The Delaware River Joint Toll Bridge Commission, the New Hope-based bi-state agency that operates seven toll bridges including the I-80 span between Pennsylvania and New Jersey, received a similar request from the GAO, said spokesman Joe Donnelly.
The toll inquiry was triggered by U.S. Sen. Frank Lautenberg (D., N.J.), who has criticized recent toll increases on bridges and tunnels operated by the Port Authority of New York and New Jersey.
Lautenberg wrote to GAO asking it to examine the toll hikes, said Lautenberg spokesman Caley Gray.
A GAO spokesman, Ned Griffith, said recent toll increases "have raised questions about whether transportation authorities are remaining accountable to their congressionally approved compacts."
GAO is looking at three areas, Griffith said in an email:
"(1) To what extent do interstate compacts and related legislation establish priorities and oversight processes for transportation authorities?
"(2) How have transportation authorities set tolls, spent toll revenue, and made these decisions transparent?
"(3) To what extent have the actions of transportation authorities been consistent with interstate compact priorities and leading practices for toll-setting decisions?"
Griffith said GAO investigators have just begun their work and cannot predict when they will report their findings.
DRPA board members, including Gov. Corbett, debated Wednesday how to respond to the GAO's request for toll information.
Rob Teplitz, representing Pennsylvania auditor general Jack Wagner on the board, urged that the DRPA's new inspector general be the main liaison with federal investigators.
Corbett, who chairs the DRPA board, said chief executive John Matheussen and DRPA attorney Danielle McNichol should meet with GAO investigators. At Teplitz's urging, he agreed inspector general Thomas Raftery be included.
"I think we have a very good story to tell . . . about how we increase tolls," Matheussen said. "We didn't just do this on a whim."
The DRPA is $1.2 billion in debt, and more than 40 percent of toll revenue goes to debt payment and debt-related costs.
Much of that debt accumulated during the last 15 years, as the DRPA spent about $500 million on economic-development projects, such as sports stadiums, museums, and concert halls.
All of the money borrowed for economic development has now been spent, and the DRPA board has promised to end the practice of spending on non-transportation-related economic development.
On Wednesday, DRPA officials reiterated that financial and governance reforms approved two years ago will be made by the end of 2012.
In 2010, the DRPA board responded to demands of Pennsylvania and New Jersey governors with a well-publicized flurry of new rules designed to make the agency more accountable, transparent, and fair.
But "most of the reforms have not been incorporated into the authority's bylaws and standard operating procedures," inspector general Raftery wrote in a report in May.
DRPA spokesman Tim Ireland said Wednesday that working groups are meeting four times a month to implement the reforms, which will require changes in DRPA bylaws and resolutions.
A motorists' organization said Wednesday "the changes can't come soon enough."
"We've already been waiting two years for the change to happen," said Jenny M. Robinson, spokeswoman for AAA Mid-Atlantic. And she said the GAO investigation of toll increases also "serves to underline our longstanding concerns. We hope the feds can shine a light on last year's toll hikes."
Contact staff writer Paul Nussbaum at 215-854-4587 or firstname.lastname@example.org