This street, as with Dravus Street, was created in 1888 as part of Denny & Hoyt’s Addition to the City of Seattle, Washington Territory, and is also is part of a series of streets — Aetna, Bertona, Cremona, Dravus, Etruria, and Florentia — that appear in alphabetical order and have the common theme of being locations in Italy. Montebello di Bertona (Mundibbèlle in the Abruzzese dialect) is a small town in Pescara, Abruzzo, located near Mt. Bertona.
Technically, W Bertona Street begins as Bertona Street at the Ship Canal Trail around 80 feet east of Queen Anne Avenue N, but both streets there are little more than parking aisles nestled up against Seattle Pacific University’s Wallace Field. W Bertona begins in earnest at W Nickerson Street and goes ¾ of a mile west to 14th Avenue W, where it becomes a block-long stairway to 15th Avenue W. On the other side of 15th, it goes two more blocks before being stopped by the BNSF Railway tracks at 17th Avenue W; on the other side of the tracks it goes ⅗ of a mile west from 20th Avenue W to 30th Avenue W, becoming a stairway again for a block just about halfway. As with its Magnolia partner W Dravus Street, it’s ⅓ of a mile from 31st Avenue W to 36th Avenue W, where it becomes a stairway for a block, and then ½ a mile more from 37th Avenue W to 45th Avenue W. There is finally a 300-foot-long segment west of Perkins Lane W, where the roadway ends. (There is a shoreline street end beyond that, but it is currently inaccessible.)