South San Francisco, CA September 15, 2021 City press release
Starting Thursday, September 16 at 9:00 a.m., Westborough Water District will begin emergency waterline repair work that will impact eastbound travel along Westborough Boulevard at the I-280 interchange. Work will continue until the repair is complete, which is currently expected by Sunday, September 19 or sooner.
The northbound I-280 on-ramp will be CLOSED for vehicles traveling eastbound on Westborough Boulevard. Through-lanes along Westborough Boulevard will not be impacted at this time. Commuters can expect delays and are encouraged to use alternate routes.