HomeMy WebLinkAboutP_ErosionControlPlan_Meadow_View_Lot04_190208_v2PR17000137
B19002102
V2
REVISION
Received: 05/31/2019 / aalexander
BUILDING DIVISION
APPROVEDBUILDING DIVISION
THIS SET OF APPROVED PLANS MUST BE ON THE JOB AT ALLTIMES DURING CONSTRUCTION. THIS BUILDING IS NOT TO BEOCCUPIED UNTIL AFTER FINAL INSPECTION BY THE RENTONBUILDING DIVISION AND RECEIPT OF CERTIFICATE OFOCCUPANCY.
APPROVAL SHALL NOT BE CONSTRUED AS THE AUTHORITY TOVIOLATE OR CANCEL ANY PROVISIONS OF CODES, ORDINANCES,OR OTHER REGULATIONS ENFORCED BY THIS CITY.
DATE: 06/10/2019
WOODEN STAKE
LIVE STAKE
ROLLSPACING
DEPENDS ON SOIL
TYPE ANDSLOPE
STEEPNESS
STRAW ROLLSMUST BE
PLACEDALONG SLOPE
CONTOURS
4'
3'-30', SEE NOTE 2.3
SEDIMENT, ORGANICMATTER,
ANDNATIVE SEEDS ARE
CAPTUREDBEHIND THE ROLLS
ADJACENTROLLS SHALL
TIGHTLY ABUT
8"-10" DIA.
3"-5", SEENOTE 2.2
NOTES:
1.CONDITIONS OF USE
1.1.INSTALL ON DISTURBEDAREAS THAT REQUIREIMMEDIATEEROSION PROTECTION.
1.2.USEON SLOPES REQUIRINGSTABILIZATION UNTIL PERMANENT VEGETATIONCAN BEESTABLISHED.
1.3.CAN BEUSED ALONG THEPERIMETEROFAPROJECT, ASACHECK DAM IN UNLINED DITCHES ANDAROUND TEMPORARY STOCKPILES.
1.4.WATTLES CAN BE STAKEDTO THEGROUND USING WILLOW CUTTINGSFOR ADDED REVEGETATION.
1.5.RILLINGCAN OCCURBENEATH ANDBETWEENWATTLES IF NOTPROPERLY ENTRENCHED, ALLOWING WATERTO PASS BELOWAND BETWEENWATTLES.
2.DESIGN AND INSTALLATION SPECIFICATIONS
2.1.ITISCRITICALTHATWATTLESAREINSTALLED PERPENDICULAR TO THE FLOW DIRECTION AND PARALLELTOTHESLOPE CONTOUR.
2.2.NARROW TRENCHES SHOULD BE DUG ACROSS THE SLOPE, ON CONTOUR, TO A DEPTH OF 3 TO 5 INCHESONCLAYSOILS ANDSOILS WITH GRADUAL SLOPES.
ON LOOSESOILS, STEEPSLOPES, AND DURINGHIGHRAINFALL EVENTS, THE TRENCHES SHOULD BEDUG TO ADEPTHOF 5 TO 7 INCHES, OR1/2TO 2/3 OF THE
THICKNESS OF THEWATTLE.
2.3.START CONSTRUCTION OFTRENCHES ANDINSTALLINGWATTLESFROM THE BASEOFTHESLOPEANDWORK UPHILL. EXCAVATED MATERIALSHOULDBE
SPREAD EVENLYALONG THE UPHILL SLOPEAND COMPACTED USING HAND TAMPING OROTHERMETHOD. CONSTRUCTTRENCHESAT CONTOUR INTERVALS
OF3TO30 FEET APART DEPENDINGON THE STEEPNESS OF THESLOPE, SOILTYPE, AND RAINFALL. THE STEEPER THESLOPETHE CLOSER TOGETHER THE
TRENCHESSHOULD BE CONSTRUCTED. VERTICAL DISTANCE BETWEENWATTLES IS NOTTOEXCEED 10FEET.
2.4.INSTALL THE WATTLESSNUGLY INTO THETRENCHESAND ABUTTIGHTLY END TOEND. DO NOTOVERLAP THEENDS.
2.5.INSTALL STAKES AT EACHEND OF THE WATTLE, AND AT4FOOT CENTERSALONG THE ENTIRE LENGTH OF THE WATTLE.
2.6.IFREQUIRED, INSTALLPILOTHOLESFORTHE STAKESUSINGA STRAIGHTBAR TODRIVEHOLESTHROUGHTHEWATTLE AND INTO THE SOIL.
2.7.AT A MINIMUM, WOODEN STAKES SHOULD BE APPROXIMATELY3/4X3/4X 24INCHES. WILLOW CUTTINGSOR 3/8-INCH REBARCAN ALSOBEUSEDFORSTAKES.
2.8.STAKES SHOULD BEDRIVEN THROUGH THE MIDDLEOFTHEWATTLE, LEAVING 2 TO 3 INCHESOFTHESTAKEPROTRUDING ABOVETHE WATTLE.
3.MAINTENANCESTANDARDS
3.1.INSPECT WATTLES PRIOR TO FORECASTED RAIN, DAILY DURINGEXTENDED RAIN EVENTS, AFTER RAIN EVENTS, WEEKLYDURING THEWETSEASON, ANDAT
TWOWEEK INTERVALS ATALLOTHERTIMESOFTHEYEAR.
3.2.REPAIROR REPLACE SPLIT, TORN, RAVELING, ORSLUMPINGWATTLES
3.3.REMOVE SEDIMENT ACCUMULATIONS WHEN EXCEEDING1/2THE HEIGHTBETWEEN THE TOP OF THE WATTLE ANDTHE GROUNDSURFACE.
STRAW WATTLES
STD. PLAN - 213.40
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGreggZimmerman
PublicWorksAdministrator
UNLESS OTHERWISE NOTED, DRAWINGISNOT TOSCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT