The Speedwell Garage stood at the southwest corner of NW 14 and Couch in this 1917 photograph. Much of this block is gone, replaced by a feeder street to the I-405 northbound onramp. The remaining portion of this corner is a grassy area.
(City of Portland Archives)
Vintage Portland 
Again thank you! I have walked that corner more times than I can count. It is so interesting to see what the 405 took out.