Ask Mr. Smarty Plants

Yes, grapes would love to climb a tall arbor!  You would probably be very safe planting the vines 6-10 feet away from your home, and depending on the orientation of the arbor, you may want to plant the vines on the far side of it, away from the house.  You can always double check that when you purchase the grape vines for planting.  The best native grape vine for your area would be the Riverbank Grape Vitis riparia (riverbank grape) since it is native not only to your state but is cold-hardy enough for your area.  You can see a picture of this vine at this link.  The California Wild Grape Vitis californica (California wild grape) is native to your state, but more so in the southwestern area of Oregon.  It may adapt well to your area, but need a little protection from extreme cold.  You can see a picture of this vine at this link.  The Fox Grape Vitis labrusca (fox grape) is one of the most popular grape vines in North America - the famous "Concord" variety is of the Fox Grape species - though it is native to the more eastern U.S.  You can see a picture of this vine at this link.  Again, it may adapt to your area well, and is more cold hardy than the California Wild Grape, though wouldn't be as sure a bet as the Riverbank Grape.  Some good places to purchase these vines can be found at this link: National Suppliers Directory.