The latest inspection of the 61-year-old Alaskan Way Viaduct in Seattle found some new cracking.

The Washington Transportation Department says the elevated highway along the waterfront is safe, but vulnerable in an earthquake.

A routine inspection was conducted the weekend of March 1-2 and discovered new and wider cracks near Spring and Seneca streets.

The department said Monday the cracks are a half-mile north of -- and unrelated to -- the machine drilling the Highway 99 replacement tunnel.

The department plans to close the viaduct again on Saturday March 22 for a follow-up inspection. The cracks may be filled with epoxy.

 The viaduct has been regularly inspected since the 2001 Nisqually earthquake and it has settled more than 5 inches at one spot near Yesler Way.