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Home My WebLink AboutSW1220301_Plansheet - Set_20220609O O U) H U w 3 0 ry IL z O Q i 0 5t (D z ry w w z cD z w Y U_ J g Y U_ J BIORETENTION STAGE/STORAGE = EI t Storage ( t:l I ft I,CUftl 0.00 0.10 �1GG.G0 .533 0.20 21GG.70 1,1)G6 0.30 21.E0 0.40 2166.90 2.133 0.50 2167.D1D 2.666 0,GG0 21G7,10 3,1F� 0.70 21G7.2-0 3,732 0.90 21G7.30 4,2&5 Im 2167.41) 4.739 1.DD 2167.50 5.331 1.05 2167.55 5.635 1.10 21G7,Gr0 5,93B 1.15 21G7.95 G,241 1.20 21G7.70 G,5v 1.25 2197.75 S.wl 1.w 2167.30 7.1.51 1.35 2167.35 7,45L 1.40 21G}7,90 7,757 1.45 21G7.95 2,C60 1.50 21G8.00 2,3G3 PER THE'REPORT FOR PRELIMINARY WETLAND ASSESSMENT' BY S&ME, INC. DATED FEBRUARY 23, 2022, NO JURISDICTIONAL WETLANDS OF THE U.S. WERE IDENTIFED IN THE SUBJECT PROPERTY. APPENDIX G OF THE STORMWATER REPORT INCLUDES THE 2022 ASSESSMENT. IDENTITY AND QUALIFICATIONS OF THE DETERMINATORS CAN BE FOUND IN THIS REPORT. O� �a �? m •♦ `n N \ z�•�� NOTES: 1. CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO CONSTRUCTION ACTIVITY. UTILITY LOCATIONS PROVIDED HEREIN ARE FOR PLANNING PURPOSES ONLY. 2. CONTRACTOR SHALL MAINTAIN AND PROTECT ALL EXISTING SIGNS, LIGHTS, EXISTING UTILITIES AND CIRCUITS UNLESS OTHERWISE NOTED ON THE PLANS OR UNTIL REQUIRED TO BE REMOVED. 3. CONTRACTOR SHALL NOTIFY THE ENGINEER IMMEDIATELY OF ANY DISCREPANCIES IN THE PLANS AND SHALL NOT PROCEED UNTIL CLARIFICATION IS PROVIDED. 4. THE CONTOUR INTERVAL ON THE PLAN SHEET IS 1.0 FT. 5. CONTRACTOR IS RESPONSIBLE FOR FIELD VERIFYING SUITABILITY OF TIE-INS TO EXISTING STRUCTURES. 6. NON -EROSIVE FLOWS ARE LEAVING THE SITE. DROP INLET GRATE ELEV.=2168.30' 18" INV.IN=2160.9' SS MANHOLE RIM ELEV.=2170.38' INV.=2157.6' 0' 15' 30' 60' 90, ill =30' OHE OBE OHS OHE� OHE- OHE 1 ► N �\ BIORETENTION AREA, SEE DETAILS SW-02 & SW-03 X 2175 2166 1 y S_ 2168 1 `` ►' .- 4 x/ 217 \ 2168 / e 2166.5 / 2173 \ \ \ 4" PERFORATED UNDERDRAIN @0.5% ` O TPED \ / PRE-TREATMENT FOREBAY x 2172 \\ \ \ IN,BELL SOUTH r X UNDERGROUND FIBER OPTIC X g ABLE MARKER e' // OCS - / INVERT 162.0, RIM 2167.25. SEE DETAIL 04 \ \ ADA r - TDP S k � 2169 ('1 ^/ 2165_ � � / TPED \ \ELECTRICA� \ S1 S L PFIIFSTAL 1 I S-3 2168 45LF@10.0% , � CURB INLET 0 PHALT J�^PEDESTAt ELECTRICAL _ MULCHED x ELEV.=2165.25' U ` TRANS _ _ _ PATCH S AREAS INV.=2165.9' J---------17 \ - _�� `--J�---r�71 \p_ PROOFJ �S- - - - - - - - - - - - - - --- C-tE$TI Per--��-----�--------- c-� \ FOR'ENCI OSU G _ - - - - TEA FOR�'E•�CH \ X ALK iFi ;T .•E %'..:. : . ' • • . e . DESTAC-' ' : ' ' v • . i . • .. d CROSSWALK . \ A 15" RCP ~ , '' .• SS` TDP WRIGHT BROTHERS WAY ELECTRIC/ Qn CURB INLET ----- - SS MANHOLE I RIM ELEV.