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' <br />1 <br />6 <br />T MIN <br />LEVEL <br />V MIN <br />EMBED <br />6" MIN CRUSHED - <br />ROCK BEARING PAD <br />�- GUARDRAIL <br />BY OTHERS <br />T MIN --{ I AS REQUIRED <br />I <br />j <br />LEVEL <br />V MIN E <br />1 STRUCTURAL FILL <br />1.5 COMPACTED TO 95% <br />ASTM D1557 <br />DRAINAGE AGGREGATE <br />�- 4" MIN DIAMETER PERFORATED RIGID PVC PIPE WITH <br />6" COVER AND 2" BEDDING OF V WASHED ROCK <br />PROVIDE MIN 1% CONTINUOUS SLOPE TO OUTLET <br />FOUNDATION SOILS MUST BE APPROVED PRIOR TO PLACING THE LEVELING <br />PAD - OVEREXCAVATION COMPACTION, OR OTHER METHODS TO PROVIDE A <br />FIRM AND STABLE BASE MAYBE REQUIRED. <br />TYPICAL 2.5° WALL SECTION <br />NOT TO SCALE <br />TYPICAL 7.5' WALL SECTION <br />NOT TO SCALE <br />'T IVIIIV vlrvlvll.._II_I♦ I �I\I \I I V V I II L VVI 111 <br />6" COVER AND 2'° BEDDING OF 1" WASHED ROCK <br />PROVIDE MIN 1% CONTINUOUS SLOPE TO OUTLET <br />FOUNDATION SOILS MUST BE APPROVED PRIOR TO PLACING THE LEVELING <br />PAD - OVEREXCAVATION COMPACTION, OR OTHER METHODS TO PROVIDE A <br />FIRM AND STABLE BASE MAYBE REQUIRED. <br />N <br />A <br />0 20 40 <br />FEET <br />FALL PROTECTION <br />BY OTHERS <br />�j GUARDRAIL <br />BY OTHERS <br />3` MIN AS REQUIRED <br />I LEVEL <br />C 1 A ®4t� <br />p[ .. - t' "' <br />3 <br />i <br />6 <br />4 <br />1' MIN 4 � STRUCTURAL FILL <br />COMPACTED TO 95% <br />3' MIN p ASTM D1557 <br />LEVEL <br />o.f t• D ' / / 1.5 <br />DRAINAGE <br />.. AGGREGATE <br />a a�� <br />11 MIN''e <br />EMBED1, <br />6" MIN CRUSHED 4" MIN DIAMETER PERFORATED RIGID PVC PIPE WITH <br />ROCK BEARING PAD 6" COVER AND 2" BEDDING OF 1" WASHED ROCK <br />PROVIDE MIN 1 %CONTINUOUS SLOPE TO OUTLET <br />FOUNDATION SOILS MUST BE APPROVED PRIOR TO PLACING THE LEVELING <br />PAD - OVEREXCAVATION COMPACTION, OR OTHER METHODS TO PROVIDE A <br />FIRM AND STABLE BASE MAYBE REQUIRED. <br />TYPICAL 5' WALL SECTION <br />NOT TO SCALE <br />TYPICAL 10' WALL SECTION <br />NOT TO SCALE <br />CAI I. DDnTC/TlnKl <br />Y IVIIIV VIlIIYILI LI\1--11, VI\!'\ILV I\I I- VV f-ILL ­­ <br />6'. COVER AND 2" BEDDING OF 1" WASHED ROCK <br />PROVIDE MIN 1% CONTINUOUS SLOPE TO OUTLET <br />FOUNDATION SOILS MUST BE APPROVED PRIOR TO PLACING THE LEVELING <br />PAD - OVEREXCAVATION COMPACTION, OR OTHER METHODS TO PROVIDE A <br />FIRM AND STABLE BASE MAYBE REQUIRED. <br />NOTES: <br />1. DESIGN OF THE BLOCK RETAINING WALL IS BASED ON THE SOILS REPORT, DATED MARCH 29, <br />2019, BY ASSOCIATED EARTH SCIENCES, INC. THE