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HomeMy WebLinkAboutDrainage Reports - 11/04/1994 (2)STEWART&AtSSOC ATES Consulting Engineers and Surveyors November 3, 1994 9nal � �P()� tr�� Mr. Glen Schlueter Storm Water Utility City of Fort Collins P.O. Box 580 Fort Collins, CO 80522 Dear Glen: Re: Addendum to July 28, 1994 drainage report for the Vanworks Minor Subdivision. I have calculated the detention volume necessary for the existing new building and the proposed building addition. From the July 28, 1994 report, the required volume for the new building was 3,792 cubic feet, and I have calculated that the additional runoff volume that will be generated by the proposed building addition is 1,123 cubic feet. This is a total volume of 4,915 cubic feet. The July 28, 1994 report determined the release rate to be 0.80 cfs, so I propose to use that same rate although we are adding additional area to the runoff basin and the rate could be slightly more. The volume of the proposed pond is 7,650 cubic feet, which is more than required, but a portion of the original building, which is considered to be historic flow, drains into the detention pond area. The larger pond volume will provide more freeboard, and therefore the pond will not overflow as often. A timber tie wall shall be installed all along the west and north sides of the fence line between Vanworks and the storage units located east of Vanworks. This wall will be constructed with a top elevation of 4943.0 or six inches above the ground at the fence line, whichever is higher. This wall shall be extended to the south to the north right—of—way of Lincoln Avenue. This wall will provide a 1 foot freeboard for the detention pond, and will insure that no runoff from the Vanworks site will encroach onto the storage site. An overflow swale over the headwell of the pond outlet will carry the overflow runoff to the existing drainage channel along the north side of East Lincoln Avenue. The detention pond outlet pipe is planned to be a 6 inch diameter PUC pipe. This outlet pipe also drains into the ditch along the north side of East Lincoln Avenue. James H. Stewart and Associates, Inc. 103 S. Meldrum Street P.O. Box 429 Ft. Collins, CO 80522 303/482-9331 Fax 303/482-9382 November 2, 1994 Page 2 I have attached a plan of the site showing existing conditions and elevations and also showing the proposed detention pond and outlet works. My calculation sheet is also attached. Sincerely, / , atJ4 w7v6-� Phillip I. Robinson, P.E. & L.S. Vice President rsc enclosures STEWART&ASSOCIATE$.103 PH. S. 9 DRUM,FAX FORT C8OLLINS, CO 80521 Consulting Engineers and Surveyors By: Date: Jr I q Client: Vanv.ror f Inc. Sheet No. of Project: IJa h \,,/ a rV S M) n or - Subject: -SJ'o r-wn w oL• e r- J C t e-, JI o h 1'P VIIr.Cl ale C I or' volvr�cl= 37YZ cv-Fr - -- I _i�7i77QITl�NAL I PF—TE1jIT10Nl IFEQUIR 9I FOR ! n(zGPGSEy !AD9IT1Q.M! --r_Ar ��_� ��GO0� SF-I+� l%. /USC� ��•- � � I 4! I� I I I I I i I � � � ! 1..-3 %,Ir I IOU y( S. -���� �)Cc�LJ>.G ,O.9i 'U•2 f (o•75;._-I - o�'.c 05)(61 ) ill I T_/�_l_� F_"fEN flonJ_-XE D =i 3,7y2 +1 11?-i : ---_t/COG V r. . 0I sED i 00 _ t cani'oyr �ccreG.! I I j �iollcli�� � I ! Ta-�aI'yol�%"i-< I i I I I I 12�}000) I ' ! I 7C ! cv. F ! I i 'tip i ElGt!Dj. Va�ur� �`t !S cc� F-7 Tr it Jul Z ��! I 1°19 re ark } _I .L V=i .10 I (! IG4.4-x! L:S �_-, 5• ; �s � I i ! ! � �_ .I j i I I i J_-I_ U: cY/i •ct =f i .