SALEM (AP) - State officials have scrapped plans to study the potential for a private toll road to handle growth in Clackamas County.

The Sunrise Corridor project would cost nearly $1 billion and would not attract enough toll-paying traffic to make financial sense, according to a report to the Oregon Transportation Commission from the Macquarie Infrastructure Group, an Australian company.

A separate report said it looks more feasible to add lanes to Interstate 205, but that works best if tolls are charged on the entire freeway - not just the new lanes. No money is available for either project.

Members of the commission seemed taken aback by the reports, which were released Wednesday.

The project would consist of 13 miles of roadway, part six lanes and part four lanes, from I-205 to the new city of Damascus.