delivered the opinion of the court.
“The only theory upon which the appellants can successfully maintain this appeal is that their complaint states facts showing that the respondent abandoned the original contract, or by its acts prohibited the appellants from performing the contract according to th,e terms thereof, and that an entirely new contract was by law impliedly entered into, and further that the unit agreement of compensation would not govern.”
It would seem that the first position taken by counsel in regard to the itemized statement of account sued upon indicates that the complaint was understood. No objection was taken to the statement filed. The further motion to make the complaint more definite and certain which was allowed by the court in effect required the plaintiffs to change their form of action to one strictly for damages for a breach of the contract. We think the facts alleged in the complaint show that the contract between the parties was deviated from in material particulars, so that all its terms would not *531 apply to the construction of the work as completed. An extended discussion of the facts alleged would not be of assistance in the trial of the cause, as they might appear different from the evidence introduced.
The main question is: Can plaintiffs, under the facts shown in the complaint, maintain an action for the reasonable value of the work performed? It is. stated in 4 Elliott, Contracts, Section 3697, as follows:
“Sometimes it happens that the original contract has been deviated from in so many matters that it can hardly be regarded as controlling the parties at all, and in such cases the original contract is often treated as abandoned, and a new contract is implied to pay the fair or reasonable value of the work or materials. # # So, again, in Vermont, ‘where the parties under a special contract deviate, from the original plan agreed upon, and the terms of the original contract do not appear to be applicable to the new work, it being beyond what was originally contemplated by the parties, it is undoubtedly to be regarded and treated as work wholly extra, out of the scope of the contract, and may be recovered for as such. * * ’ ”
A subsequent departure from the terms of a written contract by the parties and mutually acquiesced in abrogates the original contract to that extent:
Zanello
v.
Iron Works,
It is contended by counsel for defendant that the plaintiffs, while setting out the contract, utterly abandoned it and are now attempting to recover the reasonable value of the services performed; that according to the terms of the contract the plaintiffs are not entitled to any extra compensation. With this contention we are unable to agree. We think the following rule applicable: Even though the engineer is given full power" to supervise and manage the work, he cannot so conduct the same as to retard its progress or prevent the performance of the contract, no matter how seemingly broad his power may be:
Dubois
v.
Delaware & Hud. Canal Co.,
4 Wend. (N. Y.) 285;
Del. Genovese
v.
Third Ave. R. Co.,
The judgment of the lower court will therefore be reversed, and the cause remanded for such further proceedings as may be deemed proper not .inconsistent herewith. Reversed.