�13s6j i� _ I`LS i�{,l/i,! I I , 1 ` _ 1 -f fV-s_E_ _ 4 �i _--�C._ ¢_�2 �_.) vpeh!InS STEWART&ASSOCIATES 103 AX S. MEL-9331 FDRUM, FO2-9RT COLLINS, CO 80521 PH. 48248382 Consulting Engineers and Surveyors By: pig — Date: Client: �la 0 r-ks, , Inc- Sheet No. z of Project: V0 n %'/0 r-,<s Minot- 's Vb Subject: S�-Or-� drai q i I a0 0 STEWART&ASSOCIATES PH. 482-93311RUMF FAX 482-9380LLINS, CO 80521 Consulting Engineers and Surveyors / By: / �/ Date:: Client: V a � w o / kI % n C Sheet No. 3 of Project: VGi '/0(�1 /v il-16r 5VId Subject: S i o r%+1 w Le, r, a ve r <Fr-r1/nA/ -r14V1U /71)T1FT FTT-� - F- T'- TOP 4-3.0 14 H!ulr I a r..J-i c^ r /. c_I so w� f� I .°, dePf� 0.2 117.3 j,`s 9rc�%c de �� —' 1 I iS b y ;lest i J o h i / i ,Ijf! .�; III ; i I , I , FINAL STORM DRAINAGE REPORT FOR VANWORKS MINOR SUBDIVISION 900 EAST LINCOLN AVENUE JULY 28, 1994 STEWART & ASSOCIATES, INC. 103 SOUTH MELDRUM STREET FORT COLLINS, COLORADO 80521 303/482-9331 STEWART&ASSOCIATES Consulting Engineers and Surveyors July 28, 1994 Mr. Glen Schlueter Storm Water Utility City of Fort Collins P.O. Box 580 Fort Collins, Colorado 80522 Dear Glen: This is the revised drainage report for the Vanworks Minor Subdivision at 900 East Lincoln Avenue, Fort Collins, Colorado. The building has been built, and this report also reflects what has taken place since the report was revised June 17, 1993. The site is described as a part of the Northeast '—, of Section 12, Township 7 North, Range 69 West of the 6th P.M. It is located in the Cache la Poudre River Drainage Basin. It is bounded on the south by Lincoln Avenue, on the west by industrial uses in the Patrick Subdivision, on the north by the undeveloped North Lemay Subdivision and on the east by existing self —storage units. The site slopes from north to south at approximately 0.3% grade. There is an existing large drainage swale on the north side of Lincoln Avenue in the public right—of—way. It drains easterly at a very flat slope. At this time, there are no plans to widen the Lincoln Avenue pavement so there will be no expected decrease in the swale capacity. Vanworks has their conversion manufacturing business at this site in an existing building. They have constructed a new warehouse/office building detached from the existing building. In order to construct the new building, a Minor Subdivision Plat was prepared that adds a part of Lot 9, North Lemay Subdivision, to the existing site and also creates a modified Lot 10, North Lemay Subdivision, which becomes Lot 10—A, Vanworks Minor Subdivision. Lot 10—A is not being developed at this time and is not included in this report. All of their site, except for their building, was gravel surfaced parking for employees, driveways and outdoor storage of vehicles waiting to be converted. The site is in the 100—year flood plain of the Cache la Poudre River. It is in Zone A-4 and shown on FIRM Map 080102 0002 B. Because of the low percentage of slope south to the Lincoln Avenue Drainage Swale, the velocity of the runoff is low. The increase in impervious surface was created by the 7200 square foot new building and 6600 square feet of concrete on the north and south sides of the new building which was in place of the 1200 square foot asphalt driveway that was originally required by the planning department. James H. Stewart and Associates, Inc. 103 S. Meldrum Street P.O. Box 429 Ft. Collins. CO 80522 303/482-9331 Fax 303/482-9382 Vanworks Minor Subdivision Page 2 Then the owner constructed 12,640 square feet of concrete driveway and display area onsite and 4200 square feet of concrete driveway in the Lincoln Avenue right—of—way. A 4,995 cubic foot detention pond was provided in the gravel area on the east side of the new building. This pond was sized for the originally planned 8400 square feet increased impervious surface. A 3—inch diameter discharge pipe was placed through the berm rather than the 6—inch pipe with a restriction plate on a headwall. This change was made due to the necessity to park vehicles in that area. There is an existing drainage