The timing finally seems right for building the Knik Arm Bridge in Anchorage, Alaska. The state receives about 90% of it’s non-federal revenue from oil taxes and royalties, and oil prices have dropped about in half to $55 per barrel in recent months. So taxpayers are in no mood to repay the federal government $73 million in planning funds that it has advanced Alaska to build the $900-million toll bridge. After two earlier failures, starting in 2007, cancellation of the procurement moving ahead now would trigger that invoice.