FOLLOWING DESIGN VALUES WERE USED: <br />INTERNAL ANGLE OF FRICTION FOR RETAINED SOIL = 32 DEGREES <br />UNIT WEIGHT OF SOIL = 125 POUNDS PER CUBIC FOOT (PCF) <br />MAXIMUM WALL HEIGHT = 10 FEET <br />BATTER OF WALL = 1 H:6V (HORIZONTAL:VERTICAL) <br />BACKSLOPE = LEVEL <br />EMBEDMENT DEPTH = 1-FOOT MINIMUM <br />TRAFFIC SURCHARGE = 250 PSF <br />SEISMIC SURCHARGE = 0.25G <br />2. SUBGRADE PREPARATION, DRAINAGE PROVISIONS, AND OTHER RELEVANT SOIL <br />CONSIDERATIONS SHALL BE IN ACCORDANCE WITH THE ABOVE REFERENCED SOILS REPORT. <br />3. SUBGRADE MATERIALS LIKELY TO CONSIST OF EXISTING LOOSE TO MEDIUM DENSE FILL OR <br />NATIVE GLACIAL SEDIMENTS. LOOSE FILL/UNSUITABLE SOIL WILL BE EXCAVATED TO EXPOSE <br />SUITABLE NATIVE SUBGRADE AND REPLACED WITH STRUCTURAL FILL. <br />4. OBSERVATION OF SUBGRADE, ROCK BEARING PAD, PLACEMENT OF DRAIN PIPE, GRAVEL, AND <br />FINISHED BLOCKS BY GEOTECHNICAL ENGINEER IS REQUIRED. <br />5. WALL ELEVATIONS AND LAYOUT ARE TO BE PER CIVIL DRAWINGS. <br />6. CONTRACTOR TO VERIFY ALL LOCATIONS, ELEVATIONS, DIMENSIONS AND SETBACKS. <br />GENERAL NOTES: <br />WALL UNITS <br />1. WALL UNITS ARE TO BE ULTRA -BLOCK AS MANUFACTURED BY ULTRA -BLOCK, INC. <br />DRAINAGE AGGREGATE <br />1. DRAINAGE LAYER MATERIALS FOR WALL DRAIN SHALL BE CRUSHED ROCK MATERIAL MEETING <br />WSDOT STANDARD SPECIFICATION 9-03.9(2) FOR SHOULDER BALLAST OR APPROVED EQUAL. <br />COMMON BACKFILL (STRUCTURAL FILL) <br />1. SOIL PLACED BEHIND THE WALL DRAIN SHALL BE INORGANIC SOIL PLACED AND COMPACTED TO <br />0 <br />95 /o OF MODIFIED PROCTOR MAXIMUM DRY DENSITY TH D1557 . ASTM MAXIMUM PARTICLE SIZE <br />( ) E <br />0 <br />SHALL BE 4 INCHES. THERE SHALL BE LESS THAN 20/o BY WEIGHT OF PARTICLES GRATER THAN <br />1-1/2 INCHES AND MAXIMUM 20% BY WEIGHT PASSING THE #200 SIEVE. THE PLASTICITY INDEX <br />SHALL BE LESS THAN 20. EXCAVATED SITE SOILS MAY BE ACCEPTABLE IF THEY ARE MOISTURE <br />CONDITIONED TO ALLOW COMPACTION TO THE SPECIFIED LEVEL. <br />BEARING PAD CONSTRUCTION <br />1. BEARING PAD SHALL BE PLACED AS SHOWN ON THE CONSTRUCTION DETAILS WITH A MINIMUM <br />THICKNESS OF 6 INCHES. <br />2. FOUNDATION SOIL SHALL EITHER BE FIRM AND UNYIELDING NATIVE SOIL OR STRUCTURAL FILL <br />PLACED AND COMPACTED TO AT LEAST 95 PERCENT OF MODIFIED PROCTOR DENSITY. <br />3. SOIL BEARING PAD MATERIAL SHALL BE COMPACTED TO PROVIDE A HARD SURFACE ON WHICH <br />TO PLACE THE FIRST COURSE OF UNITS. COMPACTION WILL BE WITH MECHANICAL PLATE <br />COMPACTORS TO A FIRM AND UNYIELDING CONDITION AS DETERMINED