=2166.99' J INV.=2157.0 INV. OUT=2154.9' CURB INLET GRATE ELEV.=2163.82' INV. I N=2152.70" RIM ELEV.=2163.22' INV. IN=2154.7' INV. IN=2154.13' INV. OUT=2153.85' >too,. sheville REGIONAL AIRPORT 1 AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.avconinc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION �``�� C A Rol . a° �4FE's's�o� SEAL - - 040195 - gNGINE�`� .y DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA O 0 KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA STORMWATER PLAN ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: 1" = 30' AS NOTED REVISIONS: NO. DATE BY DESCRIPTION 1 06/01/22 NCDELM COMMENTS DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 PROJECT NO. 2021.0076.01 g sw-01 0 0 W i— U Lu 0 z 0 a CD i c� z ry w Lu z 0 z w V _0 J g Y _U J Q U S-6 TOP OF DAM ELEV. 2168.0 INLET PIPE RIP RAP FOREBAY, BOTTOM ELEV.: 2165.0 GEOTEXTILE FABRIC 4" UNDERDRAIN PERFORATED PIPE @ 0.5% SLOPE, WRAPPED IN #57 STONE WITH FILTER FABRIC SPILLWAY INTO BIORETENTION, ELEV.: 2167.5 CLEANOUT PEAK ATTENUATION VOLUME =°II,IIL, ■ ill._..._. SEE MEDIA MIX SPECS BELOW OUTLET CONTROL STRUCTURE, SEE DETAIL SW-04. RISER CREST ELEV.:2167.25 POND BOTTOM (PLANTING SURFACE) ELEV.: 2166.5 DESIGN VOLUME 36" wNE1IL■I _.■. ... :: ill._..._.. NO MECHANICAL COMPACTION DO NOT MECHANICALLY COMPACT THE MEDIA. WATER OR WALK ON IT AS IT IS PLACED. Simple Method for Runoff Volume - Required Drainage Impervious ]A Rv RD, Design Design Volume Basin Area Area �imperviou 10.05 0.9 storm Depth) (3630 * R6 * Rv * A) lac" lac, s Fraction), i3J (in) (Cf) Bioretention 1 '-.6 .36 0.80 0.77 1.0 4,750 SOD TOP OF DAM ELEVATION 2168.0 EMERGENCY SPILLWAY ONLY WHERE SHOWN ON THE PLANS. SEE DETAILS 2167.5 • i i • • �1 VJv � VJV � v� INV OUT: 2162.0 TIE TO EXISTING CURB INLET. INV IN. 2157.5 45 LF OUTLET PIPE. 18" RCP, 10.0% SLOPE Bloretention Cell - Provided Design Volume Surface Area Depth Design Volume Basics Required Provided Provided Provided (Cf) (sf) (ft) (Cf) Bioretention 1 4,750 5,332 1.0 5,812 BIORETENTION SECTION VIEW A -A N.T.S. BIORETENTION MAINTANENCE: • WATERING: PLANTS SHOULD BE SELECTED TO BE TOLERANT OF THE BIORETENTION FACILITY'S PARTICULAR CONDITIONS. WATERING MAY BE REQUIRED TO INITIALLY ESTABLISH THE VEGETATION. WATERING SHOULD NOT BE REQUIRED AFTER ESTABLISHMENT (ABOUT 2 TO 3 YEARS). HOWEVER, WATERING MAY BE REQUIRED DURING PROLONGED DRY PERIODS AFTER PLANTS ARE ESTABLISHED. • EROSION CONTROL: INSPECT FLOW ENTRANCES, PONDING AREA, AND SURFACE OVERFLOW AREAS PERIODICALLY. REPLACE SOIL, PLANT MATERIAL, AND/OR MULCH IN AREAS WHERE EROSION HAS OCCURRED. EROSION PROBLEMS SHOULD NOT OCCUR WITH PROPER DESIGN EXCEPT DURING EXTREME