...after the submission of an estimate of the engineer, dispute or complain of such statement or estimate, nor assert that there was any misunderstanding in regard to the nature or amount of work to be done. "The excavation, the masonry and other parts of the work have been divided into classes...

...foregoing estimates of the engineer, and shall not, at any time after the submission of an estimate, dispute or complain of such statement or estimate...misunderstanding in regard to the nature or amount of the work to be done." The proposed contract contained the following provision : "It is expressly understood...

...to satisfy themselves as to the accuracy of the estimate of the engineer, and should not at any time dispute or complain of such statement or estimate...that there was any misunderstanding in regard to the depth of the excavation to be made 'or the nature or amount of the work to be done; and the bidders...

...and nature of the work to be done under this contract, and as to the value of the privilege involved, and shall not, at any time after the submission of a bid or estimate, dispute or complain as to the foregoing statements as to the amount or kinds of materials...

...in accordance therewith, and that he shall not and will not dispute or complain of such statement, nor assert that there was any misunderstanding in regard to the nature or amount of the materials to be furnished or work to be done; and he covenants and agrees that he will complete the...

...foregoing estimates of the Engineer, and shall not, at any time after the submission of an estimate, dispute or complain of such statement or estimate...misunderstanding in regard to the nature or amount of the work to be done." The proposed contract contained the following provision : " It is expressly understood...

...according to the Specifications and Plans, and shall not at any time after the submission of his proposal dispute or complain of such statement or estimate...that there was any misunderstanding in regard to the work to be done or the materials to be furnished. c. Bidders should make an inspection and estimate....

...according to the Specifications and Plans, and shall not at any time after the submission of his proposal dispute or complain of such statement or estimate...Engineer, nor assert that there was any misunderstanding ill regard to the work to be done or the materials to be furnished. c. Bidders should make an inspection...

...accuracy of this estimate, or set up any claims whatever based on its alleged inaccuracy, or to claim any misunderstanding in regard to the nature or amount of the work to be done or quantities of material to be furnished under such contract. The list of quantities hereto...

...bidders to make personal examination of the location, and forbidding them thereafter from asserting "that there was any misunderstanding in regard to the nature or amount of the work to be done." Reading all these provisions together, it seems reasonably certain that the defendant...