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HomeMy WebLinkAboutVANWORKS EXPANSION IL SITE PLAN REVIEW - 28 93A - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORTEASEMENT DEDICATION KNOW ALL MEN BY THESE PRESENTS: That the undersigned being the owners of Lot 9-A, VANWORKS MINOR SUBDIVISION, City of Fort Collins, County of Larimer, State of Colorado do hereby dedicate and convey to and for public use forever hereafter a stormwater detention easement described as follows. A stormwater detention easement in Lot 9-A, Vanworks Minor Subdivision which begins at a point on the East line of said Lot 9-A which bears S 02°53'07" E 28.04 feet from the Northeast corner of said Lot 9-A and run thence West 84.00 feet; thence South 55.00 feet; thence East 36.00 feet; thence South 102.00 feet; thence West 134.00 feet; thence South 30.00 feet; thence East 186.42 feet to a point on the East line of said Lot 9-A; thence along the said East line, N 00°46' W 78.48 feet and again N 02°53'07" W 108.67 feet to the point of beginning. Witness our hands and seals this —� q day of M %� I� A.D. 1994 Owner: VANWORKS, INC. By: / , .>' .i Keith E. Hess, President State of Colorado) ss County of Larimer) foregoing instrument was acknowledwd before me this A''I day of A. D. 19 by i otary Public My notarial commission expires: ATTORNEY'S CERTIFICATE This is to certify that on thecX day of A.D. 19F I examined the title to the property hereon described and established that the owners and proprietors of record of said property as construed in C.R.S. 1973, 31-23-111,.are as shown hereon as of said date. Si ture: Address: J/ 375 f• 4-Kre-,40f Ir".3-449 Regis ' ation No. ��S?7 / � �4�IX5 49OQO ZS SECTION E CERTIFICATION This certification is to be signed by a land surveyor, engineer, or architect who is authorized by stale or local law to certify elevation information when the elevation information for Zones Al-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 -If 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 Fealure(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 B 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. CERTIFIER'S NAME LICENSE NUMBER (or Affix Seal) RICHAeb A•JQuTH eE a rogx> COLA 0LS TITLE COMPAWNAME TPA. L•S. Srewg r Arroc Suc _ ADDRESS CITY STATE ZIP P.O. Box 4-7-9 FT DOLL IAZS Go . 905 SIG ATU E DATE PHONE A - Uey/Z /!9 t 303-48 -9�3/ Copies should be made of this Certificate for: 1) community official, 2) Insurance agent/company, and 3) building owner. COMMENTS: 5023 '. A /. �. C,. i ON WITH ON PILES, SLAB BASEMENT PIERS, OR COLUMNS A v A A V ZONES ZONES ZONES ZONES ZONES _— REFERENCE REFERENCE F E LEVEL LEVEL FLOOD REFERENCE LEVEL ELEVAnON 5 4; e ASE •AOJACENr:• REF EAENCE �.., ROCI GFuOE • LEVEL ELEVATION REFERENCE ADJACENt WE FL000 ELEVAnON LEVEL GRADE a: L'i:. .4 •' A t %. 