WEATHER EVENTS. IF EROSION PROBLEMS DO OCCUR, THE FOLLOWING ISSUES SHOULD BE RE —ASSESSED: FLOW VOLUMES FROM THE CONTRIBUTING DRAINAGE AREA AND BIORETENTION SIZE; FLOW VELOCITIES AND GRADIENTS WITHIN THE BIORETENTION FACILITY; FLOW DISSIPATION AND EROSION PROTECTION METHODS IN THE PRETREATMENT AND IN —FLOW AREAS. IF SEDIMENT IS DEPOSITED IN THE BIORETENTION FACILITY, IMMEDIATELY DETERMINE THE SOURCE, REMOVE EXCESS DEPOSITS, AND CORRECT THE PROBLEM. • PLANT MATERIAL: DEPENDING ON PLANTS SELECTED AND AESTHETIC REQUIREMENTS, OCCASIONAL PRUNING AND REMOVAL OF DEAD PLANT MATERIAL MAY BE NECESSARY. BE CAREFUL TO PRUNE TREES AND SHRUBS TO MAINTAIN LINES OF SIGHT IN PARKING LOTS AND ALONG ROADWAYS. NCDOT STATES: "SHRUBS MUST BE KEPT LOW, AND TREES AND LARGE SHRUBS UNDER —TRIMMED SUFFICIENTLY TO PERMIT CLEAR SIGHT IN THE AREA BETWEEN 2 FEET AND 6 FEET ABOVE ROADWAY ELEVATIONS. REPLACE ALL DEAD PLANTS. HOWEVER, IF SPECIFIC PLANTS CONSISTENTLY HAVE A HIGH MORTALITY RATE, ASSESS THE CAUSE AND REPLACE WITH APPROPRIATE SPECIES. PERIODIC WEEDING IS NECESSARY UNTIL GROUNDCOVER PLANTS ARE ESTABLISHED. WEEDING SHOULD BECOME LESS FREQUENT IF AN APPROPRIATE PLANT DENSITY HAS BEEN ESTABLISHED. • NUTRIENTS AND PESTICIDES: THE SOIL MEDIA AND PLANT MATERIAL SHOULD HAVE BEEN SELECTED FOR OPTIMUM FERTILITY, PLANT ESTABLISHMENT, AND GROWTH WITHIN THE PARTICULAR CONDITIONS OF EACH BIORETENTION FACILITY. NUTRIENT AND PESTICIDE INPUTS SHOULD NOT BE REQUIRED AND WILL DEGRADE THE POLLUTANT PROCESSING CAPABILITY OF THE BIORETENTION FACILITY, AS WELL AS CONTRIBUTE TO ADDITIONAL POLLUTANT LOADING TO RECEIVING WATERS. BY DESIGN, BIORETENTION FACILITIES ARE TYPICALLY SPECIFIED IN WATERSHEDS WHERE PHOSPHOROUS AND NITROGEN LEVELS ARE OFTEN ELEVATED. THEREFORE, THESE SHOULD NOT BE LIMITING NUTRIENTS WITH REGARD TO PLANT HEALTH. IF IN QUESTION, HAVE THE SOIL ANALYZED FOR FERTILITY. ADDITION OF COMMERCIAL FERTILIZER OR COMPOST TO BIORETENTION WILL LIKELY RESULT IN NUTRIENT EXPORT FROM THE BED. • MULCH: REPLACE MULCH ANNUALLY IN BIORETENTION FACILITIES WHERE HEAVY METAL DEPOSITION IS LIKELY (E.G., DRAINAGE AREAS THAT INCLUDE COMMERCIAL/INDUSTRIAL USES, PARKING LOTS, OR ROADS). METAL 'HOT SPOTS' OCCUR WHERE WATER ENTERS THE BED. IN RESIDENTIAL OR OTHER SETTINGS WHERE METAL DEPOSITION IS NOT A CONCERN, REPLACE OR ADD MULCH AS NEEDED TO MAINTAIN A 2 TO 4—INCH DEPTH. • FILTERING CAPACITY: WHEN THE FILTERING CAPACITY DIMINISHES SUBSTANTIALLY (E.G., WHEN WATER PONDS ON THE SURFACE FOR MORE THAN 12 HOURS), REMEDIAL ACTIONS MUST BE TAKEN. IF THE WATER STILL PONDS FOR MORE THAN 12 HOURS, THE TOP FEW INCHES OF MATERIAL SHOULD BE REMOVED AND REPLACED WITH FRESH MATERIAL. THE