swale with a gravel surface at approximately 0.3% grade between the pond and the Lincoln Avenue Drainage Swale. A berm was placed along the east property line at the south end of the swale to insure that no runoff will spill over into the self —storage property, and a 3—inch diameter P.V.C. pipe was laid through a small berm to discharge into the Lincoln Avenue Swale. This will offer a small amount of detention in the southeast corner of the Vanworks property. The finished floor elevation of the new building was to be at elevation 4946.0 which would provide 1.5 feet of freeboard. Due to miscommunication, the finish floor was constructed at 4945.4 which provides 0.9 feet of freeboard. Mr. Hess was cited by the City of Fort Collins and paid a fine for not having the required freeboard. An elevation certificate is enclosed as a part of this report. The floor elevation meets the FEEMA criteria but does not meet the City of Fort Collins criteria. Erosion Control: The site is in a High Rainfall Erodibility Zone and in a Moderate Wind Erodibility Zone. The present ground cover is gravel with some native grass/weed ground cover around the edges. The construction of the new building pad, which is approximately two (2) feet higher than the existing ground, was on pit run. This was the only disturbance of the existing gravel and/or grass/weed ground cover. The site drains southerly across the existing gravel parking lot at a very low velocity so there will not be erosion from the storm water discharge. The required rainfall performance standard is 72.8%, and the existing site provides a performance standard of 92.8%. The gravel swale has acted as a gravel filter, and there is no visible evidence of erosion. The low velocity not only improves the quality of the runoff but allows for more infiltration of the runoff. Vanworks will be responsible for the maintenance of the pond and the onsite drainage swale. The drainage easement encompassing the detention pond is enclosed for your review. The grading plan, runoff calculations, mass diagram and erosion control calculations are included as a part of this report. If you have any questions concerning this project, please call. Sincerely, Qj.'�'G Gf Richard A. Rutherford, P.E. & L.S. President jrr enclosures STEWART&ASSOCIATES 103 S. MELDRUM, FORT COLLINS, CO 80.521 PH. 482-9331 FAX 482-9382 Consulting Engineers and Surveyors By: (2 — Date: Client: A A-) w e)s I T— Al r- Sheet No. 3 of Project: Ar k) w o p— Ic- /A.) 6 *-- fu -R In / L.) / -/ in u — Ln -r 2 - 14 Subject: S T o P-- AA W A T e,7:, r-, R. (i y i) /::� r— C A t- cu L-,q T/e) Ai -� E17 --E:.M,p V. 6 Ui I Ap- E"q 0. A c- I/ F— f 5 A -7 5, C! -S 0 X :0 C) ,:-7-3 00 x C). ?�4- C//Z 130 r-7 C 7 '500 + I1D V. I QiY!e1 0. 6ZI x AS- X 2,8 6 7 � V R 10 6 Z! X' ' I ( I iI � i �� I I! �! /00 67 -01 X 6' & 06 --3 0 o ki 11o, "0., 4- 0-71 C Y I /IZSx 6 Z" 09; S C STEWART& SSOCIATES 103 S. MEL9 3DiRUM,FAX FORT gOLLINS, CO 80521 Consulting Engineers and Surveyors By: 11C A Date: s Client: V A v wo,e•.es , ,L' ti Sheet No. 4- of Project: VAzn,wop-kI AA usr-)ivirio o - Lo, 9-A Subject: f 'T O E Al 21,1 A)' OFF �,A. L c UZ- 4Tl n U J I I I I _I I{! I I I I! I• i l l l l , I i I I ile;�'A1=1 iZi E39iZ!3! (AC_I zD tl/t/� — Ir Ll!oVJ C/0S! ll7SMPE� QAcz ° I I I J fOIRFACc - Z,3S Ac' j Ql•'3 f I ; i ri'rTi C - C/• oo x o. i87) + (O sox o, g /3) ' _ o.S9 i IH�IdT. TG = l' 87 l / -o•,. s 9) Soo�i 1/3of-T. _ 7 F o, �/r d, 4� 3 I I j HIS, i C'>2 Zyrz. = ; o "x 1, 9�7 x z� Z SO! c F', S I y.tJIT Q.r°ye ! G S9 �x Z•!o X Z• 89 = 4'43 c.F. f• II I ' / 130 F 7 i .rFrrT.! iooy4TG, /o•'Y Soi- ¢ I}-►!'S 1�oo�e Q - 1 zsx; os9 xj 4 9rlx Z•89 = io. ss G. J. `I I! I I a STEWART&ASSOCIATES Consulting Engineers and Surveyors 103 S. MELDRUM, FORT COLLINS, CO 80521 PH. 482-9331 FAX 482-9382 By: fiz A p- Date: ? 