The department shall not commence construction on any part of the state route number 520 bridge replacement and HOV project until a record of decision has been reached providing reasonable assurance that project impacts will be avoided, minimized, or mitigated as much as practicable to protect against further adverse impacts on neighborhood environmental quality as a result of repairs and improvements made to the state route number 520 bridge and its connecting roadways, and that any such impacts will be addressed through engineering design choices, mitigation measures, or a combination of both. The requirements of this section shall not apply to off-site pontoon construction supporting the state route number 520 bridge replacement and HOV project. The requirements of this section shall not apply during the 2009-2011 and 2011-2013 fiscal biennia.