Construction on the Donna-Rio Bravo International Bridge is complete.

Almost three years after the project began, the grand opening awaits diplomatic finishing touches, said Richard Pauza, press officer for the South Texas U.S. Customs and Border Protection office in Laredo.

“We’re still awaiting the exchange of diplomatic notes to officially open the bridge,” he said. “No firm official date has been set.”

The City of Donna is planning a grand opening for the bridge, tentatively scheduled for Dec. 14.

The bridge, which took three years to complete, was built without infrastructure for agricultural traffic.

The bridge has four lanes each way and included infrastructure to accommodate commercial traffic but lacks inspection stations.

According to an article in the Valley Morning Star, an additional $30 million in funding is needed to add commercial inspections, and it could take another two and a half years to add them.

The City of Donna expects an estimated 2,000 vehicles to cross southbound per day at first.

Booths will operate 6 a.m. to midnight.