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HomeMy WebLinkAboutPlan, Tentative APPLICANT 9/7/2007 LEGEND PROVIDE 18" X 24" SIGN. DESIGNATED ~/ CONCRETE WASH. AREA ~ (J) I- If:!! (\J HAYDEN BRIDGE ~l ... EL BONITA. ti J RO l 1/ WRAP STRAW BALES WITH / 4 MIL BLACK V1S0UEEN. ////////, ///////// '////////. /////////:' //////.~//. /////////; ,////// /, /////////' ////// /, ////./////' / _ "J'~~~~/ '. _ _ _,_ ~~~~~~~~l /' / - PROVIDE 6 STRAW BALES// TO MAKE SQUARE CONTAINMENT AREA. ~" \\I\\\ "11 ,/"', }" \ . .ft- ~, ". .....";.~;::\ I ',-... "5:7 \;.::;-> '.... r.-t ll, \ \..,~t "'., 'Y ';\(''''''.1 '. , '"'' ..'~ '< ,...).,r},.t,\ ......".r.-..~.... S.... \J '(1;;;' \. :~. t.:ip ,:.~:~. CBJ (<:..:::> l~<J -' (h I. " ","'\, l. \j \i\ "".' ,1 ,\ ~ " SEDIMENTA nON CONTROL FABRIC, AMOCO 2122 OR APPROVED EQUAL. SECURE FABRIC TO POST WITH TIE WIRE AT TOP, BOTTOM, AND CENTER OF POST. J SUPPORT POST 10' O.C. 2 'x 2 'x 5' DOUGLAS FIR OR APPROVED EQUAL. INSURE POST IS STABLE AND CAN SUPPORT FENCE. 40 40 80 EXISTING TREE TO REMAIN ANCHOR VISQUEEN /" WITH SOIL BERM. .,- '~ 1m I ~ l SCALE IN FEET GENERAL SITE INFORMATION l /1 EXISTING TREE TO BE REMOVED CONCRETE ~YASH AREA DETAIL N.T.5. ,. TYPE OF DEVELOPMENT: SINGLE FAMIL Y RESIDENTIAL SUBDIVISION PUBLlCL Y OWNED AND MAINTAINED STREETS AND SEWER SYSTEMS' CONSTRUCTION ACTIVITY WILL CONSIST OF: PUBLIC STREETS WITH CURB, GUTTER, ASPHALT PAVING AND STREET LIGHTS PUBLIC STQRM AND WASTEWATER SEWERS. . - PUBLIC UTILITY SERVICES. PROPOSED CONSTRUCTION SCHEDULE: BEGINNING DA TE: COMPLETION DA TE: PROTECTED DOWNSTREAM -,....."..... ..._.~. l . ~ ~ " DISTURBED GROUND DUE TO ON-SITE CONSTRUCTION. I ~ ~ >>~::~~~~:~~:,~:.:~:>?:s:,~:~~~:~~~:~ "\. " " " "'a '....., .., ".. ".... " ....." '... SIL T FENCING (DENOTES LIMITS OF DISTURBANCE) PROTECTlVE FENCING (TREES) ~MPO~RYSroCKP~EAR~ xx x 2. BACKFILL BOTTOM 6" OF FABRIC WITH NA TlVE TOPSOIL. MINIMIZE DISTURBANCE OF SIL T DURING REMOVAL OF FENCE. AREA OF DISTURBANCE JUNE 2007 AUGUST 2007 .1 J. .J a. p ,.. BURY 12" MIN ,,/' /,/' ,,,.', ....l EXISTING CONTOUR FINISH CONTOUR 4. DEVELOPMENT AREAS TOTAL AREA: AVERAGE LOT SIZE: DISTURBED AREAS FOR PUBLIC ROAD CONSTRUCTION: DISTURBED AREAS FOR RESIDENTIAL LOTS: PERCENT OF SITE DISTURBED: 7.47 ACRES 0.20 ACRES 1.36 ACRES 4.02 ACRES 100 PERCENT f I I L t r I I I . SEDIMENTATION CONTROL FABRIC TYPE SILT FENCE N. T.S. "",.. .-A I I - , ! I I .J I o CONSTRUCTION NOTES 175. 176. .A .. CONST AGGREGA TE CONSTRUCTION ENTRANCE PER DETAIL. CONST DRA/N PROTECTION, PROVIDE APPROVED SED/MENTA TlON INSERT DAM FOR CURB INLETS AND APPROVED SEDIMENTATION INSERT BAGS FOR CATCH BASINS. CONST PROTECTIVE FENCE AI?OUND TREES TO I?EMAIN. TO BE PLACED PRIOR TO ANY CONSTRUCTION ACTIVITY. CONST SIL T FENCE PER DETAIL TO BE PLACED. PRIOR TO ANY CONSTRUCTION ACTIVITY. CONST STRAW BALE AND GRAVEL CHECK DAM. CONST TEMPORARY BRUSH, FlL TER PER DETAIL THIS SHEET. PLACE NO MORE THAN 10 FROM RIP RAP OUTLET STRUCTURE. REMOVE BMP ONCE DISTURBED AREA WITHIN SLOUGH IS STABILIZED. PLACE COCONUT MAT EROSION BLANKET IN BOTTOM OF BIO-SWALE AFTER SEED MIX IS IN