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. Elevations for all V Zones should be measured at the bottom of the lowest horizontal structural member. ELEVATION CERTIFICATE O.Me.No30ri'19- Eapuet May J I, 1993 FEDERAL EMERGENCY MANAGEMENT AGENCY NATIONAL FLOOD INSURANCE PROGRAM ATTENTION: Use of this certificate does not provide a waiver of the flood insurance purchase requirement. This form is used only to provide elevation information necessary to ensure compliance with applicable community Iloodplain 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 COMPANv usE BUILDING OWNER'S NAME IPOLICY NUMBER STREET ADDRESS (Including Apt., Unit, Suite and/or Bldg. Number) OR P.O. ROUTE AND BOX NUMBER COMPANY NAIC NUMBER OTHER DESCRIPTION (Lot and Block Numbers. etc.) _Lor 4-A VAVWer-94 Mi41om- L%115r7IVrr/,0Ai CITY STATE ZIP CODE _For--r Gec�i�vs CD Bost¢ SECTION B FLOOD INSURANCE RATE MAP (FIRM) INFORMATION Provide the following from the proper FIRM (See Instructions): 1. COMMUNITY NUMBER 2. PANEL NUMBER 3. SUFFIX 4. DATE OF FIRM INDEX 5. FIRM ZONE 6: BASE FLOOD ELEVATION 080/OL 000Z B FFe. ts, /164- A ¢ (in AO Zones, S, depthl I 4944•S 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 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 I . 2(a). FIRM Zones At-A30, AE, AH, and A (with BFE). The top of the reference level floor from the selected diagram is at an elevation of ( 141914151,E 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 1 1 j 1 1 !,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.J 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 w.❑ 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: 0 Yes ❑ No. (See Instructions on Page 4) 5. The reference level elevation is based on: ❑X 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 Section B, Item 7). SECTION D COMMUNITY INFORMATION 1, It 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 Iloodplain management ordinance, the elevation of the building's "lowest floor" as defined by the ordinance is: I I ' I I !,I J feet NGVD (or other FIRM datum -see Section B, Item 7). 2. Date of the start of construction cr substantial imnrovement Or-1. •bZ. /"3 STEWART&O 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, Richard A. Rutherford, P. & L.S. ``Q��;: ��`GtyrE�Ev';J President 'ter 5028 jrr `°�F OF, � � J "% 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 ..ONSTRUCTION SEQUENCE PROJECT:. VAywor,ks Miuo,, SU LoT 9-A SEQUENCE. FOR 19 93 ONLY COMPLETED BY:- R-A,°t_ STANDARD FORM C DATE: slzeln Indicate 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 I J I F I M A I M ,----------------------------I------------------------ OVERLOT GRADING WIND EROSION CONTROL Soil Roughing I 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 - FRou oi,uc Fw-VP4 t 4 SLAG. GiZA•/6L- VEGETATIVE: Permanent Seed Planting Mulching/Sealant Temporary Seed Planting Sod Installation Nettings/Mats/Blankets Other I , I - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- -- - - -- -- - -- - -- - - ISTRUCTURES: INSTALLED BY (VEGETATION/MULCHING CONTRACTOR (DATE SUBMITTED IHOI/SF-C:1989 MAINTAINED BY APPROVED BY CITY OF FORT COLLINS ON EFFECTIVENESS CALCULATIONS ---------------------------------------------------------------------- PROJECT: VAAiwo/cl M14joe, .105'p/v1riow, for 9-A STANUAIIU FORM B COMPLETED BY: Q .4 UAIE: S z Erosion Control C-Factor P-Factor Method Value Value Comment ------------- -------- ---- 73.4Tz8 101L— --------------------------- /.00 boo 0.7r� �UI(. D., A)C.S ?Cove_ O.ol /.Oo p.t4-.A�. EXiJr. 6RA✓8[.,.gR4-/'v& 0./0 /•00 z' 09 ?c.. MAJOR PS. SUB AREA BASIN (a) BASIN (Ac) CALCULATIONS ----------------------- 7L•8%u 2•$IA. Sir& l•oc)-+ �0.54-v0.0) +(7.0. vCL/o) = O•l6Q- wrD. pI= A00 0 ----------------------------------=-----------------------------------� HUI/SF-B:1989 .! RAINFALL PERFORMANCE STANDARD EVALUATION --------- PROJECT: --------------------------------------------------------- I/Atjwo.mrts M r.vaP— fu 13 0/v4v STANDARD FORM A COT 9-A COMPLETED -------------------------------------------------------------------- BY: p— 4. /Z DATE: S y IDEVELOPED ERODIBILITY Asb Lsb I Ssb Lb Sb SU68ASIN ZONE (ac) (ft) (%) (feet) (%) (S) o 'r>wcfr7E ! N16 N---- I G30 0,47% G 30 I %j— 0,4.7 ------, /a ---------------------------------------------------------------------� DI/SF-A:1939 103 S. MELDRUM,. JRT COLLINS, CO 80521 STEWA RT&ALSSUC I ATES PH. 482-9331 FAX 482-9382 Consulting Engineers and Surveyors By: P I\ ;"' — Date: (,//-7/17-J Client: V,�.vwop i7- 4,/ e Sheet No. Hof Project: k /A o f i v F- ic i AA k; n r -f-u Subject: (D o Lt) A P, 1- c Dl-r c,-1 /.he 5. 0 U J I. - I -7/ " .? " .. 4-'/9 Y <1. "f; I > , r., C: STEWART&OSSOCIATES Consulting Engineers and Surveyors 103 S. MELDRUM, r-JRT COLLINS, CO 80521 PH. 482-9331 FAX 482-9382 By: P, 4'C - Date: 61171 1.-, Client: Sheet No. � of Project: V A Al W a p /c---s M A)or Subject: L A t-s —1 ) i A r. r , A m CA = 0 C FS U'OL. UAI 4 I JT z5x e-( /x 01 Eq /6 7. a 0.('6 4.'30 7- e7 4 0 z T& 0 32 58 3() 10 3 6 e.- 2 -C 4- 77 I 80 3r, 6 90 Izo 180 boY b 103 S. , i JRT STEWART&6SSOCIATES PH. 482-9331MELDRUMFAX 482-938 OLLINS, CO 805212 Consulting Engineers and Surveyors By: F�- A P., — Date: / 1-i ? Client: VA .0 wow 1- -r, v c . Sheet No. -S- of Project: V A At LQ 0 r K- f M A) 0 p— YU t3 Subject: F o A/ o r A t A 77 0 /U,F T: A /--'. 'i (/-Q 7 AP-, � A = 0, 8 ? .4r. 6 P- /-k V F- c- H is-T- 0 P 1 c- C= 0.5-0 is T-, -T-c- /'----- (S' - / ( / - 1 6, 5) P/Z- -- - ------ - -- 0. 'A A e-e- A = 0, 817 A c- Al C /1 0 + O.7 6 ............. D E- v, 00(' Y� : 0 1 W x 3! S- "< . 0.3 -:: C - r j. I-S7 r/./ - (/.?-x zoo ki "V, 2 5 j-, UM STEWART&ASSOk�-IATES PH 482-93311RFAX 482-938COLLINS, X482-9380LLINS, CO80521 Consulting Engineers and Surveyors By: i' A Date: Client: V Am wn Sheet No. 4_ of Project: V_ti,w(2x h 1 AI Vnk!_ I uR i) /vl.r Subject: f 7- 0 E, Al (,f/ A TF P 2 c; A) OF--'Ic:'. Z /LIPL' 1'_•V[0JJ %"I12F_. a 0,.S4. /qc l8. / 1-fIT7 (l 00 X o. /87) ,- (0, So x o, & i 3) J,S'I J9):S 00/Z' 1- /.3J r-1 aa� Fill (7Lyre X Z•f1`% G,SO C..F":J, HIJ7 Q coati 0,5`7 ,< Z,(o X Z• 87 q. r3 c.r. I. f i If 7 /OJ yr. . oa1 i'I I J 7 / o o R'_ C= l 7_, JC O • $ `) �' % J % G • H '% STEWART&kSS(tIATES 103 S. MELDRUM, , .ART COLLINS, CO 80521 PH. 482-9331 FAX 482-9382 Consulting Engineers and Surveyors By: R qie- Date: S/7.8l y Client: l/ n vcu o r>. r s y .T_ d/ r . Sheet No. 3 of Project: V A- N w o Q/c o e Ll R» /L/ r /n :+_1 - e , 17 i' Subject: S T o i�'- m ,y o c r) 4_ .n 7-in 11 1b .P/_Vr001 /) 0.7/ Ac, 29•G io Co,- AEL- TUll Ff-1cC= = G, /5 A . %S, 51r C (/• oo x o• ZQ U� q- Cv.5 D x 0,7-5 9) = D. (- L vt-v• 0zy, D.G r,/,!S-X 2-8`) - z..6q v�v• �ro//L = o•Gz x z.(oSx Z-8`I = 9.?q C.1;c, De,� 7ov/P_ T-c 0.6z)Soo v c v • r �� y,- : 1, Z r, o •G z. r, S Z x `) _ /l 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, Richard A. Rutherford, P.E. & L.S. President jrr enclosures r•� .• ���rcR •:'moo =, �F� :•' �-�- Ems•. 5023 ti STEWARTMSSOCIATES 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 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