BY THE GEOTECHNICAL <br />ENGINEER OR THEIR REPRESENTATIVE. BEARING PAD SHALL BE INCLINED AT 6HAV. <br />4. BEARING PAD SHALL BE PREPARED TO ALLOW INTIMATE CONTACT OF BLOCKS WITH PAD. <br />BLOCK UNIT INSTALLATION <br />1. FIRST COURSE OF BLOCKS SHALL BE PLACED ON THE BEARING PAD. THE UNITS SHALL BE <br />CHECKED FOR BATTER AND ALIGNMENT. THE FIRST COURSE IS THE MOST IMPORTANT TO ENSURE <br />ACCURATE AND ACCEPTABLE RESULTS. <br />2. ENSURE THAT UNITS ARE IN FULL CONTACT WTH BASE. <br />3. UNITS ARE PLACED SIDE BY SIDE FOR FULL LENGTH OF STRAIGHT WALL ALIGNMENT. ALIGNMENT <br />MAY BE DONE BY MEANS OF A STRING LINE OR OFFSET FROM BASE LINE TO A MOLDED FINISHED <br />FACE OF THE UNIT. ADJUST UNIT SPACING FOR CURVED SECTIONS ACCORDING TO THE <br />MANUFACTURER'S RECOMMENDATIONS. <br />4. PLACE AND COMPACT FILL BEHIND UNITS. <br />5. CLEAN ALL EXCESS DEBRIS FROM TOP OF UNITS AND INSTALL NEXT COURSE. <br />6. LAY EACH SUCCESSIVE COURSE SO THAT SHEAR CONNECTORS ARE ENGAGED. STAGGER EACH <br />LAYER OF BLOCKS BY HALF BLOCK LENGTH. <br />7. REPEAT PROCEDURES TO THE EXTENT OF THE WALL HEIGHT. <br />INSPECTIONS <br />1. INSPECTION OF THE WALL BASE, DRAIN, BACKFILL, AND BLOCK PLACEMENT <br />BY THE GEOTECHNICAL ENGINEER IS REQUIRED. <br />NOTE: USE OPTIONAL LARGER COLUMN <br />STACK IF SINGLE STACK OF HALF <br />20 BLOCKS DOES NOT FILL VOID. <br />iN7 <br />ULTRA -BLOCK WALL <br />90' CORNER <br />ULTRA -BLOCK WALL <br />INSIDE 90' CORNER <br />TERED WALLS ' <br />V cn I IvAL CORNER STACK <br />ULTRA -BLOCK CORNER DETAILS <br />NOT TO SCALE <br />o � O EE <br />n U <br />N <br />^� <br />W <br />U) <br />; 00 <br />C �v <br />co o <br />4-1 <br />co <br />-a E <br />o a> <br />0> <br />c <br />Ui o <br />co <br />O <br />r1_ <br />V <br />...° <br />N <br />0 <br />(D N <br />O <br />W <br />,rnrn E <br />QN P <br />N <br />> <br />> N a <br />n <br />EofT <br />o (j v <br />/�I.z�� <br />c <br />. .. <br />N <br />LO <br />C7 <br />M <br />s> <br />E <br />O <br />c0 <br />0) <br />O� <br />Q <br />¢> S r- E <br />6 N 6 <br />0 <br />b, <br />_�. <br />roc, <br />N 0' <br />rnY � c�a <br />v <br />J <br />W <br />Z <br />CL <br />O <br />ON <br />F- <br />O. <br />V <br />In <br />Z <br />C <br />U) <br />O <br />111 <br />Q <br />ry <br />1 <br />L>LI <br />~ <br />O <br />11J <br />Wz <br />Wy <br />J <br />.L. <br />/ <br />W <br />W <br />DRAWN BY: E I n I <br />CHECKED BY: A V V R <br />V <br />DATE <br />2/20 <br />PROJECT NO. <br />20180567EO02 <br />F I <br />G U R <br />E <br />1 <br />