCE CONSTRUCTION AND INSTALL HIGH VISIBILITY FENCING, loop PERIMETER CONTROL AND MAINTAIN THROUGHOUT CONSTRUCTION (TEMPORARY DIVERSIONS FG 674.001 JU ft x FG 674.00 _E PORARY "" SKIMMER BASIN PROTECT HISTORIC CHURCH BTM=662.0 PROPERTY FROM DAMAGE . . ... .. ........ ........ SEDIMENT FENCE) RIK LIM I TS 5. INSTALL SKIMMER SEDIMENT BASINS INCLUDING BANK OVERFLOW, SKIMMER, 3 BAFFLES, 10,700 M I N PERM AN ENTLY, SEED �),4 61 "CLASS T, 0 p AREA SL=103 OUTLET STRUCTURE, AND OUTFALL (WILL BECOME STORM DETENTION PONDS). ROUGHEN, PPE . . ........ . ..... TOP BERM,;,:6 WIDE .. . ..... ... x X OF ,S SHOWN AS 3:1 . ........... . FUTURE MAImum, 2:1 SLOPE X SEED AND MULCH SLOPES. WWTP 6. INSTALL SLOPE DRAINS INCLUDING RIP RAP TF -715T4 0 . . ... ..... .. . . 7. GRUB AND ROUGH GRADE SITE 8. SPRINKLE EXPOSED AREAS FOR DUST CONTROL IF NEEDED or, s9. CONSTRUCT GRAVEL CONSTRUCTION ROADS WHERE PERMANENT ROADS/ PARKING ARE CE TD . .. ....... 77 SHOWN . ...... .. . 671 is10. INSTALL EROSION CONTROL MATTING ON SLOPES STEEPER THAN 3:1 IF FINAL GRADE IS 7�, S 6 SF 6 ACHIEVED AND STABILIZE WITH SEED AND MULCH AND INSTALL STRAW WATTLES ON SLOPES. Or 77:,,7:66 . . ... is11. INSTALL ADDITIONAL TEMPORARY DIVERSIONS AND SEDIMENT FENCE IN SITE INTERIOR As E . ..... NEEDED AND DISCHARGE TO FIRST CELL OF SKIMMER BASINS. INSTALL TEMPORARY z . . ....... TREE PROTECTION 'FENCING. . ... ........ ... ..... ... DIVERSIONS WITH SLOPE DRAINS ON ALL SLOPES STEEPER THAN 3:1 INCLUDING SOIL STOCK .. ...... . . TBACK .. . ...... 12. TEMPORARILY STABILIZE OR PERMANENTLY STABILIZE AREAS IF POSSIBLE PER NOTES A 20.00' SETBACK PILES, BOVE see. ..... AND PERMIT REQUIREMENTS VV I 13. INSTALL UTILITIES FG 666.5077�, . .............. isRR 48'xs�' 'CLASS,, B! ............. 14. INSTALL ROCK INLET SEDIMENT PROTECTION TRAP ON CATCH BASINS 665 FG 663.50 'SPR�A RADE USH' 20.00' SET'B� 15. PERFORM FINAL EARTH GRADING WITH Gs �CK DER FL SKIMMER BASIN-#Z� .... ... ... S B L W1TH:GEQTEXTIeLE,,i' xl.'5', CLS . . . . . . 16. REMOVE SEDIMENT FROM SKIMMER SEDIMENT BASINS AND GRADE STORMWATER DETENTION 666.59 SEE GRADING DETAIL, 3'x25' INED SHEET C-201 s. . . ... .. . . PONDS PER PLAN. 17. ROUGHEN REMAINING SLOPES STEEPER THAN 3:1 AND INSTALL EROSION CONTROL M ATTING AND STRAW WATTLES. I TS (LANDSCAPE OR ROCK IMPERVIOUS AREAS) WORKeLIM SF .... . ... . . 18. PERMANENTLY STABILIZE SITE -RETENTION FACILITIES (PROTECT FROM SEDMI EN TAION -INSTALL BERM 19. CONSTRUCT BIO AROUND PERIMETER IF CONSTRUCTED IN PARALLEL WITH OTHER GRADING) FG 666.00' . ..... 20, REMOVE ROCK INLET PROTECTION AND REPLACE WITH INSERTED FABRIC PROTECTION t: I i I / , , I __ ", s� -_ - - "I, " ", "1", 11 ;;O"� 1 11""", 1 1 / , i 1__.�;,,,20,00' SETBACK' SITE SUMMARY TOTAL SITE DISTURBED % DISTURBED ADDITIONAL DISTURBED AREA AREA (AC) AREA (AC) SI TE IN ROW (AC) 21.00 14.69 70% 0.47 :::] 21. PERFORM PAVING AND CONCRETE WORK 22, REMOVE SKIMMER AND FINALIZE STORMWATER POND OUTLET CONFIGURATION 23, REMOVE EROSION CONTROLS ONCE STABILIZED 24, COORDINATE FINAL INSPECTION, AND ADDRESS ANY PUNCH LIST ITEMS SITE 4 )3/04/14CITY COMMENTS SITE 3 )3/04/1 P-BUILDING 2 )2/10/1 IFP-SITE GRADING 1 Di/14/14,PRELIM CITY REVIEW # DATE� DESC. \' , 11IM1111 4 CARnt' SEAL 039432 E LU 00 (L q 0 Im 0 IN J N E < 0 01) LU qq @) 00 (r Z LU M 00 LU 0 c z z LU 0) IL Livermore A&E JOB NO: 212019.00 InSpec Group JOB NO: 212CFA04 I 0 z 0 0 LL 0 X LU 0 < L Id 0 44% o Z Q z _j 5) z Ld z 0 LLJ Ld z 2 :E DRAWING TITLE: GRADING AND EROSION CONTROLPLAN DRAWN BY: JK CHECKED BY:GN Uj LIM (L IL z 3: 0 6 z w M� 0 LLI w 0) w It _j _j 1 D 0 x z z i w w z Ld 4 w w x 0 0 I 0 0 V) D lot It, N Lb Lb r- M LO 0 L C 0) ()) 41 0 LO Lf) 0 . - C'n ro L Q 0 0 :3 L c 0 LO Lr) 41 L J X c LL L 0 00- InSpec Group JOB NO: 212CFA04 I 0 z 0 0 LL 0 X LU 0 < L Id 0 44% o Z Q z _j 5) z Ld z 0 LLJ Ld z 2 :E DRAWING TITLE: GRADING AND EROSION CONTROLPLAN DRAWN BY: JK CHECKED BY:GN Uj LIM (L IL z 3: 0 6 z w M� 0 LLI w 0) w It _j _j 1 D 0 x z z i w w z Ld 4 w w x 0 0 I