(a) (1) The Administration shall keep books that show in detail all expenditures made to establish or improve highways in this State or to perform any other of its duties.

(2) The Administration shall compile and publish annually and shall keep copies of maps, plans, and statistics that show the progress and status of work on all State highways and, by county, the county roads of each county in this State.

(3) The Administration shall keep a record of each contract, agreement, grant, or license that it makes or issues.

(b) Except as provided by law, all books and records of the Administration are public records and open to public inspection.