(WS bridge and Highway 99 views; more cams on the WSB Traffic page)
6:16 AM: As today’s traffic watch begins, four things you should know:

1ST OF 4 BLUE ANGELS/I-90 CLOSURE DAYS: Today’s the only day with two closure windows – 9:45 am-noon, 1:15-2:40 pm.

NEW BIKE CORRAL READY TO USE … SE corner of California/Alaska in The Junction.

SW ROXBURY SAFETY MEETING TONIGHT: Whether you bike it, bus it, drive it, walk it, you’ve got a stake in the city’s proposals. 6 pm, Southwest Library.

HIGHWAY 99 AUGUST CLOSURE REMINDER: Today, the state starts an awareness campaign (including advertising here and elsewhere) about the August 22-27 Highway 99 closures. Here’s the official infopage.

6:40 AM UPDATE: Thanks to the person who just texted that the low bridge is “stuck open.” SDOT confirms this via Twitter and says a crew is en route to fix it.

7:20 AM UPDATE: SPD has tweeted that the low bridge is “back in service.”

5:13 PM UPDATE: In case you find this before the related news story, a fire and police investigation in the 7300 block of 16th SW has closed 16th in that area and 125/128 buses are being rerouted. No estimate on how long this will last. The fire might have been arson and investigators are on scene to try to determine if that’s so.