A. 
The areas to be protected shall be dressed to the line and grade shown on the plans prior to the placing of riprap. Riprap shall be placed in accordance with the details and to the dimensions shown on the plans, or as established by the Engineer, or as specified herein.
B. 
Riprap shall not be placed on embankment areas until the embankment has been compacted to the satisfaction of the Engineer or the designated representative of the Engineer.
C. 
No grout shall be placed when the air temperature is below 35-degrees F. The work shall be protected from rapid drying at least three days after placement.
D. 
All formwork shall meet the applicable requirements of Section 03100 Concrete Formwork.
(Ordinance 2007-106, App. B, adopted 3/20/07)
A. 
Concrete Riprap.
All steel reinforcement shall meet the requirements of Section 03200 Concrete Reinforcement.
Bar reinforcement shall be supported properly throughout the placement to maintain its position approximately equidistant from the top and bottom surface of the slab.
If the ground is dry and not consolidated properly, the Engineer may require the entire area to be sprinkled and consolidated before the concrete is placed. All surfaces shall be moist when concrete is placed.
After the concrete has been placed, compacted and shaped to conform to the dimensions shown on the plans, and after it has set sufficiently to avoid slumping, the surface shall be finished with a wooden float to secure a reasonably smooth surface or broom finished as approved by the Engineer.
Immediately following the finishing operation the riprap shall be cured in accordance with Section 03300 Cast-in-Place Concrete.
B. 
Grouted Stone Riprap.
The base course of stone shall be bedded well into the ground with their edges in contact. Each succeeding course shall be well bedded into and placed on even contact with the preceding course. The finished surface shall present an even, tight surface true to the line and grades of the plans.
To provide for proper grouting, care shall be taken to prevent earth or sand from filling the spaces between the stones. After the stones are in place, the stones shall be wetted thoroughly and the spaces between the stones shall be completely filled with grout. The surface of the riprap shall be swept with a stiff broom after grouting.
(Ordinance 2007-106, App. B, adopted 3/20/07)