851.1 851.4(c)
851.1DESCRIPTION —This work is construction of a rock outlet protection of the type indicated. This work
includes the maintenance and removal of temporary outlet protection as indicated.
851.2MATERIAL —
851.3CONSTRUCTION— As shown on Standard Drawings , as specified in Section 850.3, and as follows:
install geotextile , and backfill with rock of the class indicated. If required, after rock is in place, saturate the rock with water, then completely fill the voids between pieces with grout, for at least the top 6 inches, and sweep the surface with a stiff broom. Do not place grout if the air temperature is below freezing. In hot, dry weather, protect grouted rock from excessive heat and keep moist for at least 3 days after grouting, using saturated burlap.
required, install geotextile, and backfill with rock of the class indicated. Make appropriate connection to downstream receiving watercourse as indicated. If required, after rock is in place, saturate the rock with water, then completely fill the voids between pieces with grout, for at least the top 6 inches, and sweep the surface with a stiff broom. Do not plac e grout if the air temperature is below freezing. In hot, dry weather, protect grouted rock from excessive heat and keep moist for at least 3 days after grouting, using saturated burlap.
install geotextile, and backfill with rock of the class indicated. If required, make appropriate connection to downstream receiving watercourse as indicated.
install geotextile, and backfill with rock of the class indicated. Make appropriate connection to downstream receiving watercourse as indicated.
Stockpile rock used in temporary installations on site if necessary before permanent installations. Reuse rock for permanent outlet protection as indicated.
sediment and repair or replace washed out areas to restore outlet protection functionality .