The URL can be used to link to this page

Home My WebLink AboutGrading Plans - 05/05/2017 (2)Les ,Crav�fard Si#e Development Solutioc�s Prospect Place Lot 11 Blk 3 ��,�. B1701214 & B1701215 � � � Accepted 5/5/2017 DM April 26, 2017 REV May 4, 2Q97 Dan Mogen [via emai(: DMoqenC?fcqov.comj Stormwater/Uiility Development Review 700 Wood Street PO Bax 580 Fort Callins, CO 80522 RE: Drainage Memo for 1118 Woodford Avenue — singie family residence re-development Dear Dan, I am pleased to submit for your review and approval, this Final Drainage Memo for the Sing(e Family Residential Redevelopment of 111$ Woodford Avenue (Lot 'i1, Block 3, Praspect PC, FTC) in Old Town Fort Co[lins. I certify that this report for the drainage design was prepared in accordance with the criteria in the City of Fort Coflins Sform Drainage Manua! and the Drainage lnformatian for Residential Permit Applications Memo dated 10/2015. i apprecia#e your time and consideration in reviewing this submittal. Please cali if you have any questions. Respec Les Cra� Colorad� Lacated 9n Old Town 242 Linden Street �ort Collins, C� 80524 Phone: 970.773.0610 Email: LesC�l.esCrawfordPE.com Web: LesCrawfordPE.com Les Crawford P. . Site Development Solutions LOCATION AND SITE DESCRIPTION The project is located at 1118 Woodford Avenue approximately 150 feet east of Shields Street in Old Town Fort Collins. The existing lot is 6,315 square feet with a small single family residence and one shed in the rear yard. The existing grading is classic Type `B' lot grading with the lot draining to both the street in the front and the gravel alley in the rear. Slopes are less than 1% in the area with the street gutter averaging 0.8% to the east. The public allev suffers from ruttinq and minor puddlin4 but does adepuatelv drain to the east at an overall slope of 0.8%. Both public ways ultimatelv drain to the north- west corner of Woodford Avenue and Wayne Street. Rev nnaY a, zo� � Per the City of Fort Collins Floodplain mappinp and FEMA Map Panel Number.� 08069C0978G this proiect is not within anv mapped flood hazard area. Rev MaY a, zo�� PROPOSED PROJECT The proposed construction will remove all of the existing house, foundation and shed. Then construction of a two story 2,078 square foot home and 432 square foot garage and loft. Most of the existing large trees will be saved. Final grading will perpetuate the Type 'B' lot grading of the neighborhood with the high point being near the rear wall of the new house. Downspouts on both structures will direct roof runoff to the adjacent side yard/lot line swales. The lot line swales will carry only adjacent property runoff and are graded at 1% to the alley and the street. The addition of 1,597 square feet requires a Drainage Memo or Report and a Grading Plan by a Professional Engineer. However, the added hard surtace is less than 5,000 square feet so the project qualifies for an Exception to the Water Quality and Water Quantity Requirements. A check computation of the percentage of hard surtace found it to be 53% after construction. No additional storm drainage requirements apply to this project. No adverse effects are expected because of this proposed proiect. rzev MaY a, zo� � Located in Old Town Phone: 970773.0610 242 Linden Street Email: les�LesCrawfortlPE.com Fort Collins, GO 80524 Weh: LesCrawfordPE.com Les Crawford P.E. Site Development Solutions DRAINAGE CALULATIONS FOR 1118 WOODFORD AVENUE Fort Collins, Colorado NEW HARD SURFACE CALCULATION EXISTING PROPOSED Sidewalk - SF Sidewalk 90 SF House 987 SF House 2,078 SF Shed 216 SF Garage 432 SF Drive - - Drive 200 SF TOTAL 1,203 SF TOTAL 2,800 SF PROPOSED - EXISTING = 1,597 SF of new Impervious Surface WATER QUALITY AND WATER QUANTITY DETENTION EXCEPTION 1,597 SF of New Hard Surface is less than the 5.000 SF allowed. There for the exception is allowed. Located in Old Town Phone: 970.773.0610 242 Linden Street Email: LesC�?LesCrawfordPE.com Fort Collins, CO 