From a two-part briefing on the Highway 99/Viaduct project (and side issues) that just concluded at this morning’s Seattle City Council meeting:
99 LANE CLOSURES POSTPONED, BUT TONIGHT’S CLOSURE STILL ON: The big breaking news came mid-briefing – WSDOT apparently has heeded the observations that the work that was going to lead to weeks of lane closures north of downtown is NOT urgent, and they’ve decided to postpone it TFN. The work was to pour foundations for signs that won’t even be needed until the tunnel opens. However, tonight’s overnight closure of NB 99 north of the Battery Street Tunnel, in order to remove the “Mercer wiggle,” IS still on.
Also on the subject of closures:
INSPECTION CLOSURE: When WSDOT started its part of the briefing, it was revealed that the next major inspection closure of the entire Viaduct will be the last weekend of this month, March 28-29. We’re checking to see if that will be a wall-to-wall all-weekend closure, or a “6 am to 6 pm each day” closure.
TUNNEL MACHINE UPDATES: WSDOT’s Matt Preedy went through the steps of how the machine’s cutterhead will be dissembled.
(Added: 11:38 am screengrab from repair-pit camera)
The main piece is likely to be lifted toward the end of this month, and if all goes well, the machine could restart in August, he said. (See the WSDOT slide deck here.)
CITY BRIEFING: The council-meeting discussion began with an SDOT update on the in-progress “what if the Viaduct had to be closed before the tunnel is open?” SDOT leaders stressed that this is NOT intended to make people think a closure is expected, just that they are continuing to make sure the city is ready just in case. One unsettling point, though – the amount of bus service that would be needed to help mitigate a longterm Viaduct shutdown would take two years to ramp up. (See the SDOT slide deck here.)