Payment Methods A. Except as otherwise provided by this Contract, the payment method will be one or more of the following:
Construction Methods 3.1 The Contractor shall provide all tools, equipment, materials, labor and work for the excavation and removal of the unsuitable subgrade soils and their subsequent replacement with the specified backfill soils as directed by the Owner’s representative. All work under this item shall be performed in a safe and workmanlike manner.
3.2 All work shall be performed in accordance with DelDOT Standard Specifications Section 821.
3.3 Following the removal of existing pavements, the Owner’s representative will review the exposed subgrade and provide recommendations for the undercutting of unsuitable subgrade materials as required. The depth and extent of undercut excavation, if required, will be determined by the Owner’s representative at the time of excavation.
3.4 All excavated materials shall become the property of the Contractor and be removed from the site at the completion of the project at no additional expense to the Owner.
3.5 Undercut excavations should be backfilled with graded aggregate. Backfill shall be placed in loose lifts not exceeding 8 inches thick. Each lift should be compacted with at least 3 passes of a minimum 5-ton, walk-behind or self-propelled vibratory roller when the size of the area permits, or with a vibrating plate mechanical compactor for smaller areas. Lift thickness shall be reduced to 6 inch loose lift when using a vibratory plate compactor.
3.6 The Contractor shall take precautions as necessary to minimize the potential for disturbance or softening of the pavement subgrade materials from inclement weather or construction traffic. As a minimum, this shall include the placement of backfill on the same day as the excavation. Any soft areas which develop shall be undercut and replaced with graded aggregate at no additional cost to the Owner.
3.7 Where undercutting is performed, the geotextile fabric shall be installed. The fabric should be pulled tight and lapped a minimum of 12 inches.
Accounting Methods Implement or adopt any change in its accounting principles, practices or methods, other than as may be required by generally accepted accounting principles.
Procurement Method Quality-Based Selection (b) Selection under a Fixed Budget
Payment Methodology The Grantee shall be reimbursed for actual, reasonable, and necessary costs based upon the Grant Budget, not to exceed the Maximum Liability established in Section
1. Upon progress toward the completion of the Scope, as described in Section A of this Grant Contract, the Grantee shall submit invoices prior to any reimbursement of allowable costs.