REMOVED SEDIMENTS SHOULD BE DISPOSED OF IN AN ACCEPTABLE MANNER (E.G., LANDFILL) OR LAND APPLICATION. IF THAT DOES NOT SOLVE THE PROBLEM, MORE EXTENSIVE REBUILDING IS REQUIRED. IF THE BED HAS FILTER FABRIC INSTALLED UNDER THE MEDIA AND ABOVE THE WASHED ROCK, THE FILTER FABRIC MAY BE CLOGGED WITH SEDIMENT. IF CLOGGED FILTER FABRIC IS PRESENT, THE BED WILL NEED TO BE REBUILT. BIORETENTION SOIL/PLANTING REQUIREMENTS: MINIMUM MEDIA DEPTH THE MINIMUM DEPTH OF THE MEDIA DEPENDS ON THE DESIGN OF THE CELL AS FOLLOWS: (A) ALL CELLS WITH TREES AND SHRUBS: 36 INCHES; (B) CELLS WITHOUT TREES AND SHRUBS: (II) WITH INTERNAL WATER STORAGE: 30 INCHES. MEDIA MIX THE MEDIA SHALL BE HOMOGENOUS SOIL MIX ENGINEERED MEDIA BLEND WITH APPROXIMATE VOLUMES OF: (A) 75 TO 85 PERCENT MEDIUM TO COARSE WASHED SAND (ASTM C33, AASHTO M 6/M 80, ASTM C330, AASHTO M 195, OR THE EQUIVALENT); (B) 8 TO 15 PERCENT FINES (SILT AND CLAY); AND (C) 5 TO 10 PERCENT ORGANIC MATTER (SUCH AS PINE BARK FINES) MEDIA P-INDEX 1. THE PHOSPHORUS INDEX (P—INDEX) FOR THE MEDIA SHALL NOT EXCEED 30 IN NSW WATERS AS DEFINED IN 15A NCAC 02B .0202 AND SHALL NOT EXCEED 50 ELSEWHERE. OTHER MEDIA NOTES 1. THE MEDIA SHALL NOT BE MECHANICALLY COMPACTED. IT IS RECOMMENDED TO EITHER WATER IT OR WALK ON IT AS IT IS PLACED. 2. THE BIORETENTION CELL SHALL BE MAINTAINED IN A MANNER THAT RESULTS IN A DRAWDOWN OF AT LEAST ONE INCH PER HOUR AT THE PLANTING SURFACE. PLANTING PLAN 1. FOR BIORETENTION CELLS WITH VEGETATION OTHER THAN SOD, THE PLANTING PLAN SHALL BE DESIGNED TO ACHIEVE A MINIMUM OF 75 PERCENT PLANT COVERAGE AT FIVE YEARS AFTER PLANTING. THE MAXIMUM COVERAGE WITH TREE OR SHRUB CANOPY SHALL BE 50 PERCENT AT FIVE YEARS AFTER PLANTING. IF SOD IS USED, THEN IT SHALL BE A NON —CLUMPING, DEEP—ROOTED SPECIES. 2. FOR BIORETENTION CELLS WITH VEGETATION OTHER THAN SOD, TRIPLE SHREDDED HARDWOOD MULCH SHALL BE USED FOR THE PORTION OF THE CELL THAT WILL BE INUNDATED. MULCH SHALL BE UNIFORMLY PLACED TWO TO FOUR INCHES DEEP. (A) MULCH TO BE PERIODICALLY RENEWED TO MAINTAIN A TWO TO FOUR INCH DEPTH. THE IDEAL TIME TO REAPPLY MULCH IS IN THE LATE SPRING AFTER THE SOIL HAS WARMED. EVERY FEW YEARS, MULCH SHOULD BE REMOVED AND REPLACED. ■ s evi e REGIONAL AIRPORT ri AVC1`40N AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.avconinc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION CARO SEAL _ 040195 - DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA ,.........,..,. 