Replacing a water main isn't that big of a deal, but
what's causing it is...
In another snafu for the Highway 99 tunnel project, Seattle utility managers said Monday that soil settlement near the job site may force them to dig up First Avenue South and replace a water main at state expense.
The 16-inch-diameter line moves water through downtown along First Avenue South, where survey readings by the Washington State Department of Transportation (WSDOT) showed the soil settled as much as 1.4 inches in November.