02378 Riprap and Rock Lining.docx
DOCX document 20 KB Posted
- Attached to
- SF ELK CREEK GUZZLER INSTALLATION
- Solicitation number
- 140L6221Q0026
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Text version
SECTION 02378
RIPRAP AND ROCK LINING
PART 1: GENERAL
1.1 SUMMARY
A. Section Includes: Providing riprap used for HDPE liner weight.
1.2 DEFINITIONS
A. Satisfactory Materials: Materials classified in ASTM D 2487 as GW, GP, SW and free from roots and other organic matter, trash, debris, and frozen materials and stones larger than 100 mm (4 inches) in dimension are satisfactory.
PART 2: PRODUCTS
2.1 MATERIALS
A. Riprap Source: The Contractor shall furnish the riprap source.
B. Loose Riprap: Stone shall consist of hard, durable stone, cobbles, or spalls, angular in shape, resistant to weathering and to water action. The riprap shall meet the gradation specified below.
Table 1: Riprap Gradation
| Sieve Designation |
| Percentage Passing |
| 100 mm (4 inch) |
| 100 |
| 50 mm (2 inch) |
| 50 – 100 |
| 19 mm (3/4 inch) |
| 10 – 25 |
| 4.75 mm (No. 4) |
| 0 5 |
PART 3: EXECUTION
3.1 INSTALLATION
A. Loose Riprap: Place on the BOSS HDPE liner as per Boss Tank Manufacture’s Installation instructions “NE Nevada Water Catchment”. Place riprap to its full course thickness in one operation and avoid displacing the underlying material. Placing of riprap by dumping into chutes, or by similar methods likely to cause segregation, shall not be permitted. Hand placing or rearranging of individual stones by mechanical equipment shall not be permitted.
PART 4: MEASUREMENT AND PAYMENT
4.1 METHOD OF MEASUREMENT
A. Units: The work described in this section will be measured and paid by the cubic yard.
4.2 BASIS OF PAYMENT
A. Payment:
Prices and payment will be full compensation for the work described in this section. Payment will be made under:
Pay Item Pay Unit
02378(01) Loose Riprap Cubic Yard
END OF SECTION
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