3 Client: VA V WOe-,e-f- Sheet No. -S- of Project: V A k) u, o ie /c f A) o ?- Jt,; 13 b / 'J f, 1 16 Al p- A! V e- CI Oh C- !;H 7 Z60 m ZK ;0,! 6,51 8 0 'y LLO V-) a L C- Ov -r L E 7 A, P—C-, A 0 8.1 Ac- 1-7, A z 3 04 M i>� <-Z; P- V J P- E A O. v e L-I A P-' Gq 70 Ac-� L3 7 010 + A 60 0-787 X !OS-0 0.61 111. 1 61 z F, D r= V 8 1 7 (J 1 1 A, 0 ;-7 /'13 0: Y 0 89 1 A 0 'T Ir E� V., 0-:& 1 A J i I I '; I' i j I; I! i! i j! j j!; j! ; 0,1(0,/ X 10 C!r-J. .D e v'. t!�16 y 3; S- /187 6, &D !z 60 12 M 1A)'! 2 S'K 6� (0, x D. C. F'J'- \J. 103 S. , FORT STEWART&kSSOCIATES PH. 482-9331MELDRUMFAX 482-938C0LLINS, CO 805212 Consulting Engineers and Surveyors By: R 4P� Date: (-/!Zl 93 Client: VAA.,tA)r)ricT, Sheet No. Project: VAAJ W a p ,mac JU ti, o r R r> I L/ (,-f e) A (.- of Subject: M A c,r -D /A r� f-- A A4 l V4 mi cv GA C. r-1 T Fr Ole -1,f, ZSy L) 61, x —t6 7. 2 4 -,'O, ' . i I z94D 1 7-4,60 ?-0 3. �5 fl- 3513! 1 f8 i 3768 {--j 13' 2 ;36 -7 /Z 371?- ISOj I ! I? qo I i I 1 1 ?- -04 I io 37F0 _ !Z&O j -A 6 3 7 � 701 2.30 3 9?- f & f3 3z- j__!90. I ! l•8(0 I I �/, 2(o GZ 0q- 13r< 0 8 /-o- 0.,7 1 1 G65 t i I _f- ?,Dog I -- -- Y- 6 to zo 3O rio so &0 -70 so STEWART&ALSSOCIATES 103 S. PH. M 3 DRFM, FORT AX COLLINS, CO 80521 82 Consulting Engineers and Surveyors By: ff Date: /-7 Client: Va A)tooe.r,y , L' Al c.. Sheet No. -7of Project: UA, 0 U) o P. k-.r M: u n P ru R Subject: Ou T /" r T Pl n� P�c�owAB�E D�JCHAh'.�E• %� \� 0.80 G,f.5. Ii 1 i G 9,:9 r 110-7 Y C- 60 i I 6, c,< r -' U• /4G. .F7'' ' = 23•'75 F-7/Jc� I ! { i , ! I - 1j ! USE O P E? �✓ l /J e, 4- 78 Y v, c. c= I ��l I ! iIII�Ililli t � � ;i liii, _ I , --------- RAINFALL PERFORMANCE STANDARD EVALUATION PROJECT: ------------------------------------------=-------------- l/ANwo per AAi vvz- So13 D.o400 STANDARD FORM A Coy 9-A COMPLETED krj -BY-------------------------------------DATE_ S1 a i DEVELOPED ERODIBILITY ` Asb Lsb Ssb Lb - Sb - PS SUBBASIN• ZONE (ac)-(ft) (feet) () --------- rorw�fr�� ----------- y�aH ------- Z.85A�.� ------ G30�, ------- O.47% ------ .630 --(�) -- I------- 0.47%j DI/SF-A:1939 i 8 EFFECTIVENESS CALCULATIONS ---------------------------------------------------- ------------------ PROJECT: VA vWD/tl M A.)O,, J ug'pivirio.u, tar 9-A STANUMU FORM B COMPLETED BY: P 4 UAI*E: 5-z Erosion Control C-Factor P-Factor Method Value Value Comment --- ----------.-- BR --- ---------- ---------- /o p — O.Z(. A $ utvDi uaS FCONL.. 0.01 /-oo O•S4- Ac- EXIJT. GaAueL-p4Rk/.v& D./0 /•0D Z. 6T MAJOR BASIN TesAp SiT& PS. 7Z. 8 % SUB BASIN AREA (Ac) CALCULATIONS ------ ------ ------------------------ -------------- 2.8lA. wT.D C = (0. 1.o0)+ (0.S4X0.0) 4(Z•o9x0,/0) p = Aoa FF=�I-Co.164-x/-o0)]x/00 - 83•�� 0 oh --------------------------------------- --------------------------------� HOI/SF-B:1989 c/ CONSTRUCTION SEQUENCE PROJECT:_ Vsivwyx¢ j Miuop� SuB �1,o7 9-A STANDARD FORM C SEQUENCE. FOR 19 93 ONLY COMPLETED BY: ' leAe DATE: As/95 ,ildicate by use of a bar line or symbols when erosion control measures will be installed. Major modifications to an approved schedule may require submitting a new schedule for approval by.the City Engineer. YEAR MONTH --------------------- OVERLOT GRADING WIND EROSION CONTROL Soil Roughing Perimeter Barrier Additional Barriers Vegetative Methods Soil Sealant Other RAINFALL EROSION CONTROL STRUCTURAL: Sediment Trap/Basin Inlet Filters Straw Barriers Silt Fence Barriers Sand Bags Bare Soil Preparation Contour Furrows Terracing Asphalt/Concrete Paving Other - 901L.0/ac Fc✓uc•4r., � SLAB. G2A%f6v VEGETATIVE: Permanent Seed Planting Mulching/Sealant Temporary Seed Planting Sod Installation Nettings/Mats/Blankets I Other i JI r-I/AI AIM i----------------------- STRUCTURES: INSTALLED BY MAINTAINED BY VEGETATION/MULCHING CONTRACTOR DATE SUBMITTED APPROVED BY CITY OF FORT COLLINS ON H' SF-C:1989 /,D STEWART&&SSOCIATES Consulting Engineers and Surveyors June 1, 1993 Mr. Glen Schlueter Storm Water Utility City of Fort Collins P.O. Box 580 Fort Collins, Colorado 80522 Dear Glen: This is the cost estimate for erosion control for Vanworks Minor Subdivision: There are no erosion control methods required. Reseeding for 11,200 S.F. @ $0.0298/S.F.