0 KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA STORMWATER DETAILS NO. 1 ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: N.T.S. AS NOTED REVISIONS: NO. DATE BY DESCRIPTION 1 06/01/22 NCDELM COMMENTS DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 PROJECT NO. 2021.0076.01 SW-02 CLEAN -OUT PIPE. PVC PIPES WITH GLUED CLEAN -OUT FITTINGS WITH SCREW TYPE CAPS THAT EXTEND AT LEAST 2FT ABOVE THE SURFACE OF THE BED SEE SOIL/PLANTING -- REQUIREMENTS FOR FILTER Z�� 1 MEDIA ON SHEET SW-02 N\ PRE-TREATMENT FOREBAY BOTTOM ELEV. 2165.0 TOP ELEV. 2168.0 RIPRAP SPILLWAY FROM FOREBAY, 40FT WIDE, ELEV. 2167.5 15" RCP 0 Q U Lu 0 z 0 Q i CD C7 z ry Lu Lu z z LU Y _U J Q Y _U J D Q U SOD BIORETENTION BOTTOM AND SIDE SLOPES BIORETENTION PLAN VIEW N.T.S. -4" PERFORATED UNDERDRAIN @0.5% A EMERGENCY SPILLWAY, ELEVATION 2167.5 OCS INVERT OUT 2162.0, RIM 2167.25. SEE DETAIL SW-04 u s ELECTRICAL PFnFRTAL 45 LF @ 10.0% ELECTRICAL PEDESTAL s R( s El s\ F( TIE INTO EXISTING ss _ STRUCTURE, p v v ° p INVERT IN: 2157.5 s V ° � S �7 / cc;" 0 \ _ Ssi Ste' 0' 15' 30' 60' 90' 1 " = 30' >too. sheville REGIONAL AIRPORT ri AVC40N AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.avconinc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION �< . SEAL 040195 - DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA 0 KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA STORMWATER DETAILS NO. 2 ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: 1" = 10' AS NOTED REVISIONS: DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 PROJECT NO. 2021.0076.01 SW-03 TRASH RACK REQUIRED ON TOP OF STRUCTURE. TRASH RACK SHALL BE APPROVED BY THE ENGINEER PRIOR TO CONSTRUCTION. SEE THIS SHEET FOR DETAILS. 8" 36„ 8" 8" 36„ 8" #4 @ 8" VERT. E.F. d e e d e d a 4 ee • a 2" CLR. .d (TYP.) •; ° .:. #4 @ 8" VERT. E.F. .d d MANHOLE STEPS @ 1'-2" CTS d • d . 4" UNDERDRAIN a e e ` CONNECTION WITH IWS, SEE DETAIL �a TYP. SW-02 °e ROUNDED ENTRANCE • FLOW STONE BEDDING r 12„ „ 12" J 6 TOP OF STRUCTURE HIGH DENSITY POLYETHYLENE STRUCTURAL P LASTI C mimisiolmimini Now ii 01 No A TOP VIEW TRASH RACK MANUFACTURED BY PLASTIC SOLUTIONS INC. 877-877-5727 OR APPROVED EQUAL. TRASH RACK SHALL HAVE A REMOVABLE ACCES HATCH AND SHALL BE BOLTED TO THE CONCRETE STRUCTURES PER MANUFACTURER'S INSTRUCTIONS. / CONCRETE RISER OUTLET PIPE ° 4 :e A. SECTION X-X N.T.S. TRASH RACK SPACING SET BY PLASTIC SOLUTIONS INC. /1 ELEV. A OUTLET PIPE #5 @ 8" E.W. TOP & BOTTOM TRASH RACK ASSEMBLY C mmmm mmmm TOP VIEW 5.25' 12" J 6„ STONE BEDDING SECTION Y-Y OUTLET CONTROL STRUCTURE N.T.S. Leaving Structure Q10 Q10 N.T.S. Leaving Structure Q25 Q25 DA 1 S-1 3.91 3.91 4.49 4.49 SYSTEM DA 2 S-2 1.21 5.11 1.38 5.87 DA 3 S-3 0.58 9.22 0.67 10.58 1 DA4 S-4 1.19 1.19 1 1.36 1.36 DA 5 S-5 2.34 3.52 r 2.68 4.04 PRE -CAST CONCRETE STRUCTURE OR AN APPROVED EQUAL IS ACCEPTABLE. ALL ORIFICE AND WEIR ELEVATIONS SHALL BE MAINTAINED. 