10-43 Section 1018 1
BORROW MATERIAL 2 1018 -1 GENERAL 3 Borrow material is used for embankments, backfill or other intended uses. Material that 4 contains roots, root mats, stumps or other unsatisfactory material will not be acceptable. 5 1018 -2 APPROVAL OF BORROW MATERIAL 6 The approval of borrow material is subject to Section 230. 7
A.Statewide Criteria for Acceptance of Borrow Material 8 See exceptions in Subarticle 1018- 2(B). 9 Use only natural earth materials as borrow material. Any other materials are subject to 10 rejection . 11 TABLE 1018 -1 PIEDMONT AND WESTERN AREA CRITERIA FOR ACCEPTANCE OF BORROW MATERIAL Soil with PI of 25 or less Acceptable Soil with PI of 26 through 35 Acceptable, but not to be used in top 3 ft of embankment or backfill Soil with PI of more than 35 Not Acceptable
B.Exceptions to Statewide Criteria for Acceptance of Borrow Material 12
1.Soils in the Coastal Plain (area described below) will be accepted by the Engineer in 13 accordance with the Table 1018- 2. 14 TABLE 1018 -2 COASTAL AREA CRITERIA FOR ACCEPTANCE OF BORROW MATERIAL Soil with PI of 15 or less Acceptable Soil with PI of 16 through 20 Acceptable, but not to be used in top 3 ft of embankment or backfill Soil with PI of more than 20 Not Acceptable Areas where Table 1018- 2 is applicable are as follows: 15
Division 1 — Entire Division except Northampton (West of I -95)
Division 2 — Entire Division
Division 3 — Entire Division
Division 4 — Edgecombe, Wayne, Johnston (East of US 301), Wilson (East of I -
95), Nash (East of I -95), Halifax (East of I -95)
Division 6 — Bladen, Columbus, Robeson, Cumberland, Harnett (South of NC 27)
Division 8 — Scotland, Hoke, Moore (Southeast of US 15 -501, NC 73, NC 211),
Richmond (East of US 220 North and US 1 South) Table 1018- 2 shall be applicable to the flood plains of the Roanoke, Tar, Neuse, Cape 16 Fear and Lumber Rivers and their tributaries that are outside the above described areas. 17
2.Waste or by -products from industrial processes or mining operations are not 18 acceptable except by specific written approval. 19
3.When tested, soils having a pH of less than 5.5 or an organic content more than 4.0% 20 may be rejected by the Engineer . 21
4.When material is to be used for placing embankments or backfilling of undercut areas 22 that are excessively wet, the material shall consist of Class II, III or IV select material . 23
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Source: North Carolina Standard Specifications for Roads and Structures, 2024 Edition. Pages 459–459 of 857. View official source ↗