=..$334 The City of Fort Collins requirement of 150% of cost would make the total collateral $501.00. If the minimum is $1000.00 for this project, the minimum will govern. If you have any questions regarding the estimated costs, please call. Sincerely, ,µ,vnn7!a Richard A. Rutherford, P. & L.S. ��:•`� E�•,;>__,= President •Ur * 5028 ?_ jrr • A '• C OF 0F.�` C0' James H. Stewart and Associates, Inc. 103 S. Meldrum Street P.O. Box 429 Ft. Collins, CO 80522 303/482-9331 Fax 303/482-9382 ELEVATION CERTIFICATE O.Me Miy3l. 1`991 . E■pueSMayJI, 199) FEDERAL EMERGENCY MANAGEMENT AGENCY NATIONAL FLOOD INSURANCE PROGRAM ^ TENTION: Use of this certificate does not provide a waiver of the flood insurance purchase requirement. This lorm is used only to provide elevation information necessary to ensure compliance with applicable community floodplain management ordinances, to determine the proper insurance premium rate, and/or to support a request for a Letter of Map Amendment or Revision (LOMA or LOMR). Instructions for completing this form can be found on the following pages. SECTION A PROPERTY INFORMATION I FOR INSURANCE COMPANY USE BUILDING OWNERS NAME POLICY NUMBER STREET ADDRESS (Including Apt.. Unit. Suite and/or Bldg. Number) OR P.O. ROUTE AND BOX NUMBER 1 COMPANY NAIC NUMBER OTHER DESCRIPTION (Lot and Block Numbers. etc.) .. -Lor R-d VAMWele.,es Miuop_ Jue5btu1r� •J CITY . . .- STATE ZIP CODE FeAzz GO[-r-rM'r CD 90SZ¢ SECTION 8 FLOOD INSURANCE RATE MAP (FIRM) INFORMATION Provide the following from the proper FIRM (See Instructions): 1. COMMUNITY NUMBER 2. PANEL NUMBER SUFFIX 4. DATE CF FIRM INDEX S. FIRM ZONE 6. BASE FLOOD ELEVATION 080/0Z OOOZ P13 Fee. is, 116 ¢ A 4- AD (in 5.use depth) 414444-5 7. Indicate the elevation datum system used on the FIRM for Base Flood Elevations (BFE): © NGVD '29 ❑ Other (describe on back) 8. For Zones A or V, where no BFE is provided on the FIRM, and the community has established a BFE for this building site, indicate the community's BFE: I 1 1 1 .;' feet NGVD (or other FIRM datum -see Section B, Item 7). SECTION C BUILDING ELEVATION INFORMATION 1. Using the Elevation Certificate Instructions; indicate the diagram number from the diagrams found on Pages 5 and 6 that best describes the subject building's reference level 1 . 2(a). FIRM Zones Al-A30, AE, AH, and A (with BFE). The top of the reference level floor from the selected diagram is at an elevation . of 1 141714•I5I,(4{ feet NGVD (Or other FIRM datum -see Section B. Item 7). (b). FIRM Zones V1-V30, VE, and V (with BFE). The bottom of the lowest horizontal structural member of the reference level from the selected diagram, is at an elevation of' I I I I !,IJ feet NGVD (or other FIRM datum -see Section B, Item 7). (c). FIRM Zone A (without BFE). The floor used as the reference level from the selected diagram is w.LJ feet above ❑ or below ❑ (check one) the highest grade adjacent to the building. (d). FIRM Zone AO. The floor used as the reference level from the selected diagram is feet above ❑ or below ❑ (check one) the highest grade adjacent to the building. If no flood depth number is available, is the building's lowest floor (reference level) elevated in accordance with the community's floodplain management ordinance? ❑ Yes ❑ No ❑ Unknown 3. Indicate the elevation datum system used in determining the above reference level elevations: ® NGVD'29 ❑ Other (describe under Comments on Page 2). (NOTE: If the elevation datum used in measuring the elevations is different than that used on the FIRM (see Section B, Item 77, then convert the elevations to the datum system used on the FIRM and show the conversion equation under Comments on Page 2.) 