This section is from the book "The Law Of Contracts", by William Herbert Page. Also available from Amazon: Commercial Contracts: A Practical Guide to Deals, Contracts, Agreements and Promises.
Where it is necessary to raise, lower or alter existing inlets, such work shall be done as directed. The price bid shall include the necessary excavation, backfill, masonry and the resetting of castings.
(New castings where ordered will be paid for separately.
Should the amount of reconstruction found necessary involve the use of over one-fifth cubic yard of masonry, such excess will be paid for under the item for "Brick" or "Concrete Masonry," this payment being in addition to the price bid for readjustment.