LOUISVILLE, Ky. (WDRB) – The Kentucky Transportation Cabinet plans to launch a review of curve speeds in the new Spaghetti Junction interchange and investigate factors that led to three tractor trailers overturning there in less than a month.

In the coming weeks, crews will add arrows on the roadway notifying drivers that they need to merge while approaching the ramp to Interstate 65 South from I-64 West, said Andrea Clifford, an agency spokeswoman. A semi-truck partially overturned on the ramp Tuesday.

That crash came a week after a truck carrying pigs on the way to a processing plant overturned and caught fire, closing the ramp from I-65 North to I-64 East for hours.

And in July, a truck toppled over on a ramp from I-71 to I-65 South, spilling glue across the roadway and also closing it for hours.

Clifford said officials will conduct an analysis of speeds in the curved parts of the junction, where Interstates 64, 65 and 71 converge east of downtown. The interchange was rebuilt and new ramps added as part of the $2.3 billion Ohio River Bridges Project.

One goal of the rebuilt junction was to eliminate dangerous portions where drivers had to merge quickly.

State officials also will review Louisville Metro Police Department reports of the recent crashes and talk with Trimarc employees about any issues they may have documented on traffic cameras in the junction, she said.

“We definitely have concerns and we want to take the appropriate steps that we can on our part, but we also need to see the underlying reasons why these crashes are happening,” she said.

Kentucky oversaw the work in Spaghetti Junction as part of the $1.3 billion downtown crossing part of the bridges project that also added the new I-65 Lincoln Bridge and strengthened the Kennedy Bridge next to it.

The Transportation Cabinet on Tuesday announced it had received a regional award for the downtown crossing, winning in the “Operations Excellence – Large Project” category in the American Association of State Highway and Transportation Officials competition.

Reach reporter Marcus Green at 502-585-0825, mgreen@wdrb.com, on Twitter or on Facebook. Copyright 2017 WDRB News. All rights reserved.