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Home My WebLink About018 C303.pdfWAV too 0 I 2- WIN Mill =011IRWAild DIRECTIONS FOR MAINTENANCE CONSTRUQTIQN STEP 4: TEST THE SUBQ_RADE SOIL INFILIR_A I TI _SY31EMS QNLY) CON5IRQQ QN 5TEP 11: AS -BUILT INSPECTION TLON ATE (INALTRA ON, D 1. IF THE SOIL TEST SHOWS AN INFILTRATION RATE(S) THAT ARE LOWER THAN THE RATE(S) USED IN THE ANAL DESIGN, 1. AFTER INSTALLATION, AN APPROPRIATELY LICENSED NC PROFESSIONAL MUST PERFORM A FINAL AS -BUILT INSPECTION IT WILL BE CRUCIAL TO COMMUNICATE WITH CONSTRUCTION AND MAINTENANCE STAFF THEN THE DESIGNER MUST CHECK THE CALCULATIONS AND MAY NEED TO ADJUST THE DESIGN. AND CERTIFICATION THAT INCLUDES: ABOUT THE LOCATIONS OF PERMEABLE PAVEMENT AND THE REQUIRED MANAGEMENT A. ENSURING THAT THE INSTALLATION REMAINS IN GOOD CONDITION AND THE SURFACE IS FREE OF FINES. PRACTICES FOR KEEPING PAVEMENT UNCLOGGED. CONTRACTOR AND MAINTENANCE STAFF MUST. CONS RUCTION STEP 5: PLACE GEOTEXTILES ANQ QEOMEMBRANE (IF,,-APPLICABLU B. CHECKING THAT ALL PERVIOUS SURFACES ARE DRAINING AWAY FROM THE PAVEMENT AND THAT THE OVERALL SITE IS 1. FREQUENTLY HAND -BLOW THE SURFACE OF THE PERMEABLE PAVEMENT, ESPECIALLY STABILIZED. DURING THE FALL AND SPRING TO REMOVE LEAVES AND POLLEN BEFORE THEY 1. IF USING GEOTEXTILES OR GEOMEMBRANES, THEN FOLLOW THE MANUFACTURER'S RECOMMENDATIONS SO FOR THE C. VERIFYING THAT THE PAVEMENT WAS INSTALLED PER THE DESIGN. CAUSE IRREVERSIBLE DAMAGE TO THE PAVEMENT'S PERMEABILITY. APPROPRIATE OVERLAP BETWEEN ROLLS OF MATERIAL. D. PREPARING THE AS -BUILT PLANS THAT INCLUD':' ANY CHANGES THE UNDERDRAINS, OBSERVATION WELL LOCATIONS, l- 2. DO NOT STOCKPILE SOIL, SAND, MULCH OR OTHER MATERIALS ON THE PERMEABLE 2. SECURE GEOTEX11LE OR GEOMEMBRANE SO THAT IT WILL NOT MOVE OR WRINKLE AS AGGREGATE IS PLACED. TERRACE LAYOUTS, AGGREGATE DEPTH OR STORAGE STRUCTURES, ANY REMSED CALCULATIONS, ETC. PAVEMENT. F. TESTING THE PERMEABILITY OF THE PAVEMENT SURFACE USING THE NCSU SHALLOW HEAD INFILTRATION TEST (SEE 3. LAY DOWN TARPS TO MINIMIZE SPILLAGE ONTO THE PERMEABLE PAVEMENT WHENEVER CQNSTRUCTION STEP I CH BASINS, OD _ERVATIQN WELL(S) AND UNDERDRAIN SYSTEM MAINTENANCE SECTION 18.5.5) OR OTHER APPROPRIATE TEST SUCH AS ASTM C1701 STANDARD TEST METHOD FOR SOIL, SAND, MULCH OR OTHER MATERIALS WILL BE TRANSPORTED OVER PAVEMENT. -.2LAM Q��! INFILTRATION RATE OF IN -PLACE PERVIOUS CONCRETE. PLACE THE CATCH BASINS AND OBSERVATION WELLS ACCORDING TO THE DESIGN PLANS AND VERIFY THAT THE ELEVATIONS 4. COVER STOCKPILES NEAR THE PERMEABLE PAVEMENT. ARE CORRECT. IF AN UPTURNED ELBOW DESIGN IS BEING USED, THEN THE UNDERDRAINS WILL BE PLACED FIRST. VERIFY 2. ANY DEFICIENCIES FOUND DURING THE AS -BUILT INSPECTION SHALL BE PROMPTLY ADDRESSED. 