751LOAM

DESCRIPTION

751.20: General

The work under this item consists of furnishing and placing loam and related items on an approved area in accordance with these specifications and in close conformity with the lines and grades shown on the plans or established by the Engineer. The work includes the placing, spreading and grading of loam for seeded and planted areas, preparation of soil for plant material, amendment of loam as required to produce planting soil mix, and provision of soil additives requ ired to adjust for pH requirements of specific plants. MATERIALS

751.40: General

Material shall meet the requirements specified in the following Subsections of Division III, Materials: Loam .................................................................................................................................................. M1.05.0 Organic Soil Additives ................................................................................................................ M1.06.0 Inorganic Amendments ............................................................................................................. M6.01.0 Samples and Submittals At least 30 days prior to ordering, the Contractor shall submit to the Engineer representative samples, certifications, and certified test results for materials as specified below. No materials shall be delivered until the required submittals have been rev iewed and approved by the Engineer. Delivered materials shall closely match the approved samples. Approval of test results does not constitute final acceptance. The Engineer reserves the right to reject on or after delivery any material which does not meet the Specifications. II.351 202 4 Edition Soil Additives for Loam Additives shall be used to counteract soil deficiencies as recommended by the soil analysis. Organic matter used as an amendment to soil shall be manufactured compost. Lime or sulfur shall be used to bring soil to acceptable pH levels, per soil test reports. For soils with more than 20 % passing the No. 200 sieve, gypsum shall be added at a rate of 3.2 pcf . Soil amendments shall be incorporated thoroughly into loam to meet the specified requirements for loam prior to delivering the material on site.

751.60: Preparation of Areas on which Loam is to be Placed

All areas to receive loam shall be free of construction debris, refuse, compressible or decayable materials and standing water. The area upon which the above materials are to be placed shall be raked, harrowed or dragged to form a smooth surface. All stones, undesirable growth and debris larger than 2 in . in diameter shall be removed from the area and disposed of by the Contractor outside the location. Grade stakes shall be set to check grades. Deviation from lines and grades that are greater than 1 in. shall not be permitted. When directed by the Engineer, additional suitable material available from excavation or furnished under Item 150, Ordinary Borrow, shall be spread as required to repair gullies or depressions. The labor, equipment and materials necessary to place, compact and grade the additional material shall be paid for under the respective item from which the material is obtained.

751.61: Placing Loam

The Contractor shall notify the Engineer when areas to receive loam are ready for inspection and approval. Placement of loam fill material shall not begin until the Engineer has approved the grading of the material that the loam is placed upon. Loam shall not be handled or placed when the ground or the loam is frozen or saturated, i.e., when squeezed sample shows any sign of free moisture. The Engineer shall approve the use of the Contractor's equipment. Any equipment or procedures that are likely to damage or over- compact underlying structure or materials shall be rejected. Loam shall be placed in lifts not to exceed 4 in. After each lift, the soil shall be thoroughly mixed into the soil layer beneath it. Compaction of each lift shall be minimal, sufficient only to achieve the required grades. Over- compaction of existing soils or fills that would be detrimental to planting objectives shall be corrected by tilling or other means at no additional cost. Grade stakes shall be set to check finished grades. Deviation from lines and grades that are greater than 1 in . shall not be permitted. The Contractor shall supply additional loam as necessary so that following finish the grading and compaction operations, the placed loam shall conform to the depth required. II.352 202 4 Edition Finish grades shall exhibit no abrupt changes and shall blend in evenly with the undisturbed grade of the ground at the limits of work. During hauling operations, the roadway surfaces shall be kept clean and any loam or other dirt which may be brought upon the surface shall be removed promptly and thoroughly before it becomes compacted by traffic. If necessary, the wheels of all vehicles u sed for hauling shall be cleaned frequently and kept clean to avoid bringing any dirt upon the surface. The Contractor shall take all reasonable precautions to avoid injury to existing or planted growth. COMPENSATION

751.80: Method of Measurement

The quantity of Loam for Roadsides and Loam for Lawns shall be determined by measurement in place after compaction to the depth specified on the plans or as directed, and there shall be no additional compensation to account for such loss as may be due to settlement, shrinkage and penetration into the underlying material.

751.81: Basis of Payment

Loam for Roadsides and Loam for Lawns will be paid for at the contract unit price per cubic yard, complete in place, which prices shall include all testing, analysis and the grading of areas where stockpiles of topsoil are removed.

751.82: Payment Items

751. Loam for Roadsides ..................................................................................................... Cubic Yard

751.1Loam for Lawns ............................................................................................................ Cubic Yard

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