HomeMy WebLinkAbout213.10MIN. 6" OVERLAP
III
NOTESI -
1. CONDITION OF USE I -III -III -I
1.1. FOR PERMANENT STABILIZATION OF SLOPES 2H:1V OR GREATER AND WITH MORE THAN 10 FEET OF VERTICAL RELIEF.
1.2. IN CONJUNCTION WITH SEED FOR FINAL STABILIZATION OF A SLOPE, NOT FOR TEMPORARY COVER. HOWEVER, THEY MAY BE USED FOR
TEMPORARY APPLICATIONS AS LONG AS THE PRODUCT IS NOT DAMAGED BY REPEATED HANDLING.
1.3. THE APPLICATION OF APPROPRIATE NETTING OR BLANKET TO DRAINAGE DITCHES AND SWALES CAN PROTECT BARE SOIL FROM CHANNELIZED
RUNOFF WHILE VEGETATION IS ESTABLISHED. NETS AND BLANKETS CAN ALSO CAPTURE GREAT DEAL OF SEDIMENT DUE TO THEIR OPEN,
POROUS STRUCTURE. SYNTHETIC NETS AND BLANKETS MAY BE USED TO PERMANENTLY STABILIZE CHANNELS AND MAY PROVIDE A
COST-EFFECTIVE, ENVIRONMENTALLY PREFERABLE ALTERNATIVE RIPRAP.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. JUTE MATTING MUST BE USED IN CONJUNCTION WITH MULCH. EXCELSIOR, WOVEN STRAW, BLANKETS, AND COIR ( COCONUT FIBER) BLANKETS
MAY BE INSTALLED WITHOUT MULCH. OTHER TYPES OF PRODUCT WILL BE EVALUATED INDIVIDUALLY.
2.2. PURELY SYNTHETIC BLANKETS ARE ALLOWED, BUT SHALL ONLY BE USED FOR LONG-TERM STABILIZATION OF WATERWAYS. THE ORGANIC
BLANKETS, ARE BETTER FOR SLOPE PROTECTION AND SHORT-TERM WATERWAY PROTECTION
3. MAINTENANCE STANDARDS
3.1. GOOD CONTACT WITH THE GROUND MOST BE MAINTAINED, AND THERE MOST NOT BE EROSION BENEATH THE BET OR BLANKET.
3.2. AREAS OF THE NET OR BLANKET THAT ARE DAMAGED OR NOT CLOSE CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED.
3.3. IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL BE FIXED AND THE ERODED AREA PROTECTED.
Y � STD. PLAN - 213.10
PUBLIC WORKS WATERWAY INSTALLATIONS
DEPARTMENT
If MARCH 2008