5. BAG CRASS CLIPPINGS OR DIRECT THEM AWAY FROM THE PERMEABLE PAVEMENT. KEY POINTS OF THE DESIGN, SUCH AS: - 6. NOT BLOW MATERIALS ONTO THE PERMEABLE PAVEMENT FROM ADJACENT AREAS. 1. ELEVATIONS OF THE UNDERDRAINS AND UPTURNED ELBOWS ARE CORRECT. CURB CUT/ DISCHARGE WIER FOR 18" VERTICAL CURB 7. NOT APPLY SAND DURING WINTER STORMS. 2. DEAD ENDS OF PIPE UNDERDRAINS ARE CLOSED WITH A SUITABLE CAP PLACED OVER THE END AND HELD FfRMLY IN FLUME, SEE PLAN FOR LOCATION. EMBEDDED RING 8. IMMEDIATELY REMOVE ANY MATERIAL THAT IS DEPOSITED ONTO THE PERMEABLE PLACE. INFILTROMETER KIT PAVEMENT DURING CONSTRUCTION OR MAINTENANCE ACTIVITIES. REMOVE LARGE 3. PORTIONS OF THE UNDERDRAIN SYSTEM WITHIN ONE FOOT OF THE OUTLET STRUCTURE ARE SOLID AND NOT PERFORATED. RECESSED LANDSCAPE (ERIK) MATERIALS BY HAND. REMOVE SMALLER ORGANIC MATERIAL VIA HAND BLOWING. AREA AT FLUME (TYP.) 12" MIN. OPERATION AND MAINTENANCE INSPECTING OBSERVATION WELLS /x, X AFTER PERMEABLE PAVEMENT IS CONSTRUCTED, IT MUST BE INSPECTED ONCE A 24 HOURS AFTER EVERY STORM EVENT EXCEEDING 1.0 INCH OF 'X" i8% VOIDS MIN._'. x\\� QUARTER AND WITHIN RAINFALL. ANY DEFICIENT BMP ELEMENTS NOTED IN THE INSPECTION MUST BE THE OBSERVATION WELL ALLOWS THE OWNER TO DETERMINE HOW WELL THE AGGREGATE BASE AND UNDERDRAINS PAVEMENT X AN AFFECT ARE FUNCTIONING. T CORRECTED, REPAIRED OR REPLACED IMMEDIATELY. THESE DEFICIENCIES C FOLLOW IHESE STEPS TO INSPECT THE OBSERVATION WELLS: COURSE x", THE INTEGRITY OF THE STRUCTURE, THE SAFETY OF THE PUBLIC AND THE x 1 . WAIT UNTIL FIVE DAYS AFTER A RAINFALL EXCEEDING 1.0 INCH (OR 1.5 INCHES IF lN A COASTAL COUNTY). IF EFFECTIVENESS OF THE PERMEABLE PAVEMENT. NO ADDITIONAL RAIN OCCURS IN THE FIVE DAYS, OPEN EACH OBSERVATION WELL. 25% VOIDS IMPORTANT MAINTENANCE PROCEDURES IN ADDITION TO THE TABLE BELOW: -'--,,STONE 2. VISUALLY ASSESS WHETHER WATER IS PRESENT, OR IF VISUAL ASSESSMENT ISN'T POSSIBLE, USE A WEIGHTED RESERVOIR PARENT 1 . THE PAVEMENT MUST BE KEPT FREE OF DEBRIS AND PARTICULATE MATTER AT ALL STRING OR OTHER WATER -LEVEL MEASUREMENT METHOD. SOIL TIMES THROUGH FREQUENT BLOWING, PARTICULARLY DURING THE FALL AND SPRING. 3. IF WATER IS PRESENT, THE SUBSURFACE IS CLOGGED OR UNDERDRAINS ARE NOT FUNCTIONING. NOTE THE j 2. PARTICULATES SUCH AS SOIL, SAND AND MULCH SHALL NOT BE PILED ON THE LOCATIONS OF THE OBSERVATION WELLS WITH WATER PRESENT. 4 OZ MIN. NON -WOVEN FILTER FABRIC -1 PAVEMENT. 4. THE OWNER (OR SITE MANAGER) SHOULD CONSULT THE DESIGNER OR OTHER APPROPRIATE PROFESSIONAL. SUBGRADE 3. ONCE A YEAR, PERFORM A SIMPLE INFILTRATION TEST (EXPLAINED IN SEC11ON 18.6.4 AND 18.6.5) ON THE SURFACE OF THE PAVEMENT. SEE "TYPICAI. SECTION -PERVIOUS CONCRETE PAVING" FOR DESIGN DEPTHS 4. SWEEP THE PAVEMENT WITH A VACUUM OR REGENERATIVE AIR SWEEPER WHENEVER THE SIMPLE INFILTRATION TEST INDICATES POOR INFILTRATION RATES. PERVIOUS CONCRETE WiVERTiCAL CURB (TYR) 5. SNOW AND ICE MUST BE REMOVED BY PLOWING, NOT SAND, SALT OR CHEMICAL N,T.S. DEICERS. SET THE BLADE ON THE PLOW ONE INCH HIGHER THAN USUAL. SNOW CAP FLUSH OR RELOW TOP OF PAVEMENT. r-STANDAP0 V-6" SHALL NOT BE PILED ON THE PAVEMENT SURFACE. I I CURB ANP 137UITER BMP Element: Potential Problem: How to Remediate the Problem: The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove permeable pavement erosive gullies have formed. the gully, then plant a ground cover and water until it is established.-, - A vegetated area drains Regrade the area so that it drains away toward the pavement. from the pavement, then plan aground cover and water until it is established. The surface of the permeable Trash/debris is present. Remove the trash/debris. pavement Weeds are growing on the Do not pull the weeds (may pull out surface of the permeable media as well). Spray them with a pavement. systemic herbicide such as glyphosate and then return within the week to pull them by hand. (Another option is to pour boiling water on them or steam them.) Sediment is present on the Vacuum sweep the pavement. surface. The structure is deteriorating Consult an appropriate professional. or damaged. The pavement is rutting, Consult an appropriate professional. cracking or slumping. Observation Well Water is present more than Clean out clogged underdrain pipes. five days after a storm event. Consult an apropriate professional for clogged soil subgrade. Educational Sign The educational sign is Replace the sign. missiniz or has been damaged. I PERVIOUS kPAVEMENT PERVIOUS CONCRETE PAVEMENT I V I., . . 