2167.25 #4 @ 8" VERT. E.F. #4 @ 8" VERT. E.F. 4" UNDERDRAIN CONNECTION WITH IWS, SEE DETAIL SW-02 2162.0 N #5 @ 8" E.W. TOP & BOTTOM STRUCTUR E NUMBER STRUCTURE Gate Elevevation (Single) S-1 15" 1 nv Out S-2 Grate Elevation (Single) 15" Inv In 18" 1 nv Out S-3 Grate Elevation (Single) 18"1nvIn 18" 1 nv Out S-4 IGrate Elevation (Single) 15" 1 nv Out S-5 Grate Elevation (Single) 15" Inv In 15" 1 nv Out 69.4 65.99 68.98 65.53 65.43 68.10 65.20 65.10 7198 66.25 69.24 65.80 65.70 PIPE STRUCTURE NUMBER S-1 TO S-2 15" RCP Class V 93 LF n=0.013 4.49 Q25 0.50% Slope capacity_ 4.57 OK S-2 TO S-3 18" RCP Class V 45 LF n=0.013 5.87 Q25 0.50% Slope capacity_ 7.43 OK S-3 TO S-5 24" RCP Class V 19 LF n=0.013 10.58 Q25 0.50% Slope capacity: 15.99 OK S-4 TO S-5 15" RCP Class V 90 LF n=0.013 1.36 Q25 0.50% Slope capacity: 4.57 OK -5 TO -3 15" RCP Class V 100 LF n=0.013 4.04 025 0.50% Slope ca acl _ 4.57 OK ULTIMATE CONDITION - HYDRAULIC GRADE LINE COMPUTATIONS Proiect AVL -Contractor Staoino Area INLET STATION (1) UPSTREAM INLET Outlet Water Surface Elev. (2) Do in (3) Qo cfs (4) Lo ft (5) Sfo % (6) Hf It (7) JUNCTION LOSS Ht (16) 1.3 Ht (17) 0.5 Ht (18) FINAL H (1-9) Inlet Water Surface Elev. (20) RIM ELEV. (21) Vo (8) Ho (g) Qi (10) Vi (11) Qivi (12) 2 Vi 12g Hi (13) Angle (14) Hd (15) EX-01 Starting Elevation 2153.90 2163.62 EX-02 2153,90 18.00 25.53 37.24 5.88 2.19 3.04 0.04 0.21 0,43 0.68 0.88 0.44 2.63 2156,53 2165.76 EX-03 15.00 3.05 6.29 19.21 0.61 90.00 EX-03 2156.63 15.00 3.05 233.19 0.22 0.52 6.29 0.15 0.23 0.00 0.38 0.50 0.25 0.77 2157.30 2165.76 EX-04 15.00 2.84 6.49 18.44 0.65 0.00 EX-04 2157,90 15.00 2.84 176.87 0.19 0.34 6.49 0.16 0.08 0,01 0.25 0.33 0.16 0.50 2158,40 2165.81 EX-05 15.00 2.53 3.83 9.70 0.23 5.00 EX-05 2161.30 15.00 2.53 104.90 0.15 0.16 3.83 0.06 0.06 0.01 0.12 0.15 0.08 0.24 2161.54 2165.90 EX-06 15.00 1.30 3.21 4.18 0.16 5.00 EX-06 2161,90 15.00 1,30 47.67 0.04 0.02 3.21 0.04 0.00 0.00 0.04 0.05 0.03 1 0,05 2161,95 2165.97 0 1.30 0.00 a.00 0.00 0.00 >V001. _", sheville 00 REGIONAL AIRPORT AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.aveoninc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION ClA1RrO . Z. SEAL 040195 �!!!lIlI11l1i4Y1`�l` DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA 0 KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA STORMWATER DETAILS NO. 3 ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: N.T.S. AS NOTED REVISIONS: NO. DATE BY DESCRIPTION 1 06/01/22 WMM NCDELM COMMENTS DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 TRASH RACK DRAINAGE CALCULATIONS PROJECT NO. 2021.0076.01 N.T.S. SW-04 c c H C: w_ C ry a z L a c C: z a w w z L z w Y