Shoulder construction is the construction of a new shoulder due to moving ditches or widening embankments on the existing roadway. Place earth material along the completed edge of pavement and construct shoulders as shown on the sketch map and/or as directed by the Engineer. Backfill and compact the area to the satisfaction of the Engineer. Materials Furnish all earth material for the construction of the shoulders. Provide earth material that meets the approval of the Engineer. No testing will be necessary. Measurement and Payment Shoulder Construction will be measured and paid as the actual number of shoulder miles that have been constructed. Measurement will be made along the surface of each shoulder and to the nearest 0.01 of a mile. Such price and payment will be full compensation for furnishing earth material, hauling, placing, compaction, and all incidentals necessary to complete construction of the shoulders. Incidental Stone Base will be measured and paid as provided in Article 545-6 of the Standard Specifications. Seeding and Mulching will be measured and paid as provided elsewhere in this contract. Payment will be made under: Pay Item Pay Unit Shoulder Construction Shoulder Mile Description The work covered by this provision consists of clipping high shoulders and reconstructing the earth shoulder in accordance with Standard Drawing No. 560.01 and 560.02 of the Roadway Standard Drawings with the following exceptions: the width will be shown on typical sections, or to the existing shoulder point, whichever is nearer, as long as the desired typical is achieved. Seeding and mulching shall be performed upon completion of shoulder grading when earth borrow is used. This work shall be performed immediately after the resurfacing operations are complete as directed by the Engineer. Materials The Contractor shall furnish all earth material necessary for the construction of the shoulders in accordance with Section 1019 of the Standard Specifications. All soil is subject to test and acceptance or rejection by the Engineer. The Contractor is required to use Aggregate Shoulder Borrow (ASB) on all maps with shoulder reconstruction with the exception of areas considered residential lawns, where borrow excavation is needed. Borrow excavation shall be used in lieu of ASB if directed by the contract or Engineer. ASB shall meet the following gradation: Sieve Percent Passing 1 1/2" 100 1/2" 55 - 95 #4 35 - 74 Construction Methods Obtain material from within the project limits or approved source. Prior to adding ASB material, the existing shoulder shall be scarified to provide the proper bond and shall be compacted to the satisfaction of the Engineer. Any excess material generated by the shoulder reconstruction shall be disposed of by the Contractor in an approved disposal site.
