If current trends continue, the Utah Department of Transportation will have a $7 million budget surplus June 30 the end of the 1987-88 fiscal year.

According to budget figures presented to the Utah Transportation Commission, the state has net collections of almost $3 million more than it had budgeted for.The state collected $3.5 million more than it anticipated in gasoline tax revenues and almost $3 million more in other sources of revenue.

Those totals were offset by less-than-expected revenues from motor vehicle registrations fees ($1.1 million less than budgeted for) and federal reimbursements ($2.9 million less than budgeted for).

Aviation fuel tax revenues were down by $485,000 and safety inspection revenues were down by almost $125,000. At the same time, revenue from highway use taxes, drivers license fees, transportation permits and other permits were up slightly.