4:50 PM: In the WSB Forums, via a comment, and a phone call, we’ve been asked about what looks like a re-do of some concrete work on the new 1st Avenue South onramp/offramp to the Spokane Street Viaduct section of the West Seattle Bridge. SDOT‘s Marybeth Turner confirms that’s what it is: “Yes, the contractor is taking out a piece of the barricade on the First Avenue S Ramp and will redo it. One end was off by five inches. It’s at no cost to the city and it won’t affect the project schedule.”
ADDED 8:41 PM: Thanks to Scott for pointing out in comments that the Seattle Times (WSB partner) has just put up a story with additional details.