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Division 200 — Grading and Removals

211Subgrade Scarifying

MO · 2026 (Oct) Standard Specifications✓ Full text on BuildSpecBook pages 143–143 Save this section

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211.1 Description. This work shall consist of loosening the su rface of the roadbed and remov ing all rocks larger

than 4 inches. Tentativ e locations of su bgrade scarifying will be shown on the plans, bu t the engineer will specify all locations of this work by written order.

211.2 Construction Requirements. The engineer will specify areas where su bgrade scarifying is to be

performed. The contractor shall perform all specified work necessary to loosen the su rface of the roadbed ov er the fu ll width to a depth of 6 inches below the finished grading section, and to remov e all rocks larger than 4 inches. Ov ersized material shall be disposed of as directed by the engineer. After all ov ersized material has been remov ed; the roadbed shall be brou ght back to a satisfactory grade and cross section by the addition of extra material, if needed, withou t rocks exceeding 4 inches .

211.3 Method of Measurement. Measu rement will be along the centerline of the roadbed, regardless of the

width, to the nearest 1/10 station for each segment and totaled to the nearest 100 feet for the su m of all segments.

211.4 Basis of Payment. The accepted qu antity of su bgrade scarifying will be paid for at the contract u nit price.

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Source: Missouri Standard Specifications for Highway Construction, 2026 (Oct) Edition. Pages 143–143 of 874. View official source ↗

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Scoped to Missouri Missouri Standard Specifications for Highway Construction, Section 211 — Subgrade Scarifying. Every answer cites the section it came from, with a verification date — don’t trust a percentage, click the citation.