Texas Transportation Code - TRANSP § 366.004. Construction Costs Defined

(1) the actual acquisition, construction, improvement, extension, or expansion of the turnpike project or system;

(2) the acquisition of real property, rights-of-way, property rights, easements, and other interests in real property;

(3) machinery and equipment;

(4) interest payable before, during, and after acquisition, construction, improvement, extension, or expansion as provided in the bond proceedings;

(5) traffic estimates, revenue estimates, engineering and legal services, plans, specifications, surveys, appraisals, construction cost estimates, and other expenses necessary or incidental to determining the feasibility of the construction, improvement, extension, or expansion;

(6) necessary or incidental administrative, legal, and other expenses;

(7) compliance with laws, regulations, and administrative rulings;

(8) financing;

(9) the assumption of debts, obligations, and liabilities of an entity relating to a turnpike project or system transferred to an authority by that entity;  and

(10) expenses related to the initial operation of the turnpike project or system.