This is about 2" long. It is white on its underside and looks like a small salamander, except for it being white underneath. It is about 1/8th inch wide.
That is definitely a lizard, not a salamander. Salamanders don't have scales. It is a Northern Alligator lizard, Elgaria coerulea, in the family Anguidae. https://www.inaturalist.org/check_lists/9307-Reptiles-of-Oregon https://en.wikipedia.org/wiki/Northern_alligator_lizard