238No payment will be made under this section for material obtained within the

made under this section for material obtained within the excavation limits of the project if the Contractor is directed to use the material as B borrow or structure backfill in a pipe trench, culvert, construction of an embankment or fill, or if the Contractor uses the material for its own convenience. Material obtained from within the excavation limits of the project and which the Contractor is directed 260 to use as B borrow or structure backfill for other purposes including replacement of undercut areas, support for a retaining wall sy stem, and end bent fill will be paid for at the contract unit price of $5.00 per cubic yard for B borrow/structure backfill handling. The cost of disposal of excavated material shall be included in the cost of the pay items in this section.