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Plans 1 crry OF III I / I TIGARD V. W-3' N 89'54 46" E I Approvol b e! 12 g I iiI — Ui , 75.68' ()1 L i EEV 147 ©Otto __ _ inititIC -,Se I /I \ LE/ ,'-o" zo o, \ lit j TO F O(�� J AT F G RAGE I N 1 .,2 ,\ 0- I i) S 1 Ii CON �RU ION ' I ENTI�ANC' W/ I (� \ I I W V WASHED ROCK h\l� \ I STORM // 11// ( 1 \ LATERAL I_j______ffi / 1 / 7 R. I 1 l ANGLE FILTER FABRIC I I 16'—• 1/4" \ 1 PROPOSED NEW ADU: \ 1. / ! 1 1,368 SF LIVING +220 GARA j /LOT FENCE TO ASSURE SOIL IS TRAPPED I i \ 1 ADDRESS: SW 76th AVE w t I 11 TIGARD, OREGON 97 23 \ di 4568 SF � I \\ 11 / ' \ \ 8'-8" ' FILTEIDE BY R STRIP 80 SF),VEGETATED TYPE.D2 1°) 1 1 \\ 1 \ FACILITIES PER LOT.SEE CW / Z ' / \ 1GRAVEL 1 \ �/ DWG 770 ON SHEET C7 ANI� STORMWATER REPORT FOR CONSTPUCTION \ 11 s 1 MORE DETAILS ENTRANCE W � O SEWER WASHED ROCK \ 1 ORM il > , LATERAL , „ \ 1 ATERAL 4 ITS sr,2x2 NTS AND ATTACH I E-- 1 USE STITCHED LOOPS 2OTI-2 1/2" \ PROPOSED NEW PRIMARY DWE� ING UNIT: --• ,_ - � 1,732 SF LIVING +402 SF GA GE ' 3' minimum OVER "x 2" POSTS I �- \ 5790 SW 76th AVE. L__ \ \\ 1 from toe slope. ■ I111 TIGARD, OREGON 97223 \ \ 11 I NOTES: I � i I = 11\5 ', 1 �'I I O 1. BURY BOTTOM OF FILTER FABRIC 6" \ !_�,: o_ . .\ \ �+ 1 ' -Ni ^I VERTICALLY BELOW FINISHED GRADE. /�1� 2. 2"x 2" FIR, PINE OR STEEL 0 I 1 `''. I \ , 16 -3 1 4' _ / y� FENCE POSTS. J / ,�:= / 'il11 : IM 3. POSTS TO BE INSTALLED ON E _ _ \\\\\\\\\\\\\\\\\\ �� ,— , `s ELEV k / / UPHILL SIDE OF SLOPE. , 1 ) -� I T 4. COMPACT BOTH SIDES OF FILTER FABRIC I �r 1 , , ^ i_,- �� / P ;O F I L E TRENCH. I I g5 E �� / / % .- NTS 5. PANELS MUST BE PLACED I , I i�3A�, / / �cS/Z.CJ2Z 00053 ACCORDING TO SPACING ON 6g.A6 / f� DETAIL NO.940 I I _ .. , / __J �✓�T�� lo �V I - 1 1 I �'' / \ \ - II • 1 i_i:i_. ( /.— /',-- •❖:•: :,:: : / j y :•: :D,:,: ,:;• ,:,;: •:,:,:,;: y :,;•„•;,:•;,;::, :❖ I I ELEV 1 52 ' REQUIRED BASE MEASURES - ADDITIONAL CONSTRUCTION SITE BMPS .•.•••••.•:••••.••:•••••••.•.•.••••••••••••:•••.•.•:v....W.••.•:••••:, i :::::::, +:•:•:•��:•:•*:•:-M.:•: •:•*:.,•:•:•%• PERIMETER SEDIMENT CONTROL SWEEP STREET AND/OR HARD SURFACES DAILY AND A. -• •••,.•....�.•-o,.,.,,,,�.,.-...- - • � S. - CONSTRUCTION SITE ENTRANCE PROPERLY DISPOSED OF ALL MATERIALS. }. NV" ``..•.�...• `�...�� S�•�!,`:,_ STORM DRAIN INLET PROTECTION • REMOVED TEMPORARY CONTROL MEASURES WHEN NO * LONGER NEEDED I NON-STORMWATER POLLUTION CONTROL BMPSINSTALL GUTTERS AND DOWNSPOUTS AS EARLY AS POSSIBLE FILTER FABRIC MATERIAL TO CAPTURE RUNOFF TO PREVENT ADDITIONAL ONSITE STORE ALL PAINTS,STAINS,SOLVENTS AND HAZARDOUS EROSION E.G SWALES,RAIN GARDEN,FRENCH DRAIN. \ �\ ( I 6'MAXIMUM SPACING 36" WIDE ROLLSS * MATERIALSot N A COVERED STORAGE AREA . • IF EXISTING VEGETATION INT RIGHT O WAY IS DISTURBED VIEW SITE INFO: DISPOSED F ALL TRASH AND/OR DEBRIS THAT COULD AND SOIL IS EXPOSED,INSTALL PERIMETER SEDIMENT F 0\ T VIEW 80% ALLOWABLE COVERAGE=3,654 SF L0T SIZE 4,568 SF ENTER STORM SYSTEM IN A DUMPSTER OR TRASH CAN. CONTROL TO PREVENT MATERIAL FROM ENTERING PROPOSED COVERAGE= 2,118 SQ 46.% * CLEAN UP SPILLS PROMPTLY USING DRY CLEANUP ROADWAY NTS METHODS. FOR FURTHER INFORMATION BUILDER;: • DISPOSE OF CONCRETE WASHOUT IN APPROVED ON DESIGN CRITERIA SEE CBG SW 76th AVENUE, LLC LOCATIONS TO REDUCE POTENTIAL FOR DISCHARGE FROM CHAPTER 4 OF CLEAN WATER CONSTRUCTION SITE SERVICES EROSION PREVENTION ADDRESS: AND SEDIMENT CONTROL 15110 SQ BOONES FERRY ROAD, SUITE 500 PLANNING AND DESIGN MANUAL. LAKE OSWEGO, OREGON 97035 scale= 1"=10'-O"