2016-07-11_REVISION - M1980244

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 7/11/2016
• Doc Name: TR78 Corrected
• From: Newmont
• To: DRMS
• Type & Sequence: TR78
• Email Name: TC1
• Media Type: D
• Archive: No

Newmont-Cripple Creek&Victor Gold Mine
Technical Specification No.02271.DOCX
Squaw Gulch VLF ■
Project No.475.0106.006
June 15,2016
SECTION 02271.0 RIPRAP
1. PART 1: GENERAL
1.1. Description
All work shall be carried out in compliance with these SPECIFICATIONS and in conformance with
the lines, grades, and dimensions as shown on the DRAWINGS.
1.2. Related Sections
Refer to the following Sections for related work:
■ Section 02200.0 Earthworks
■ Section 03300.0 Cast-in-place Concrete
2. PART 2: SPECIFICATIONS AND INSTALLATION
2.1. Material Specifications
A. Rip rap shall consist of hard, dense, and durable stone, angular in shape, and resistant
to weathering. Rounded stone or boulders will not be accepted as riprap material.
The stone shall have a specific gravity of at least 2.5. Each piece shall have its
greatest dimension not greater than three times its least dimension. If approved by
CERTIFYING ENGINEER, removed concrete may be used for riprap provided it meets
the other requirements of thissection.
B. Material used for riprap will be approved by CERTIFYING ENGINEER if, by visual
inspection, the rock is determined to be sound and durable. MANAGER and
CERTIFYING ENGINEER may require CONTRACTOR to furnish laboratory results to
verify that the material meets SPECIFICATIONS. At the request of MANAGER,
CONTRACTOR shall furnish laboratory test results indicating that the material meets
the requirements for strength as indicated in the following table.
Test Description Test Method Specification Requirement
Point Load Tensile Strength ISRM RTH 325-89/ASTM D5731 300 psi(min)
C. Rip rap shall conform to the gradation requirements given in the following table:
Stone Sized 1 Percent of Material Smaller than Typical Stone Dimensions;
(in) Typical Stone' (in)
6 70—100 12
2-10 2
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