Officials are expecting Potomac River to flood as a result of Hurricane Sandy, a powerful storm expected to pummel Maryland starting Monday evening. We're keeping an eye for flooding around the region, as well. 

Watch this video of the spillway at Route 29 and Northwest Branch, a tributary of the Anacostia River, filling with water as rain fell in Silver Spring, shot Monday afternoon by a Silver Spring Patch reader. 

Everything there is to know about Hurricane Sandy in Silver Spring and Burtonsville.

Parts of Route 29 were temperarily closed Monday due to flooding, according to Twitter updates from Montgomery County Police. 

Have your own photos or video of flooding, high winds or other signs of Sandy? Upload them here. 

Sign up for breaking news alerts on Hurricane Sandy from Silver Spring Patch. 

Follow Silver Spring Patch on Facebook and Twitter for up-to-the-minute alerts.