4. Elevation reference mark used appears on FIRM: 91 Yes El No (See Instructions on Page 4) 5. The reference level elevation is based on: ❑K actual construction ❑ construction drawings (NOTE: Use of construction drawings is only valid it the building does not yet have the reference level floor in place, in which case this certificate will only be valid for the building during the course of construction. A post -construction Elevation Certificate will be required once construction is complete.) 6. The elevation of the lowest grade immediately adjacent to the building is: 1 14414IS' U feet NGVD (or other FIRM datum -see ,ection B, Item 7). SECTION D COMMUNITY INFORMATION 1. If the community official responsible for verifying building elevations specifies that the reference level indicated in Section C. Item 1 is not the "lowest floor" as defined in the community's floodplain management ordinance, the elevation of the building's "lowest floor" as defined by the ordinance is: I t ' I I I.! f feet NGVD (or other FIRM datum —see Section B, Item 7). 2. Date of the start of construction cr substantial improvement Oc,+. Lim /443 SECTION E CERTIFICATION 's certification is to be signed by a land surveyor, engineer, or architect who is authorized by state or local law to certify elevation ,ormation when the elevation inlormation for Zones At-A30, AE, AH, A (with BFE),V1-V30,VE, and V (with BFE) is required. Community officials who are authorized by local law or ordinance to provide floodplain management information, may also sign the certification. In the case of Zones AO and A (without a FEMA or community issued BFE), a building official, a property owner, or an owner's representative may also sign the certification. Reference level diagrams 6, 7 and 8 - Distinguishing Features -II the certifier is unable to certify to breakaway/non-breakaway wall, enclosure size, location of servicing equipment, area use, wall openings, or unfinished area Feature(s), then list the Feature(s) not included in the certification under Comments below. The diagram number, Section C, Item 1, must still be entered. I certify that the information in Sections 8 and C on this certificate represents my best efforts to interpret the data available. I understand that any false statement may be punishable by fine or imprisonment under 18 U.S. Code, Section 1001. CERTIFIERS NAME LICENSE NUMBER (or Affix Seal) Ric.HArb A• urH Fo,ep COL.O SOLE TITLE COMPANY NAME G S. SrP—WA Qr � A rroc X Ale _ ADDRESS CITY STATE ZIP P•0, Box 4z9 Pr oct,r rr GO (905 SIG ATU E DATE PHONE Q" L""" "' - Uev /2-/s91 30-7-4B -9 331 Copies should be made of this Certificate for: 1) community official, 2) Insurance agent/company, and 3) building owner. COMMENTS: *: 5023 44 ON WITH ON PILES. SLAB BASEMENT PIERS. OR COLUMNS A v A A v ZONES ZONES ZONES ZONES ZONES REFERENCE LEVEL REFERENCE BASE LEVEL FLOOD REFERENCE LEVEL ELEVATION If i I_. BASE REFERENCE FLOCO ADJACENT T '•• LEVEL ELEVATION REFERENCE AO.PCENF ry GRADE BASE FLOOD ELEVATION LEVEL. .. - Ke..;ii'.:5: GRADE The diagrams above illustrate the points at which the Elevations should be measured in A Zones and V Zones. Elevations for all A Zones should be measured at the top of the reference level floor. 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