For today's Throwback Thursday let's salute the men and women who keep our freeways clean and safe! Summer travel means these folks work overtime on our behalf. Enjoy these photos of road crews (plus a service station) from the early 1930s in the Tri-Cities area.

Dept. of Energy, Hanford Project
Dept of Energy, Hanford Project
Dept of Energy, Hanford Project
Dept of Energy, Hanford Project