COUNCIL BLUFFS, Iowa (CBS Local) — Police in Iowa seized approximately 1,500 pounds of marijuana during a routine traffic stop on New Year’s Day.

Investigators say Dmitry Borisov, 35, was driving a yellow 2016 Penske moving truck full of 61 cardboard boxes packed with pot.

Officers said they pulled over Borisov on eastbound I-80 in Council Bluffs for speeding, CBS affiliate KMTV reported.

After Borisov was ticketed, a police dog was summoned and sniffed out the pot in the truck.

Police estimate the street value of the marijuana to be about $4.5 million.

Borisov, who is from Los Angeles, was booked in the Pottawattamie County Jail suspicion of possession with intent to deliver, among other drug-related charges.