Pittsburgh Mayor Luke Ravenstahl wrote to the state Gaming Control Board today, expressing "concern" at design changes proposed by casino license holder Don Barden, whose North Shore construction project has been delayed and modified while he finalizes financing.

"I am concerned about the proposed delay of the construction of the dock and access paths and on the long-term impact of certain design changes requested" at yesterday's City Planning Commission meeting, the mayor wrote. "I am not willing to compromise the development in a way that negatively impacts the riverfront and the City. It is my responsibility to ensure that the City of Pittsburgh and its citizens receive what was originally promised to us."

Mr. Ravenstahl reiterated his support for Mr. Barden's overall efforts. He also repeated his OK to Mr. Barden's intended postponement of completion of a ballroom and amphitheater.

But he differed with the Detroit-based businessman on numerous proposed changes to his design, including the reduction of some brick paving along the Ohio River in favor of exposed concrete, the cutting of shrubbery and native grasses in favor of a lawn, and the elimination of criss-crossing sidewalks.

"Pittsburgh's riverfront developments are not only environmental treasures; they are becoming a portal for economic activity," the mayor wrote.