METAIRIE, La. (AP) — State highway officials have asked the original contractor that install Interstate 10 sound walls in Metairie to come up with a fix following complaints from residents.

Mike Stack, district administrator of the state Department of Transportation and Development, tells The Times-Picayune the Federal Highway Administration is on board, a necessary first step before anything else can happen.

Residents on both sides of I-10 say noise from the highway near the Bonnabel exit has multiplied since sound walls were completed in early 2009.

Stack said engineers suspect the problem is several gaps that seem to funnel traffic noise into the nearby neighborhoods.

Boh Bros. Construction Co. was the original contractor on the widening of Interstate 10 between Causeway Boulevard and the 17th Street Canal.