Tennessee Code Title 54. Highways, Bridges and Ferries § 54-12-153

(a) After the road improvement district is established by the monthly county court, and all damages paid or secured, if the court is of the opinion that the report of the engineer already made is not sufficiently full or definite to enable the proper letting of contracts for the construction of the improvement, or for other reasons is not as full and definite as it should be, the court shall direct the engineer, or another appointed by the court for that purpose, to make a further and more complete survey and estimates of the district and cost of proposed improvements, and report to the court as to the same, giving all necessary and required information; how much of the improvements will be upon each tract of land, as nearly as practicable, giving definite estimates as to the cost and character of work, and dividing the work into convenient sections for making contracts, etc., and giving other particulars the court sees fit to direct.

(b) The report of the engineer shall be made and filed with the county clerk without unreasonable delay, and if the engineer fails to act with reasonable promptness, the court may remove the engineer and appoint another.