The Arizona Department of Transportation is seeking public comment on a proposed highway that would ease traffic congestion on Interstate 10 in downtown Phoenix.

ADOT released the environmental impact study Friday, signaling the start of the public comment period.

Timothy Tait with ADOT says a major goal of the proposed highway is to alleviate traffic on I-10 as it passes through Phoenix.

“Absolutely, it’s going to be a means to ease the travel through downtown Phoenix,” Tait said. “The Broadway curve on Interstate 10 is a critically congested area, and it’s going to continue to become more congested in the future. We have to do something, and this is the solution we’ve come up with.”

The proposed eight-lane freeway would split at the Loop 202 and reconnect between 59th Avenue and the West Loop 101, depending on which model is chosen.

That would run the highway through a portion of South Mountain Park and near the Gila River Indian Community.

If the highway is approved, construction could begin as early as 2015.

The draft environmental statement and information on how to comment can be found on the ADOT website,