SECTION 613 - EROSION CONTROL BLANKETS
613.01 Description This work shall consist of furnishing and installing erosion
control blankets on previously prepared areas in accordance with the manufacturer instructions or as called for on the plans or otherwise authorized. Erosion control blankets shall be installed on critical slopes, shoulder berms, esplanade strips, curb sections, in ditches and drainage ways, and other previously prepared areas or as shown. 6-45
613.02 Materials Erosion control blanket shall conform to the requirements
specified in the following Sections of Division 700 - Materials. Erosion Control Blankets 717.061 Ground Anchors 717.063
613.03 Site Preparation The area for erosion control blankets shall be prepared as
follows: Soil must be loose or scarified, smoothly raked and free of stones, litter, and any abrupt ground surface roughness under the blanket.
613.04 Seeding All seed shall be sown before installing erosi on control blankets.
No loam will be required for Seeding, unless called for on plans or designated. Seeding, Method Number 2 will be used unless otherwise specified.
613.05 Installation On Slopes and in ditches, blankets shall be aligned in the
direction of water flow and along the contours of berms. The uphill end of blanket shall be anchored in a trench no less than 6 inches deep and overlapped on the adjoining ends no less than 3 inches. Parallel strips shall be overlapped 4 inches on the sides. Approved anchor staples shall be placed at a maximum spacing of 3 feet on center or as required by the manufacturer, whichever is closer.
613.08 Method of Measurement Erosion control blanket will be measured by the
square yard based on the width and length of the blanket measured on the ground.
613.09 Basis of Payment Erosion control blankets of the type specified will be paid
for at the contract unit price per square yard complete in place and accepted. Such payment shall be full compensation for furnishing and installing the blankets and initial seeding under blanket in accordance with this specification and for all required maintenance. Payment will be made under: Pay Item P a y U n i t 613.319 Erosion Control Blanket S q u a r e Y a r d
Erosion Control Blankets in other states
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