80524 Web: LesCrawfortlPE.com Les Crawford P.E. Site Development Solutions �� PERCENT IMPERVIOUS CALCULATION I' HARD SURFACE Sidewalk 90 SF House 2,093 SF Garage 432 SF Drive 200 SF 1/2 Alley 400 SF 1/2 Street 720 SF Sidewalk 200 SF Boulevard - SF TOTAL 4,135 SF Percent Hard Surface Located in Old Town 242 Linden Street Fort Collins, CO 80524 TOTAL SURFACE LOT 6,315 SF 1 /2 Alley 1 /2 Street Sidewalk Boulevard TOTAL 53% 400 SF 720 SF 200 SF 240 SF 7,875 SF Phone: 970.773.0610 Email: LesC�?LesCrawfordPE.com Web: LesCrawfortlPE.com III EG 28'0" ASSUMED (6" BELOW OHD THRESHOLD) DOWNSPOUT �` S_ITE GENERAL NOTES' 1. SLOPE GRADEAWAV FROM BUILDING TO MAINTAIN A MINIMUM FALL OF 6" IN THE FIRST 10'. SWALES WITHIN 10' OF BUILDING FOUNOATION SHALL HAVE MINIMIIM 2% SIOPE 2. PROPOSED GR401NG IS SCHEMATIC IN NATURE AND SHOWN ONLY FOR pE$IGN INTENT. 3. CONTRACTOR TO VERIFV ALL FIEL� CON�ITIONS, EASEMENTS, PROPERTV LINES. ETC. PRIOR TO STARTING WORK 8 NOTIFV THE ARCHITECT IMMEDIATELV IF ANV pISCREPFNCIES, OMISSIONS, OR ERRORS OCCUR. 4. THE CONTRACTOR IS RESPONSIBLE FOR LOCATING UTILITIES PRIOR TO CONSTRUCTION STFRT. 5. REFER TO SOILS REPORT FOR SOIL PREP 8 FILL REWIREMENTS. NEIGHBOR'S EX GARAGE ENTRANCE 2% MIN AWAY FROM FOUNDATION(TYP) TOWAI I �9' n" FNGR 98' 6"on ARCH TOWALL TO FL @2% PLUS 6" MIN FOUNDATION REVEAL TOWALL TO FL @ 2°/a PLUS 6" MIN FOUNDATION REVEAL FI �R'A" SWALE HP FF .�iCl'Fi" =100.0 Les Crawford PE SITE DEVELOPMENT SOLUTIONS COLORADO'KANSAS'MONTANA'NEBRASKA NORTH DAKOTA * OKLAHOMA * UTAH * WYOMING 242 LINDEN ST FORT COLLINS CO Les @LesCrawfordPE.com (970) 773-0610 1 % SWALE FG APPROX 28'2" EG 27'5" � The Bells LLC 1118 Woodford Street Fort Collins, Colorado zo•n��ev °'"""" EG 27'11" ASSUMED (7" BELOW OHD THRESHOLD) � EG 27'10" DOOR THRESHOLD TO —__ I I ALLEY FL 6"-7" _ = OR 5+% � 10' SETBACK — 2% FLOOR SLOPE TO DOOR �� THRESHOLD FF 28'6" ��=- - - (98'0" ON ARCH) ;�� i 1 � SWALE I + HP/G�3 1 yg� 5�� I �I . � � ..� I � 1 � SWALE FI �R'A" SWA�E HP -2% MIN AWAY FROM FOUNDATION(TYP) SWALE ' � �I.- -` I-� _ �- \ WOODFORD AVENUE n SITE PLAN `�J 1/16''�= 1'-0" rev S14/17 T �f ZO' ALLEY EXST. ELEC. TRANSFORMER I NEW CONC.APRON S S I . .. � E EXST. CABLE BOX Z, - — �� ,�� /'� Y . r �U WI o }Q a �� o ' m � �W ;—� � v� �H — — — — — — — — — . �- = Q�� ,- E L --� �O NEW TEMP. POWER S - PEDESTAL I �VV �-_- - � W 432 SF - NEW (MAIN) ELEC. METER @ I ' GARAGE �� ' -- GARAGE � S WI LOFT � N l NEW SANITARY SEWER I � ABOVE I CLEAN-OUT I _ - - - - EXTEND EXST. 4" I � I SANITARY SEWER LINE W lE TO NEW HOUSE @ 2°/a I i SLOPE MIN. S - SECONDARY ELEG SERVICE � � I ? I i �� - -- -- — UNE TO HOUSE -- i I � 4I _ �� $� _ p�� $� _ p�� - NEW WATER LINE FROM � W 40' - 0" E�I MAIN HOUSE TO � GARAGE/LOFT '- 0° S 30' - 0" 5' -" NEW SANITARY SEWER CLEAN-OUT SID SID ' YARD E YARD � SET- Vy � SET-I ,' - iBACK IBACK °� M l � S ' I W E �/ � Mm � NOTES: i5' - 6"� 29' - 0" �� 5' - 6" � '- L EXISTING GAS, WATER, & �� m SEWER SERVICES TO BE �.!_ �. -I ___ _ —,i --L �_ _— � REUSED WITH � W�� CONSTRUCTION OF NEW � � � HOUSE & GARAGE/STUDIO I 2. PROVIDE 1" CONDUIT FROM HOUSE TO COMCAST PEDESTAL & 1" CONDUIT I I FROM HOUSE TO GARAGE/STUDIO FOR CABLE 4� _ 6��--!� �' - 0" 29' - 0" 1' - 0" ;�'-4� _ 6� � � o ' � I N I f � I I 2,078 SF TWO � �I� STORY HOUSE I � — GAS METER- MAINTAIN I i I 3' MIN. DISTANCE TO OPERABLE WINDOWS I o i �� WATER ENTRY INTO I - 1 I ,_.- � HOUSE �- I G � - i WATER SERVICE TO � - W NEW HOUSE- � �o - � � � � CONNECT TO EXISTING - -- � / -- - - I SERVICE JUST NORTH � �o �y,� � OF EXISTWG WATER o�n �-��'i o�Q, U METER PIT a I � �' I N Z_�-- EXISTWG WATER METER .- _--- r- p w PIT -- - u�. � EXISTING 3/4" COPPER -- - � -, � `�__ __-= i WATER SERVICE W G EXISTING CURB CUT WOODFORD AVENUE , � PROPOSED SITE & UTILITY PLAN � s.os.�� 1/16° = 1'-0" � � The Bells LLC � � �, � ; �, 1118WoodfordStreet a��h;te�t��e� Fort Collins Colorado 775westmou[ainavenue phone 970.2311040 7 fort collins, colarada 80527 e-mail: heidishuff@gmail.com