C: a Y C: J Q C: >too,. sheville REGIONAL AIRPORT AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.avconinc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION L ArR10��''i Sri - SEAL - - 040195 - A S DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA O 0 KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA SCM DRAINAGE AREA MAP ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: 1" = 30' AS NOTED REVISIONS: DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 PROJECT NO. 2021.0076.01 SW-05 0 0 U) U w ry IL z O Q o' 5t z ry w w z (D z w Y U_ J Y U_ J Raw v� D D ° b / v / PROJECT AREA: 1.85AC b / D D / / v / ° D 222' v D ° / D / / v 'D D 'v I 0 / D ° k D ' D ° Dv b D v RO o� D O ♦ PROPOSED ON -SITE PARKING: 59,548 SF NOTE 1: THIS PROJECT IS WITHI ASHEVILLE REGIONAL AIRPOR PROPERTY, WHICH HAS A PROPERT AREA OF 900AC. FOR THE PURPOSED C OUR CALCULATIONS, THE LIMITS C OUR CONSTRUCTION (1.85AC) WER USED WHEN DETERMINING BUILT UPO AREA VALUES. v ♦ `\ lw ♦ \ N� 288So \ 27. 9 sp,9 Z O 269' / IMPERVIOUS SURFACE AREA CALCULATIONS ON -SITE PARKING (SF): 59,548 EXISTING BUA (SF): 0 TOTAL IMPERVIOUS AREA (SF): 59,548 TOTAL IMPERVIOUS AREA (AC): 1.36 TOTAL PROJECT AREA (AC)- 1.85 (SEE NOTE 1) PROJECT PERCENT OF IMPERVIOUS AREA - (TOTAL IMPERVIOUS AREA / TOTAL PROJECT AREA) X 100 1.36 AC / 1.85 AC X 100 = 73.5% 9 12 o D I NO 0')r O D O N ° 46' 00 D I 12' 24' 312' i l � � 22' ------ J 28' S17° 6 20.86"E 1 — 28' � � � � � � 363.562 - ° v ° p '�7 Dv b v D ° D D D b 0 D ° D D D l7 D v p p ° v D ° D D D P b v D v D D D '�7 201 ----------- \°_- D \ b 0' 10' 20' 40' 60' 1"=20' t D \ vD ONE_----- OHE-- E \ oyF\ N D b b \ \ • d, ' D VV� D 51.079 \ N14° 51' 54.2 ---------------- `\ \, \ ♦� Nell ss 0. \ Q��` ss 118 ss\ ------------- -- —� j _______--- r� S15* 3 3' 57.55"E 101.6 �— ■ >too- s evi I I e REGIONAL AIRPORT Ile AVCON, INC. ENGINEERS & PLANNERS 10115 KINCEY AVENUE, SUITE 140 HUNTERSVILLE, NC 28078 OFFICE: (704) 954-9008 www.avconinc.com 100% SUBMITTAL NOT RELEASED FOR CONSTRUCTION L ArR1��''i Sri - SEAL - - 040195 - ` FNGIi.... � A.�,5��,,` DAVID A. SKURKY, P.E. NC SEAL #040195 ASHEVILLE REGIONAL AIRPORT FLETCHER NORTH CAROLINA Q \ KEY PLAN TERMINAL EXPANSION PROJECT CONTRACTOR STAGING AREA BUILT -UPON -AREA EXHIBIT ATTENTION: THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC., FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE. WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN WHOLE OR IN PART, IS STRICTLY PROHIBITED SCALE: AS NOTED REVISIONS: DESIGNED BY: W.M.M. DRAWN BY: W.M.M. CHECKED BY: D.A.S. APPROVED BY: D.A.S. DATE: MARCH 2O22 STATE LICENSE # N.C. C-2450 PROJECT NO. 2021.0076.01 g SS SW-06