Pay Item
Pay Unit
Measure to the Nearest
Pay to the Nearest
Driven Anchors Grouted Anchors Rockfall Mesh
EA [Ea] EA [Ea] SY [m2]
EA [Ea] EA [Ea] 0.1 ft [0.05 m]
EA [Ea] EA [Ea] SY [m2]
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Scaling Rock Cuts
220.1DESCRIPTION
1 This section describes the requirements for the removal and disposal of unstable rocks
from cut slopes.
220.2MATERIALS—Vacant
220.3EQUIPMENT
1 Scaling (machine) consists of dragging a scaling apparatus suspended from a crane
over a slope to remove loose rock, soil, and debris. Provide a scaling apparatus consisting of a series of cleated dozer tracks, blasting mats, or similar equipment. Provide a crane with sufficient reach and lifting capacity to drag the scaling apparatus up and down the slope. If the equipment and methods do not produce the desired results, propose and test changes until results are satisfactory.
220.4CONSTRUCTION
1 Fifteen working days prior to commencing scaling, provide the engineer and the Geology
Program the following:
or higher Technician through the Society of Professional Rope Access Technicians
Climbing Instructors Association (PCIA) or document (provide resume) that they have acquired the equivalent knowledge, skills, and abilities required for certification through SPRAT or the PCIA by working on rock slopes.
Technician by SPRAT or Level 1 or higher Slope Access Technician through the PCIA, or document (provide resume) that they have acquired the equivalent knowledge, skills, and abilities required for certification through SPRAT or the PCIA by working on rock slopes
3.1The proposed construction sequence and schedule,
3.2A list of the equipment and tools the contractor will use for each slope,
3.3The number of scaling crews.
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Scaling Rock Cuts