New Speed Cameras on Rt 108 in Olney Maryland New speed cameras have been installed on Rt 108 in Olney, Maryland near the intersection of Rt 108 and Georgia Avenue. The cameras are in-front of St. John’s and the Post Office. The speed limit in BOTH directions is 35 MPH. The Speicher Team of RE/MAX in no way, shape or form condones speeding. This is for informational purposes only.