Generally, the appraisals will be made of TxDOT land for disposition plus the improvements that are to be sold with the property. The appraiser should be cautioned not to appraise any improvements to be removed by ROW PD before the sale. The rights to oil, gas, and sulfur should not be appraised.

Occasionally situations arise whereby it is expedient to exchange surplus maintenance sites for other land needed for highway purposes. An exchange of a surplus maintenance site will be handled much like exchanges of surplus ROW and will be based on appraised values of the lands. ROW PD will obtain approval of the proposed exchange from Support Services Division's Facilities Management Section and from the ROW Program Office before assigning the appraiser and requesting a work authorization for the appraiser.