01>' '. 6 1 -1 PERVIOUS PAVEMENT t-11 MIN Z3UNtVV UM I-LA14Ur- I Trr- III.,VVIC-M. X\VTEMPORARY PERIMETER RING (REMOVABLE) PVC COUPLING �SCH 40) TEMPORARY PERIMETER RING (REMOVABLE) moffilm 1 1 12" M I N. 18% VOIDS WN. , _,,�25% VOIDS 121' PERVIOUS CONCRETE 00 F III of WATER DRAINS TO SOIL SAND`Nc�, �h�sr-Ao - ING, NOTES: 1. SIGN SHALL BE 0.080 GAUGE ALUMINUM. 3/8- (WHITE PANTONE 359 FOR GREEN BACKGROUND .25" LETTEN AND PANTONE 300 FOR BLUE ARROWS. .4" LETTERS 2. THIS SIGN SHALL BE POS I W AT LETTERS PRE -DETERMINED LOCATIONS PER THE .8" APPROVED SITE PLAN. .5" LETTERS 3. SIGN TO BE MOUNTED ON POST WITH 5/16- S.S. NUTS AND BOLTS. .4" LETTERS PLACE ONE SIGN (MIN.) AT EACH PERVIOUS CONCRETE PAVED PARKING AREA. EIGHT (8) AREAS THIS PROJECT. H=11 USE 5/16" S.S. BOLTS ' LOCK WASHER & NUTS TO FASTEN 1/8" THICK HOT DIPPED GALVANIZED STEEL STABILIZER PLATE 8*-051 X 21; HOT DIPPED GALV. SQUARE -CHANNEL POST TOP MEW 10" 0111I.- 0 0 FOR SIGN POST ANCHORING SEE DETAIL RIGHT (OTHER ANCHORING DETAI PERM D APPROVAL BY CITY ENGINEERING) FRONT VIEW TYPICAL PERVIOUS CONCRETE PAVEMENT SIGN N�T�& z-- CONCRETE PAVEMENT 4 4 1z �vy, N.T.S. PERVIOUS CONCRETE PAVEMENT -= D - 6p* 4 4 4 A4 4 4 10" MIN. I 1EE 11 716 Ds 360# CLEAN DOUBLE WASHED #57 COARSE AGGREGATESUBBASE, STONE RESERVOIR (2% OR LESS PASSING ASTM NO. 200 SIEVE). WHEN DEPTH EXCEEDS 10" DUE TO SLOPE REQUIREMENTS, THE BOTTOM 6" SUBBASE SHAIJ - BECOME #30R#4 WASHED COARSE AGGREGATE SCARIFIED, RIPPED, OR TRENCHED SUBGRADE (IN -SITU SOIL MIN. 0.5"/HOUR PERMEABILITY W/ 0% SLOPE - 0.5% SLOPE MAX.) (IMPORTED SOIL. MIN� 0.5" /HOUR PERMEABILJTY W/ 0% SLOPE - 0.5% SLOPE MAX.) TYPICAL SECTION - PERVIOUS CONCRETE PAVING N,T,S. /-CONVENTIONAL CONCRETE TURN DOWN SIDEWALK/CURB 12" MIN. D 4 7 Vol MIN.:� PAVEMENT AI COURSE > X 2 X 25% VOIDS C TC)KIF //1, z, CURB CUT " DISCHARGE WIER FOR-,/ X PAR RESERVOIR SEE PLAN FOR LOCATION. kx _7 -PERMANENT PERIMETER RING FLUME. ENT _j SOIL 24" MIN.-- 12 PARENT - 6" PV%rd' COUPLING (SCH 40) SOIL 4 OZ MIN. NON --WOVEN FILTER FABRIC 6" PERFORATED PVC PIPE (SCH 40) 4 OZ MIN. NON -WOVEN FILTER FAS P! C SUBGR DE SUBGRADE S E E "TYPICAL SECTION -PERVIOUS CONCRETE PAVING" FOR DESIGN DEPTHS C-M-P "TYPirAt l,PrT1r)N_PPP\/1r)"Cz rnmrpr-Tr- PAvimnll P-rip nrl-,inNii nirPTNq PF=PVlnHq rnNjr.PF=TF= \A/! THRKj nnvA/NqnFVVAl K/rHRR (C)PTION� � I � I I I � 4" MIN. EMBEDMENT PARENT EARTH I I t I'Lu U kz! 1-j -11-L, IT-,-il PERVIOUS CONCRETE W1 V-6" CURB & ""UTTER EMBEDDED RING INFILTROMETER KIT (ERIK) N-T,S, PERMEA-BLE- - 1 CONCRETE PAVEMENT (PICP) I PAVERS - TOOLED W/ 1/8- RADIUS RIBON CURB - AQUA-BRIC 3 1/4" MIN. THICKNESS NTERLOCKING N.T.S, CONVENTIONAL CONCRETE EXTEND TO FROST DEPTH MIN. -WASHED #78 STONE FOR 1. PAVERS SHALL SHALL BE AQUA-BRIC TYPE 4 PAVERS LOPE JOINT FILL PLA'C'ED IN AN INTERLOCKING HERRINGBONE PATTERN. 2. PAVERS SHALL BE NOMINAL 5"X10"X3j" 3. SHALL BE MANUFACTURED IN ACCORDANCE NTH ASTM 77 COMPACTED SOIL- TIONS 2" MIN. WASHED #78 D C936 SPECIFICA -�18% VOIDS MIN.'�`!* 4 PERMEABLE AT PERIMETER AGGREGATE CHOKING/HE 4. INSTALL PAVERS PER MANUFACTURERS REQUIREMENTS AND DDING 4 TIONS. 4 PAVEMENT 12" MIN. SPECIFICA V MIN' STONE r-p (O.V_)D COURSE 12" MIN.- 5. TEST Rr_ ORTS FOR SUBGRADE SHALL BE PROVIDED TO THE TION. ASTM OR 2" MIN. 4" CLEAN DOUBLE WASHED #57 ENGINEER FOR APPROVAL PRIOR TO INSTALLA VOIDS- D2487, D3385 STONE \xX,x �\\'/XXXII COARSE AGGREGATE COMPACTED BASE - STONE RESERVOIR 6. INSTALLERS SHALL BE CERTIFIED BY INTERLOCKING CONCRETE PAVING INSTITUTE WITH PICR CONSTRUCTION, RESERVOIR 6" CLEAN DOUBLE WASHED #3 _Y MIN�-� INSPEC ION AND DETAILING EXPERIENCE. PARENT PARENT SOIL OR #4 COARSE AGGREGATE SOIL COMPACTED SUBBASE - STONE 12" MIN. SUBGRADE SCARIFIED, RIPPED, OR TRENCHED SUBGRADE RESERVOIR ''Tfi iT SHALL BE THE CONTRACTOR's RESPON,5181�117_y 3' MIN IMPERMEABLE GEOMEMBRANE BARRIER (MIN.O.5"/HOUR PERMEABILITY W1 0% SLOPE 0.5% SLOPE MAX. FOR IN -SITU OR 4 OZ MIN. NON -WOVEN FILTER FABRIC MEMBRANE TO CONLACT 7HE CIWL ENGIAIL-1--R TO 11V50?E 771A, ALL PAI?TIE-5 Al?f- 11V POSSE57SION Of- THE MOST SEE "TYPICAL SECTION -PERVIOUS CONCRETE PAVING" FOR DESIGN DEPTHS IMPROVED SOIL CONDTIONS) CLIRRENT SET 0/-- CONSTRUCTION d0CU1v1f_N7_,5, CONVENTIONAL CONCRETE PAVEMENT MATCH WITH PERMEABLE SECTION TYPICAL SECTION - AQUA-BIRC PERMEABLE PAVERS (PICP) REFORE CONS7RUCTION C,00W�51VC'ES. 17.11N. 4-1 10 F& 4-1 0 0 C\j W C\j 0 C\j E + W Ui 0 0 F"a z W Ld =1 W W Cr > U) W co '1�1- 00 -t C) cy) U) [: 00 r.; CF) %J) 1: 0 I-_ c)) N 0 T- o < f cy) �,t cy) 't 'r- 0 F- LL SE 024911 CONSULTING ENGINEER 4f24 WANDERING LN. N.E. WeKORY, NC 28601 PHONE (828) 320-3367 LM (D VIM# Ar mr-M 00 U-I co C 4) 0 cc c cc > 0 AM ANI C*4 PROjECT PHASE: Permit Drawings PROJECTM DATE: 1% ft R==��==�2012.121107