Seattle City Council considers vote to back Conlin's actions on tunnel

The Seattle City Council took steps Monday to ratify council President Richard Conlin's signing of a Highway 99 tunnel environmental document last week.

The council introduced an ordinance that "ratifies and confirms" Conlin's signature, which launched an ongoing dispute over whether he usurped Mayor Mike McGinn's power.

City Attorney Peter Holmes issued a statement Monday saying Conlin's action was "not an affront" to McGinn's executive authority. By signing the document, Holmes said, Conlin did not certify the adequacy of the state's supplemental draft environmental-impact statement for the tunnel project.

The ordinance introduced Monday says Conlin's signature is meant to keep the city involved as a "co-lead," helping to author the final study.

Already, the state funds 16 city transportation employees doing Highway 99 planning for the city. Early next year, the council wants to sign right-of-way and utility agreements with the state Department of Transportation for tunnel construction.

McGinn has criticized the $2 billion tunnel, saying it would promote car use and expose the city to cost overruns. Proponents tout the value of replacing the Alaskan Way Viaduct with a quiet underground highway.

An apparent majority is expected to pass the ordinance next Monday.

The mayor's office had no immediate reaction to Holmes' statement. It also wouldn't say whether McGinn would veto the ordinance, if it passes.

Mike Lindblom: 206-515-5631 or mlindblom@seattletimes.com