Washington D.C. (District of Columbia)
The main traffic cam website for Washington D.C. District of Columbia is app.ddot.dc.gov, however this site in the past was known to go down so as an alternet site for Washington D.C you can see Washington D.C's cams from Montgomery County, maryland's 511 website by going to atms.montgomerycountymd.gov/jpgcap/TL and Montgomery County's main site is https://montgomerycountymd.gov/dot.