NEW YORK (AP) - Officials at the Port Authority of New York and New Jersey insist the agency is capable of overseeing a project to build a new Hudson River rail tunnel despite having other large projects that are delayed and over budget.

NEW YORK (AP) Officials at the Port Authority of New York and New Jersey insist the agency is capable of overseeing a project to build a new Hudson River rail tunnel despite having other large projects that are delayed and over budget.

Authority Chairman John Degnan says he's working on internal structural changes to help ensure timely project completions.

The Port Authority agreed to oversee the tunnel project and other rail improvements expected to cost about $20 billion.

Among the agency's other large-scale projects, the World Trade Center transportation hub is years past due and double its initial cost, and the Bayonne Bridge elevation is delayed more than a year.

The agency also faces criminal investigations over how it awards contracts, and two former officials were charged this year in the George Washington Bridge lane-closing scandal.