301.04METHOD OF MEASUREMENT. "Aggregate Base Course" and/or "Gravel Borrow Base

301.01 DESCRIPTION. This work consists of providi ng one or more courses of graded aggregate

or gravel borrow and fillers, if required, on prepared subgrade surfaces in reasonable close conformity with the dimensions and details indicated on the Plans, all in accordance with these Specifications.

301.02 MATERIALS. The following materials shall conform to the applicable requirements of the

indicated Subsections of SECTION M; MATERIALS:

301.03 CONSTRUCTION METHODS. 301.03.1 Placing. If the required compacted depth of the base course exceeds 12 inches, the

base shall be constructed in two or more layers of approximate equal thickness. The maximum compacted thickness of any one layer shall not exceed 12 inches. The maximum size of stone in the gravel borrow or aggregate placed, shall not exceed 3/4ths of the depth of the layer after compaction. This restriction determines the maximum size of stone in the gravel borrow specification of Subsection M.01.09; Gradation of Aggregate .

301.03.2 Shaping and Compaction. Compaction of each layer shall continue until a density of

not less than 95 percent of the maximum densit y determined in accordance with AASHTO T180 has been achieved. The surface of each layer shall be maintained during the co mpaction operations in such a manner that a reasonable uniformity is produced. The compacted surface shall have a tolerance of ½-inch, plus-or-minus, to the grades shown on the Plans or as directed. However, no plus or minus deviation may continue for more than 100 feet in any direction. Field moisture content for Gravel Borrow shall be adjusted, if necessary, to be no greater than two percent (+2%) above the optimum moisture content.

301.04 METHOD OF MEASUREMENT. "Aggregate Base Course" and/or "Gravel Borrow Base

Course" will be measured by the number of cubic yard s or the number of tons, as the case may be, 3−2 actually in place in accordance with the Plans and/or as directed by the Engineer.

301.05 BASIS OF PAYMENT. The accepted quantities of "Aggregate Base Course" and/or

"Gravel Borrow Base Course," will be paid for at the respective contract unit prices per ton or cubic yard, as the case may be, as listed in the Proposal. The prices so-stated shall constitute full and complete compensation for all l abor, materials, and equipment, and all incidentals required to finish the work, complete and accepted by the Engineer. SECTION 302 GRAVEL BORROW SUBBASE COURSES

302.01 DESCRIPTION . This work consists of providing one or more courses of gravel borrow on

prepared subgrade surfaces in reasonably close conformity with the dimensions and details indicated on the Plans, all in accordance with these Specifications.

302.02 MATERIALS. Gravel Borrow shall meet the requirements of Subsection M.01.09;

Gradation of Aggregates, Table I, Column I prior to its final placement on the Project. The practice of culling deleterious or out of specification material after placement and/or grading in-place will not be allowed.

302.03 CONSTRUCTION METHODS. 302.03.1 Placing. Placing subbase materials shall conform to the requirements of Subsection

301.03.1 of these Specifications.

302.03.2 Shaping and Compaction. Shaping and compaction of s ubbase materials shall conform

to the requirements of Subsection 301.03.2 of these Specifications.

302.04 METHOD OF MEASUREMENT. "Gravel Borrow Subbase C ourse" will be measured by the

number of cubic yards actually placed in accordance with the Plans and/or as directed by the Engineer. 302.05 BASIS OF PAYMENT. The accepted quantity of "Gravel Borrow Subbase Course" will be paid for at the contract unit price per cubic yard as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials, and equipment, and all incidentals, including trimming and fine grading required to finish the work, complete and accepted by the Engineer.