Rt 29 northbound is closed prior to Stewart Lane (New Hamshire Ave rt650) due to a major accident. Multiple transport uits and a second squad can be seen on the trafic cams. Sorry I have no radio to monitor. Here is the main link to the traffic cameras.
http://www.montgomerycountymd.gov/tmctmpl.asp?url=/content/dpwt/operations/tmc/cam.asp
http://www.montgomerycountymd.gov/tmctmpl.asp?url=/content/dpwt/operations/tmc/cam.asp