PLACE. CONST CONCRETE WASH AREA. PROVIDE WATERTIGHT CONTAINMENT STRUCTURE FOR STORAGE OF CHEMICAL/HAZARDOUS CONSTRUCTION MA TER/ALS /") f~ () L 900 DISTURBED AREAS OFF-SITE: 2.38 ACRES SOIL TYPE ON THIS SITE IS 1175 MA LA BON: SILTY CLAY LOAM, DARK BROWN SILTY CLAY LOAM, BROWN SILTY CLAY LOAM BROWN CLAY LOAM PERMEABILITY IS MODERA TEL Y SLOW. HAZARD OF WA TER EROSION IS SLiGHT. APPLICANT: COREY DEVELOPMENT, LLC 3956 MIRROR POND WA Y EUGENE, OR 97408 EXCESS EXCAVATION TO BE TRANSPORTED OFF-SITE. TEMPORARY PLACEMENT OF MATERIAL TO BE ADEQUATELY PROTECTED WITH PLASTIC OR SIL T FENCING PRIOR TO EXPORTING OFF-SITE. TEMPORARY SITE STABILlZA TlON CONSISTS OF PLASTIC OR MULCHING OF DISTURBED SOILS, PERMANENT SITE STABILlZA TloN SHALL CONSIST OF LANDSCAPING AND PLANTING. NEW CONSTRUCTION AND SUBSTANTIAL IMPROVEMENT OF ANY RESIDENTIAL STRUCTURE ON LOTS 13-18 SHALL HAVE THE LOWEST FLOOR INCLUDING BASEMENT, ELEVATED TO ONE FOOT ABOVE BASE FLOOD ELEVATION (449') OR 450.0'. /, "')() ( . 5. 177. ,. PRIOR TO ANY GROUND DISTURBANCE ON THE SITE, ONE (1) INSPECTION WITH LOAP STAFF IS REQUIRED. ISSUANCE OF THIS PLAN DOES NOT RELIEVE THE PERMIT HOLDER AND/OR THE CONTRACTOR FROM ALL OTHER PERMITTING REQUIREMENTS. PRIOR TO BEGINNING CONSTRUCTION ACTIVITIES, ALL OTHER NECESSARY APPROVALS SHALL BE OBTAINED. 8. 178. 6. J. ~\ r . \ \ 'l kill ~ I t J \ I J ~ l~ I 1 . ~ i, II ~ ~ \ 1~ ;' ~ 1\ i: fIi 11 \ I I I I: _ I , I . 11 EXISTING 14' PUBLIC ,r {~~ or /' / r~ -~.., , ." .,. . 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'. -W- .. ..,itJr.t :-~'l-/~:. -}"----;4_4f!@~ \,436 LF@ \ \, I /~~_~~~.~~fJ.81H._~_S.TRE'Er.___6frfr _ 76 ':,7:,.>", "\ \. \ \ 179. 180, ~, I . I 7. 'Y / 2. THE EROSION AND SEDIMENT CONTROL MEASURES SHOWN ON THE PLAN ARE THE MINIMUM \) REQUIREMENTS FOR ANTICIPA TED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE G~~Ot. MEASURES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND TO ENSURE THAT (~ ,\ SEDIMENT AND SEDIMENT-LADEN WATER DOES NOT LEAVE THE SITE. ,I O~ OC"- ') 0 ~ C"- THE IMPLEMENTA TION OF THE ESC? AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT: AND ~/ 0S0~, ,0\ UPGRADING OF THE EROSION AND SEDIMENT CONTROL MEASURES IS THE RESPONSIBILITY OF THE Cf(... 6 PERMIT HOLDER AND/OR THE CONTRACTOR UNTIL ALL CONSTRUCTION IS COMPLETED AND ACCEPTED ~\t\. AND VEGETATION/LANDSCAPING IS ESTABLISHED. THE EROSION AND SEDIMENT CONTROL MEASURES ON ACTIVE SITES SHALL BE INSPECTED AND MAINTAINED DAILY AND WITHIN THE 24 HOURS AFTER ANY STORM EVENT OF GREATER THAN 0.5 INCHES OF RAIN PER 24 HOUR PERIOD. MEASURES SHALL BE INSPECTED BY THE PERMIT HOLDER AND/OR THE CONTRACTOR AFTER EACH. RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL ANY REQUIRED REPAIRS OR ADJUSTMENTS SHALL BE MADE IMMEDIATELY: THE EROSION AND SEDIMENT CONTROL MEASURES ON INACTIVE SITES SHALL BE INSPECTED A MINIMUM OF ONCE EVERY TWO (2) WEEKS OR WITHIN 48 HOURS FOLLOWING A STORM EVENT. 50' R/W 181. .,..... 183. 186. 9. r '! r/ () . 4. CONSTRUCTION ENTRANCE DETAIL ISOMETRIC VIEW ,J r'I' r 1 N. T.S. 000 ('1' -..I ,.. ,,' ._J /07 LF@ XX' . xJc ..""" ~.-. \ '\'xx XX,1 I I ( ( ........,_.. ..~...... 5. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE PROTECTED FROM DAMAGE AT ALL TIMES. CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL PERMANENT RE-VEGETATlON HAS BEEN STABILIZED. ANY MEASURE THAT IS DAMAGED OR DESTROYED SHALL BE REPAIRED OR REPLACED IMMEDIATELY: "' \ \ '\ ~'\ ~ ..it't.~ , , ~ ( - 6. STREET AND PARKING LOT SWEEPING SHALL BE PERFORMED AS NEEDED, OR WHEN DIRECTED BY THE CITY INSPECTOR, TO ENSURE PUBLIC RIGHT -OF - WA YS ARE KEPT CLEAN AND FREE OF DEBRIS STREET FLUSHING IS PROHIBITED. ~ --.....1 7. WHEN TRUCKING SATURATED SOILS FROM THE SITE: EITHE.lf,' WATER-TIGHT TRUCKS SHALL BE W$ED OR LOADS SHALL BE DRAINED ON SITE UNTIL DRIPPING HAS BEEN REDUCED TO NO MORE lHAN ON[, (17-~-- GALLON PER HOUR. SEDIMENT-LADEN WATER WILL NOT BE ALLOWED TO ENTER THE STORM WATER SrSTEM. r 11 ..J ,! ) ~-) i '- . 8. EXTRACTED GROUND WATER FROM EXCAVATED TRENCHES SHALL BE DISPOSED OF IN A SUITABLE MANNER WITHOUT DAMAGE TO ADJACENT PROPERTY, CITY'S STORM WATER SYSTEM, WATER FEATURES, AND RELATED NATURAL RESOURCES. APPROVAL OF A DEWATERING SYSTEM DOES NOT GUARANTEE THAT IT WILL MEET COMPLIANCE OR BE ACCEPTABLE FOR USE IN ALL SITUATIONS. MODIFICATIONS TO THE OEWATERING SYSTEM WILL BE REQUIRED IF COMPLIANCE CANNOT BE MET. AT NO TIME WILL SEDIMENT-LADEN WATER BE ALLOWED TO LEAVE THE CONSTRUCTION SITE. 50' R/W- A SUPPL Y OF MATERIALS NECESSARY TO MEET COMPLIANCE AND IMPLEMENT THE LDAP, OR OTHER BEST MANAGEMENT EROSION PRACTICES UNDER ALL WEA THER CONDITIONS, SHALL BE MAINTAINED AT ALL TIMES ON THE CONSTRUCTION SITE. 10. NO HAZARDOUS SUBSTANCES, SUCH AS PAINTS, THINNERS, FUELS AND OTHER CHEMICALS, SHALL BE RELEASED ONTO THE SITE, ADJACENT PROPERTIES, OR INTO WATER FEATURES, THE CITY'S STORM WA TER SYSTEM, OR RELA TED NA TURAL RESOURCES. DISPOSE OF ALL MA TERIALS IN A SAFE MANNE/r. 1,. THE ESC FACILITIES SHALL BE INSPECTED DAIL Y BY THE CONTRACTOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKL Y REVIEWS OF THE ESC FACILITIES DURING THE WET SEASON (OCTOBER 1 TO APRIL 30) AND OF MONTHLY REVIPhS DURING THE DRY SEASON (MAY' 1 TO SEPTEMBER 30). 9. @ 1432 LF ~ f . I /. () () JL. ..... .,~ 0- ..,1 '. ~ " , 1 < :3(} " ,'.,.. .If ..,..t.. . , :. t'..' ~, :)'= I::' 1<:': "fr-' .''')0 ""': ..- at \\. -'t f .. i''''' "\", · t' . " . or.' ::.<.~( , .. -r_ ...... .. /~ ~~~:~ ~-(~, "'~" '..' < ,.,g'; ..~.... ,. ..<< .fl'-. _... <" \ ~')'o(,. / '-I- ....... ....,.. '. ,'...... ,.....,.... . n.. ". wl - ' .'. 'It." .. . "I . (\.. .' :>1 (': :>"1'<<'. 179'STAKE BIO-BAG CHECK DAMS \.!.!...VAT 50' INTERVALS ALONG ENTIRE LENGTH OF DRAINAGE -SWALE. ~ \ \ 451.6 /-; T'P t':' F::::I..".. r '-P K r.:~' :.. -,-. , t -"'I .......... . ';'..~ tlIl ...~.... r- ~.-' -.... ...............,.......... \ .... 1 "- , --.. .........\ \ ~ v :1' BRUSH FILTER DETAIL - SC-5 N. T. S. , \ \ . xx xx . ():3 'I "'1'.,11 ,.",~ '.r", ~..Mo ,.,...., ,..... ......... ~..,.,.. "'''''''J "AI'''''''" ,,""'" r.; SILT FENCE DENOTES LIMITS OF DISTURBANCE ~~I t) () () (-J ,,' .I r -"1 . ,J (J...:. " ~c...... 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